./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 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/pthread-wmm/safe032_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:57:59,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:57:59,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:57:59,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:57:59,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:57:59,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:57:59,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:57:59,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:57:59,255 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:57:59,255 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:57:59,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:57:59,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:57:59,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:57:59,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:57:59,255 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:57:59,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:57:59,256 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:57:59,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:57:59,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:57:59,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:59,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:57:59,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:57:59,260 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 -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2025-03-04 09:57:59,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:57:59,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:57:59,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:57:59,485 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:57:59,486 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:57:59,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2025-03-04 09:58:00,636 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2cca6/a85f9a7c92c74258afd55ff09412efd7/FLAG5e1289b73 [2025-03-04 09:58:00,912 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:00,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2025-03-04 09:58:00,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2cca6/a85f9a7c92c74258afd55ff09412efd7/FLAG5e1289b73 [2025-03-04 09:58:01,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2cca6/a85f9a7c92c74258afd55ff09412efd7 [2025-03-04 09:58:01,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:01,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:01,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:01,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:01,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:01,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ba2ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01, skipping insertion in model container [2025-03-04 09:58:01,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:01,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:01,538 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:01,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:01,618 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:01,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01 WrapperNode [2025-03-04 09:58:01,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:01,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:01,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:01,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:01,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,650 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-03-04 09:58:01,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:01,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:01,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:01,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:01,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,664 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 09:58:01,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,669 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:01,677 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:01,677 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:01,677 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:01,678 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (1/1) ... [2025-03-04 09:58:01,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:01,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:01,705 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 09:58:01,708 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 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:58:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:58:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:58:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:01,728 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 09:58:01,818 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:01,820 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:01,953 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:01,953 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:02,027 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:02,028 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:02,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:02 BoogieIcfgContainer [2025-03-04 09:58:02,028 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:02,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:02,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:02,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:02,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:01" (1/3) ... [2025-03-04 09:58:02,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bca9269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:02, skipping insertion in model container [2025-03-04 09:58:02,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:01" (2/3) ... [2025-03-04 09:58:02,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bca9269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:02, skipping insertion in model container [2025-03-04 09:58:02,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:02" (3/3) ... [2025-03-04 09:58:02,037 INFO L128 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2025-03-04 09:58:02,048 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:02,050 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe032_tso.i that has 4 procedures, 44 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:58:02,050 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:02,095 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:58:02,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 102 flow [2025-03-04 09:58:02,147 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-03-04 09:58:02,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:02,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2025-03-04 09:58:02,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 45 transitions, 102 flow [2025-03-04 09:58:02,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2025-03-04 09:58:02,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:02,175 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;@5b277ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:02,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:58:02,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:02,189 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2025-03-04 09:58:02,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:02,189 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:02,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:02,190 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)] === [2025-03-04 09:58:02,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -172532101, now seen corresponding path program 1 times [2025-03-04 09:58:02,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:02,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74514224] [2025-03-04 09:58:02,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:02,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:02,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:02,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:02,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:02,440 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 09:58:02,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:02,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74514224] [2025-03-04 09:58:02,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74514224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:02,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:02,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:02,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63296511] [2025-03-04 09:58:02,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:02,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:02,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:02,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:02,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:02,470 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2025-03-04 09:58:02,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 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) [2025-03-04 09:58:02,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:02,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2025-03-04 09:58:02,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:03,201 INFO L124 PetriNetUnfolderBase]: 6628/10229 cut-off events. [2025-03-04 09:58:03,201 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-04 09:58:03,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19735 conditions, 10229 events. 6628/10229 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 61967 event pairs, 6628 based on Foata normal form. 882/11051 useless extension candidates. Maximal degree in co-relation 19724. Up to 9387 conditions per place. [2025-03-04 09:58:03,299 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 29 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2025-03-04 09:58:03,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 145 flow [2025-03-04 09:58:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-03-04 09:58:03,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45185185185185184 [2025-03-04 09:58:03,316 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 61 transitions. [2025-03-04 09:58:03,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 145 flow [2025-03-04 09:58:03,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:03,325 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2025-03-04 09:58:03,328 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-03-04 09:58:03,333 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2025-03-04 09:58:03,333 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2025-03-04 09:58:03,334 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) [2025-03-04 09:58:03,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:03,334 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:03,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:58:03,334 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)] === [2025-03-04 09:58:03,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash -172531721, now seen corresponding path program 1 times [2025-03-04 09:58:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:03,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5638704] [2025-03-04 09:58:03,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:03,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:03,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:03,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:03,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:03,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:03,579 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 09:58:03,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5638704] [2025-03-04 09:58:03,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5638704] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:03,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:03,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104023562] [2025-03-04 09:58:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:03,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:03,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:03,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:03,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:03,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 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) [2025-03-04 09:58:03,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:03,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:03,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:04,085 INFO L124 PetriNetUnfolderBase]: 4634/7384 cut-off events. [2025-03-04 09:58:04,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:04,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14295 conditions, 7384 events. 4634/7384 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 44335 event pairs, 818 based on Foata normal form. 294/7667 useless extension candidates. Maximal degree in co-relation 14289. Up to 3859 conditions per place. [2025-03-04 09:58:04,123 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 61 selfloop transitions, 5 changer transitions 1/73 dead transitions. [2025-03-04 09:58:04,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 292 flow [2025-03-04 09:58:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-03-04 09:58:04,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2025-03-04 09:58:04,126 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 4 states and 109 transitions. [2025-03-04 09:58:04,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 292 flow [2025-03-04 09:58:04,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:04,127 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2025-03-04 09:58:04,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2025-03-04 09:58:04,128 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2025-03-04 09:58:04,128 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2025-03-04 09:58:04,128 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) [2025-03-04 09:58:04,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:04,136 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] [2025-03-04 09:58:04,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:58:04,136 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)] === [2025-03-04 09:58:04,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash 954244893, now seen corresponding path program 1 times [2025-03-04 09:58:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:04,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375060223] [2025-03-04 09:58:04,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:04,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:58:04,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:58:04,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:04,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:04,285 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 09:58:04,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:04,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375060223] [2025-03-04 09:58:04,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375060223] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:04,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:04,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922975265] [2025-03-04 09:58:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:04,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:04,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:04,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:04,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:04,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:04,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 09:58:04,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:04,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:04,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:04,648 INFO L124 PetriNetUnfolderBase]: 2514/3994 cut-off events. [2025-03-04 09:58:04,648 INFO L125 PetriNetUnfolderBase]: For 687/687 co-relation queries the response was YES. [2025-03-04 09:58:04,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 3994 events. 2514/3994 cut-off events. For 687/687 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 20516 event pairs, 536 based on Foata normal form. 194/4177 useless extension candidates. Maximal degree in co-relation 9003. Up to 1317 conditions per place. [2025-03-04 09:58:04,662 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 78 selfloop transitions, 8 changer transitions 1/93 dead transitions. [2025-03-04 09:58:04,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 93 transitions, 416 flow [2025-03-04 09:58:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2025-03-04 09:58:04,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2025-03-04 09:58:04,664 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 5 states and 139 transitions. [2025-03-04 09:58:04,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 93 transitions, 416 flow [2025-03-04 09:58:04,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 406 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:04,670 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 153 flow [2025-03-04 09:58:04,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2025-03-04 09:58:04,670 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2025-03-04 09:58:04,670 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 153 flow [2025-03-04 09:58:04,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 09:58:04,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:04,671 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] [2025-03-04 09:58:04,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:58:04,671 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)] === [2025-03-04 09:58:04,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 530863088, now seen corresponding path program 1 times [2025-03-04 09:58:04,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:04,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505872269] [2025-03-04 09:58:04,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:04,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:04,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 09:58:04,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 09:58:04,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:04,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:04,830 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 09:58:04,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:04,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505872269] [2025-03-04 09:58:04,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505872269] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:04,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568592569] [2025-03-04 09:58:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:04,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:04,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:04,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:04,832 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:04,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 09:58:04,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:04,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:04,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:05,039 INFO L124 PetriNetUnfolderBase]: 1573/2419 cut-off events. [2025-03-04 09:58:05,040 INFO L125 PetriNetUnfolderBase]: For 1302/1302 co-relation queries the response was YES. [2025-03-04 09:58:05,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5968 conditions, 2419 events. 1573/2419 cut-off events. For 1302/1302 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10867 event pairs, 487 based on Foata normal form. 64/2472 useless extension candidates. Maximal degree in co-relation 5957. Up to 918 conditions per place. [2025-03-04 09:58:05,049 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 65 selfloop transitions, 11 changer transitions 1/83 dead transitions. [2025-03-04 09:58:05,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 399 flow [2025-03-04 09:58:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:05,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2025-03-04 09:58:05,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2025-03-04 09:58:05,050 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 153 flow. Second operand 6 states and 139 transitions. [2025-03-04 09:58:05,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 399 flow [2025-03-04 09:58:05,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 374 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:05,061 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 167 flow [2025-03-04 09:58:05,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2025-03-04 09:58:05,061 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2025-03-04 09:58:05,061 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 167 flow [2025-03-04 09:58:05,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 09:58:05,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:05,062 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, 1, 1, 1] [2025-03-04 09:58:05,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:58:05,062 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)] === [2025-03-04 09:58:05,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:05,063 INFO L85 PathProgramCache]: Analyzing trace with hash 930569155, now seen corresponding path program 1 times [2025-03-04 09:58:05,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:05,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783910404] [2025-03-04 09:58:05,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:05,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:05,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 09:58:05,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 09:58:05,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:05,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:05,245 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 09:58:05,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:05,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783910404] [2025-03-04 09:58:05,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783910404] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:05,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:05,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:58:05,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788793580] [2025-03-04 09:58:05,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:05,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:58:05,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:05,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:58:05,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:58:05,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:05,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 167 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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 09:58:05,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:05,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:05,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:05,860 INFO L124 PetriNetUnfolderBase]: 3645/5535 cut-off events. [2025-03-04 09:58:05,860 INFO L125 PetriNetUnfolderBase]: For 3702/3702 co-relation queries the response was YES. [2025-03-04 09:58:05,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13783 conditions, 5535 events. 3645/5535 cut-off events. For 3702/3702 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 28657 event pairs, 960 based on Foata normal form. 24/5550 useless extension candidates. Maximal degree in co-relation 13771. Up to 1951 conditions per place. [2025-03-04 09:58:05,901 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2025-03-04 09:58:05,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 150 transitions, 883 flow [2025-03-04 09:58:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 09:58:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 09:58:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 246 transitions. [2025-03-04 09:58:05,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45555555555555555 [2025-03-04 09:58:05,903 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 167 flow. Second operand 12 states and 246 transitions. [2025-03-04 09:58:05,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 150 transitions, 883 flow [2025-03-04 09:58:05,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 150 transitions, 681 flow, removed 30 selfloop flow, removed 8 redundant places. [2025-03-04 09:58:05,920 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-03-04 09:58:05,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-03-04 09:58:05,921 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2025-03-04 09:58:05,921 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-03-04 09:58:05,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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 09:58:05,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:58:05,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:58:05,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:58:05,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:58:05,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:58:05,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:58:05,926 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 09:58:05,931 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:05,931 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:05,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:05 BasicIcfg [2025-03-04 09:58:05,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:05,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:05,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:05,937 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:05,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:02" (3/4) ... [2025-03-04 09:58:05,940 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:05,942 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:05,942 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:05,942 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:05,944 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:58:05,944 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-04 09:58:05,944 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 09:58:05,944 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 09:58:05,995 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:05,996 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:05,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:05,996 INFO L158 Benchmark]: Toolchain (without parser) took 4771.12ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 108.8MB in the beginning and 141.9MB in the end (delta: -33.1MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,997 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.99ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 88.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.55ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,999 INFO L158 Benchmark]: Boogie Preprocessor took 25.44ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,999 INFO L158 Benchmark]: IcfgBuilder took 351.12ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 65.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,999 INFO L158 Benchmark]: TraceAbstraction took 3906.47ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 65.3MB in the beginning and 146.2MB in the end (delta: -80.9MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:06,000 INFO L158 Benchmark]: Witness Printer took 58.86ms. Allocated memory is still 285.2MB. Free memory was 146.2MB in the beginning and 141.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:06,001 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 125.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.99ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 88.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.55ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.44ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 351.12ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 65.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3906.47ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 65.3MB in the beginning and 146.2MB in the end (delta: -80.9MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. * Witness Printer took 58.86ms. Allocated memory is still 285.2MB. Free memory was 146.2MB in the beginning and 141.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 678 IncrementalHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 1 mSDtfsCounter, 678 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 09:58:06,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE