./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:56:23,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:56:23,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:56:23,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:56:23,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:56:23,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:56:23,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:56:23,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:56:23,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:56:23,585 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:56:23,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:56:23,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:56:23,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:56:23,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:56:23,586 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:56:23,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:56:23,587 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:56:23,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:56:23,588 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:56:23,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:56:23,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:56:23,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:56:23,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:56:23,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:56:23,590 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2025-02-06 12:56:23,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:56:23,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:56:23,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:56:23,871 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:56:23,871 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:56:23,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-02-06 12:56:25,177 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/75da3c2a0/962718f52be64fb699ecfe4a2b70af1b/FLAG6345ba287 [2025-02-06 12:56:25,504 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:56:25,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-02-06 12:56:25,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/75da3c2a0/962718f52be64fb699ecfe4a2b70af1b/FLAG6345ba287 [2025-02-06 12:56:25,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/75da3c2a0/962718f52be64fb699ecfe4a2b70af1b [2025-02-06 12:56:25,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:56:25,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:56:25,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:25,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:56:25,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:56:25,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:25" (1/1) ... [2025-02-06 12:56:25,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7369ea15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:25, skipping insertion in model container [2025-02-06 12:56:25,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:56:25" (1/1) ... [2025-02-06 12:56:25,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:56:26,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:26,132 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:56:26,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:56:26,212 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:56:26,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26 WrapperNode [2025-02-06 12:56:26,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:56:26,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:26,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:56:26,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:56:26,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,244 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-02-06 12:56:26,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:56:26,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:56:26,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:56:26,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:56:26,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,254 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,265 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-02-06 12:56:26,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,270 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:56:26,276 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:56:26,276 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:56:26,276 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:56:26,277 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (1/1) ... [2025-02-06 12:56:26,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:56:26,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:56:26,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:56:26,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 12:56:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:56:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:56:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:56:26,337 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:56:26,444 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:56:26,446 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:56:26,673 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:56:26,673 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:56:26,802 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:56:26,803 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:56:26,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:26 BoogieIcfgContainer [2025-02-06 12:56:26,803 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:56:26,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:56:26,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:56:26,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:56:26,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:56:25" (1/3) ... [2025-02-06 12:56:26,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a80f284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:26, skipping insertion in model container [2025-02-06 12:56:26,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:56:26" (2/3) ... [2025-02-06 12:56:26,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a80f284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:56:26, skipping insertion in model container [2025-02-06 12:56:26,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:26" (3/3) ... [2025-02-06 12:56:26,812 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2025-02-06 12:56:26,825 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:56:26,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_31-traces-mine-vs-mutex_true.i that has 2 procedures, 40 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:56:26,827 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:56:26,868 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 12:56:26,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 41 transitions, 89 flow [2025-02-06 12:56:26,933 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-06 12:56:26,936 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:56:26,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 2/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2025-02-06 12:56:26,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 41 transitions, 89 flow [2025-02-06 12:56:26,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 84 flow [2025-02-06 12:56:26,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:56:26,959 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;@a49acd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:56:26,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-06 12:56:26,976 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:56:26,976 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2025-02-06 12:56:26,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:56:26,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:26,977 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:56:26,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-06 12:56:26,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1305058989, now seen corresponding path program 1 times [2025-02-06 12:56:26,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127120638] [2025-02-06 12:56:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:26,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:27,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:56:27,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:56:27,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:27,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:56:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:56:27,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:56:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127120638] [2025-02-06 12:56:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127120638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:56:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:56:27,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:56:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545115387] [2025-02-06 12:56:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:56:27,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:56:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:56:27,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:56:27,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:56:27,408 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-02-06 12:56:27,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:27,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:56:27,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-02-06 12:56:27,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:56:27,647 INFO L124 PetriNetUnfolderBase]: 102/281 cut-off events. [2025-02-06 12:56:27,648 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:56:27,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 281 events. 102/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1221 event pairs, 28 based on Foata normal form. 14/286 useless extension candidates. Maximal degree in co-relation 501. Up to 147 conditions per place. [2025-02-06 12:56:27,652 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 36 selfloop transitions, 7 changer transitions 0/56 dead transitions. [2025-02-06 12:56:27,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 204 flow [2025-02-06 12:56:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:56:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:56:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-02-06 12:56:27,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2025-02-06 12:56:27,668 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 84 flow. Second operand 5 states and 117 transitions. [2025-02-06 12:56:27,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 204 flow [2025-02-06 12:56:27,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:56:27,678 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 118 flow [2025-02-06 12:56:27,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2025-02-06 12:56:27,686 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2025-02-06 12:56:27,688 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 118 flow [2025-02-06 12:56:27,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:27,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:27,689 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:56:27,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:56:27,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-06 12:56:27,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:27,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1158402138, now seen corresponding path program 1 times [2025-02-06 12:56:27,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:27,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903140430] [2025-02-06 12:56:27,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:27,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:27,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:56:27,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:56:27,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:27,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:56:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:56:27,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:56:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903140430] [2025-02-06 12:56:27,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903140430] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:56:27,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:56:27,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:56:27,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665142407] [2025-02-06 12:56:27,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:56:27,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:56:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:56:27,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:56:27,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:56:27,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-02-06 12:56:27,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:27,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:56:27,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-02-06 12:56:27,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:56:27,944 INFO L124 PetriNetUnfolderBase]: 56/208 cut-off events. [2025-02-06 12:56:27,944 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 12:56:27,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 208 events. 56/208 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 862 event pairs, 21 based on Foata normal form. 17/221 useless extension candidates. Maximal degree in co-relation 341. Up to 92 conditions per place. [2025-02-06 12:56:27,947 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 29 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2025-02-06 12:56:27,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 234 flow [2025-02-06 12:56:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:56:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:56:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-02-06 12:56:27,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6991869918699187 [2025-02-06 12:56:27,948 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 118 flow. Second operand 3 states and 86 transitions. [2025-02-06 12:56:27,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 234 flow [2025-02-06 12:56:27,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 227 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 12:56:27,951 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 162 flow [2025-02-06 12:56:27,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-02-06 12:56:27,954 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-02-06 12:56:27,954 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 162 flow [2025-02-06 12:56:27,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:27,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:27,954 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] [2025-02-06 12:56:27,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:56:27,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-06 12:56:27,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:27,955 INFO L85 PathProgramCache]: Analyzing trace with hash 737395024, now seen corresponding path program 1 times [2025-02-06 12:56:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:27,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596028682] [2025-02-06 12:56:27,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:27,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:56:27,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:56:27,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:27,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:56:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:56:28,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:56:28,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596028682] [2025-02-06 12:56:28,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596028682] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:56:28,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:56:28,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:56:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296215035] [2025-02-06 12:56:28,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:56:28,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:56:28,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:56:28,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:56:28,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:56:28,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-02-06 12:56:28,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:56:28,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-02-06 12:56:28,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:56:28,318 INFO L124 PetriNetUnfolderBase]: 26/129 cut-off events. [2025-02-06 12:56:28,318 INFO L125 PetriNetUnfolderBase]: For 64/67 co-relation queries the response was YES. [2025-02-06 12:56:28,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 129 events. 26/129 cut-off events. For 64/67 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 5 based on Foata normal form. 12/140 useless extension candidates. Maximal degree in co-relation 245. Up to 65 conditions per place. [2025-02-06 12:56:28,319 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 24 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2025-02-06 12:56:28,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 219 flow [2025-02-06 12:56:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:56:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:56:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-02-06 12:56:28,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2025-02-06 12:56:28,321 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 162 flow. Second operand 4 states and 88 transitions. [2025-02-06 12:56:28,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 219 flow [2025-02-06 12:56:28,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 206 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 12:56:28,324 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 146 flow [2025-02-06 12:56:28,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2025-02-06 12:56:28,325 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2025-02-06 12:56:28,325 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 146 flow [2025-02-06 12:56:28,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:28,325 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] [2025-02-06 12:56:28,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:56:28,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-06 12:56:28,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1263480819, now seen corresponding path program 1 times [2025-02-06 12:56:28,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:28,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225358105] [2025-02-06 12:56:28,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:28,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:28,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:56:28,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:56:28,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:28,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:56:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:56:28,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:56:28,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225358105] [2025-02-06 12:56:28,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225358105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:56:28,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:56:28,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:56:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632272167] [2025-02-06 12:56:28,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:56:28,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:56:28,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:56:28,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:56:28,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:56:28,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-02-06 12:56:28,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:56:28,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-02-06 12:56:28,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:56:28,639 INFO L124 PetriNetUnfolderBase]: 26/121 cut-off events. [2025-02-06 12:56:28,639 INFO L125 PetriNetUnfolderBase]: For 50/52 co-relation queries the response was YES. [2025-02-06 12:56:28,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 121 events. 26/121 cut-off events. For 50/52 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 16 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 244. Up to 69 conditions per place. [2025-02-06 12:56:28,642 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 24 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2025-02-06 12:56:28,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 212 flow [2025-02-06 12:56:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:56:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:56:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2025-02-06 12:56:28,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47317073170731705 [2025-02-06 12:56:28,646 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 146 flow. Second operand 5 states and 97 transitions. [2025-02-06 12:56:28,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 212 flow [2025-02-06 12:56:28,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:56:28,650 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 144 flow [2025-02-06 12:56:28,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2025-02-06 12:56:28,651 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-02-06 12:56:28,652 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 144 flow [2025-02-06 12:56:28,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:56:28,653 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, 1] [2025-02-06 12:56:28,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:56:28,653 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-06 12:56:28,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:56:28,654 INFO L85 PathProgramCache]: Analyzing trace with hash 520549002, now seen corresponding path program 1 times [2025-02-06 12:56:28,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:56:28,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285780368] [2025-02-06 12:56:28,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:56:28,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:56:28,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 12:56:28,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 12:56:28,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:56:28,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:56:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:56:28,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:56:28,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285780368] [2025-02-06 12:56:28,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285780368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:56:28,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:56:28,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:56:28,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523278537] [2025-02-06 12:56:28,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:56:28,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:56:28,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:56:28,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:56:28,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:56:28,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-02-06 12:56:28,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:56:28,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-02-06 12:56:28,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:56:28,759 INFO L124 PetriNetUnfolderBase]: 25/119 cut-off events. [2025-02-06 12:56:28,760 INFO L125 PetriNetUnfolderBase]: For 56/59 co-relation queries the response was YES. [2025-02-06 12:56:28,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 119 events. 25/119 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 21 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 104. Up to 90 conditions per place. [2025-02-06 12:56:28,762 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2025-02-06 12:56:28,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 192 flow [2025-02-06 12:56:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:56:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:56:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-02-06 12:56:28,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5203252032520326 [2025-02-06 12:56:28,764 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 144 flow. Second operand 3 states and 64 transitions. [2025-02-06 12:56:28,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 192 flow [2025-02-06 12:56:28,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 178 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:56:28,766 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-06 12:56:28,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-02-06 12:56:28,767 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2025-02-06 12:56:28,767 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-06 12:56:28,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:56:28,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2025-02-06 12:56:28,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2025-02-06 12:56:28,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-06 12:56:28,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:56:28,771 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-06 12:56:28,775 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:56:28,777 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:56:28,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:56:28 BasicIcfg [2025-02-06 12:56:28,784 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:56:28,785 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:56:28,785 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:56:28,786 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:56:28,786 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:56:26" (3/4) ... [2025-02-06 12:56:28,789 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:56:28,793 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-06 12:56:28,796 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-06 12:56:28,797 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:56:28,797 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:56:28,797 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 12:56:28,852 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:56:28,853 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:56:28,853 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:56:28,853 INFO L158 Benchmark]: Toolchain (without parser) took 3092.33ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 75.3MB in the end (delta: 47.8MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2025-02-06 12:56:28,853 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:28,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.31ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 103.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:56:28,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.43ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:56:28,854 INFO L158 Benchmark]: Boogie Preprocessor took 30.03ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:28,854 INFO L158 Benchmark]: IcfgBuilder took 527.61ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 75.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:56:28,854 INFO L158 Benchmark]: TraceAbstraction took 1979.57ms. Allocated memory is still 167.8MB. Free memory was 75.2MB in the beginning and 80.4MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:28,855 INFO L158 Benchmark]: Witness Printer took 67.71ms. Allocated memory is still 167.8MB. Free memory was 80.4MB in the beginning and 75.3MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:56:28,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.31ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 103.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.43ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.03ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 527.61ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 75.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1979.57ms. Allocated memory is still 167.8MB. Free memory was 75.2MB in the beginning and 80.4MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.71ms. Allocated memory is still 167.8MB. Free memory was 80.4MB in the beginning and 75.3MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: 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 3 procedures, 55 locations, 3 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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 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! [2025-02-06 12:56:28,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE