./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/goblint-regression/04-mutex_42-trylock_2mutex.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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:25:21,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:25:21,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:25:21,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:25:21,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:25:21,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:25:21,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:25:21,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:25:21,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:25:21,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:25:21,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:25:21,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:25:21,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:25:21,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:25:21,533 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:25:21,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:25:21,534 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:25:21,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:25:21,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:25:21,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:25:21,535 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:25:21,535 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:25:21,536 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:25:21,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:25:21,536 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:25:21,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:25:21,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:25:21,537 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:25:21,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:25:21,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:25:21,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:25:21,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:25:21,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:25:21,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:25:21,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:25:21,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:25:21,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:25:21,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:25:21,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:25:21,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:25:21,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:25:21,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:25:21,540 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2024-11-17 03:25:21,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:25:21,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:25:21,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:25:21,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:25:21,822 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:25:21,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2024-11-17 03:25:23,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:25:23,525 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:25:23,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2024-11-17 03:25:23,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6afff3ca/6597cec5fd7444e7b9532a4a3de2ee2d/FLAG6c91dd00b [2024-11-17 03:25:23,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6afff3ca/6597cec5fd7444e7b9532a4a3de2ee2d [2024-11-17 03:25:23,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:25:23,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:25:23,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:25:23,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:25:23,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:25:23,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:25:23" (1/1) ... [2024-11-17 03:25:23,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e4bba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:23, skipping insertion in model container [2024-11-17 03:25:23,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:25:23" (1/1) ... [2024-11-17 03:25:23,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:25:24,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:25:24,315 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:25:24,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:25:24,414 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:25:24,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24 WrapperNode [2024-11-17 03:25:24,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:25:24,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:25:24,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:25:24,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:25:24,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,465 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-17 03:25:24,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:25:24,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:25:24,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:25:24,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:25:24,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,490 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [5, 5]. The 0 writes are split as follows [0, 0]. [2024-11-17 03:25:24,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:25:24,505 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:25:24,505 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:25:24,505 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:25:24,506 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (1/1) ... [2024-11-17 03:25:24,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:25:24,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:25:24,542 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) [2024-11-17 03:25:24,543 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 [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 03:25:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:25:24,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:25:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 03:25:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:25:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:25:24,584 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:25:24,709 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:25:24,710 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:25:24,879 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:25:24,880 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:25:24,994 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:25:24,994 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:25:24,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:25:24 BoogieIcfgContainer [2024-11-17 03:25:24,995 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:25:24,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:25:24,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:25:25,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:25:25,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:25:23" (1/3) ... [2024-11-17 03:25:25,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53be9831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:25:25, skipping insertion in model container [2024-11-17 03:25:25,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:25:24" (2/3) ... [2024-11-17 03:25:25,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53be9831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:25:25, skipping insertion in model container [2024-11-17 03:25:25,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:25:24" (3/3) ... [2024-11-17 03:25:25,004 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2024-11-17 03:25:25,017 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:25:25,017 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-17 03:25:25,017 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:25:25,049 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 03:25:25,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 33 transitions, 73 flow [2024-11-17 03:25:25,111 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-17 03:25:25,111 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 03:25:25,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 32 events. 2/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-11-17 03:25:25,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 33 transitions, 73 flow [2024-11-17 03:25:25,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 31 transitions, 68 flow [2024-11-17 03:25:25,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:25:25,139 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;@5e99b2ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:25:25,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 03:25:25,151 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:25:25,151 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-11-17 03:25:25,151 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 03:25:25,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:25:25,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:25:25,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-17 03:25:25,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:25:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1143031037, now seen corresponding path program 1 times [2024-11-17 03:25:25,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:25:25,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170127494] [2024-11-17 03:25:25,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:25:25,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:25:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:25:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:25:25,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:25:25,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170127494] [2024-11-17 03:25:25,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170127494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:25:25,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:25:25,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:25:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739171237] [2024-11-17 03:25:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:25:25,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:25:25,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:25:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:25:25,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:25:25,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-17 03:25:25,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:25,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:25:25,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-17 03:25:25,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:25:25,512 INFO L124 PetriNetUnfolderBase]: 71/190 cut-off events. [2024-11-17 03:25:25,513 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 03:25:25,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 190 events. 71/190 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 768 event pairs, 63 based on Foata normal form. 13/190 useless extension candidates. Maximal degree in co-relation 333. Up to 153 conditions per place. [2024-11-17 03:25:25,518 INFO L140 encePairwiseOnDemand]: 32/33 looper letters, 20 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2024-11-17 03:25:25,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 106 flow [2024-11-17 03:25:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:25:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:25:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 43 transitions. [2024-11-17 03:25:25,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-11-17 03:25:25,531 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 68 flow. Second operand 2 states and 43 transitions. [2024-11-17 03:25:25,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 106 flow [2024-11-17 03:25:25,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:25:25,535 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 62 flow [2024-11-17 03:25:25,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2024-11-17 03:25:25,541 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-17 03:25:25,542 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 62 flow [2024-11-17 03:25:25,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:25,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:25:25,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:25:25,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:25:25,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-17 03:25:25,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:25:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash -890079227, now seen corresponding path program 1 times [2024-11-17 03:25:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:25:25,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491749072] [2024-11-17 03:25:25,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:25:25,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:25:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:25:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:25:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:25:25,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491749072] [2024-11-17 03:25:25,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491749072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:25:25,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:25:25,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:25:25,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079157328] [2024-11-17 03:25:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:25:25,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:25:25,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:25:25,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:25:25,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:25:25,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-17 03:25:25,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:25,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:25:25,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-17 03:25:25,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:25:25,895 INFO L124 PetriNetUnfolderBase]: 55/172 cut-off events. [2024-11-17 03:25:25,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:25:25,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 172 events. 55/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 712 event pairs, 20 based on Foata normal form. 9/169 useless extension candidates. Maximal degree in co-relation 307. Up to 78 conditions per place. [2024-11-17 03:25:25,902 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 25 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2024-11-17 03:25:25,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 43 transitions, 154 flow [2024-11-17 03:25:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:25:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:25:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-17 03:25:25,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-17 03:25:25,905 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 62 flow. Second operand 3 states and 69 transitions. [2024-11-17 03:25:25,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 43 transitions, 154 flow [2024-11-17 03:25:25,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:25:25,909 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 106 flow [2024-11-17 03:25:25,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2024-11-17 03:25:25,911 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-17 03:25:25,912 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 106 flow [2024-11-17 03:25:25,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:25,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:25:25,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:25:25,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:25:25,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-17 03:25:25,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:25:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 939499369, now seen corresponding path program 2 times [2024-11-17 03:25:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:25:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278379560] [2024-11-17 03:25:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:25:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:25:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:25:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:25:26,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:25:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278379560] [2024-11-17 03:25:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278379560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:25:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:25:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:25:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348887571] [2024-11-17 03:25:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:25:26,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:25:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:25:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:25:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:25:26,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-17 03:25:26,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:26,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:25:26,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-17 03:25:26,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:25:26,069 INFO L124 PetriNetUnfolderBase]: 53/164 cut-off events. [2024-11-17 03:25:26,069 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-17 03:25:26,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 164 events. 53/164 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 662 event pairs, 44 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 380. Up to 134 conditions per place. [2024-11-17 03:25:26,070 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-11-17 03:25:26,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 154 flow [2024-11-17 03:25:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:25:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:25:26,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-11-17 03:25:26,074 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2024-11-17 03:25:26,074 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 106 flow. Second operand 3 states and 51 transitions. [2024-11-17 03:25:26,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 154 flow [2024-11-17 03:25:26,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:25:26,077 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-11-17 03:25:26,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-11-17 03:25:26,078 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-17 03:25:26,078 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-11-17 03:25:26,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:25:26,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-17 03:25:26,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-17 03:25:26,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:25:26,082 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-17 03:25:26,085 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:25:26,086 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:25:26,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:25:26 BasicIcfg [2024-11-17 03:25:26,091 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:25:26,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:25:26,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:25:26,093 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:25:26,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:25:24" (3/4) ... [2024-11-17 03:25:26,096 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:25:26,100 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-17 03:25:26,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-17 03:25:26,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-17 03:25:26,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 03:25:26,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 03:25:26,188 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:25:26,189 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:25:26,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:25:26,190 INFO L158 Benchmark]: Toolchain (without parser) took 2334.65ms. Allocated memory is still 188.7MB. Free memory was 115.9MB in the beginning and 135.6MB in the end (delta: -19.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:25:26,192 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 188.7MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:25:26,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.58ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 148.2MB in the end (delta: -32.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-11-17 03:25:26,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.52ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:25:26,193 INFO L158 Benchmark]: Boogie Preprocessor took 37.49ms. Allocated memory is still 188.7MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:25:26,193 INFO L158 Benchmark]: IcfgBuilder took 490.59ms. Allocated memory is still 188.7MB. Free memory was 144.0MB in the beginning and 121.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 03:25:26,193 INFO L158 Benchmark]: TraceAbstraction took 1093.92ms. Allocated memory is still 188.7MB. Free memory was 120.0MB in the beginning and 140.8MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:25:26,193 INFO L158 Benchmark]: Witness Printer took 97.22ms. Allocated memory is still 188.7MB. Free memory was 139.8MB in the beginning and 135.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:25:26,197 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 188.7MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.58ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 148.2MB in the end (delta: -32.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.52ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.49ms. Allocated memory is still 188.7MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 490.59ms. Allocated memory is still 188.7MB. Free memory was 144.0MB in the beginning and 121.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1093.92ms. Allocated memory is still 188.7MB. Free memory was 120.0MB in the beginning and 140.8MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.22ms. Allocated memory is still 188.7MB. Free memory was 139.8MB in the beginning and 135.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: 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, 43 locations, 2 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=2, InterpolantAutomatonStates: 8, 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, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 03:25:26,228 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