./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe037.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc 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/pthread-wmm/safe037.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 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:35:23,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:35:23,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:35:23,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:35:23,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:35:23,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:35:23,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:35:23,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:35:23,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:35:23,862 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:35:23,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:35:23,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:35:23,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:35:23,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:35:23,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:35:23,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:35:23,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:35:23,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:35:23,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:35:23,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:35:23,869 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:35:23,869 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:35:23,870 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:35:23,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:35:23,870 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:35:23,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:35:23,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:35:23,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:35:23,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:35:23,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:35:23,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:35:23,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:35:23,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:35:23,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:35:23,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:35:23,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:35:23,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:35:23,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:35:23,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:35:23,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:35:23,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:35:23,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:35:23,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 [2024-11-19 09:35:24,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:35:24,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:35:24,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:35:24,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:35:24,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:35:24,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037.i [2024-11-19 09:35:25,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:35:25,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:35:25,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037.i [2024-11-19 09:35:25,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fa9da12c/947791d426e44fc9aac27acaf24675e2/FLAG5c9af1f8c [2024-11-19 09:35:25,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fa9da12c/947791d426e44fc9aac27acaf24675e2 [2024-11-19 09:35:25,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:35:25,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:35:25,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:35:25,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:35:25,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:35:25,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:35:25" (1/1) ... [2024-11-19 09:35:25,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69418d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:25, skipping insertion in model container [2024-11-19 09:35:25,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:35:25" (1/1) ... [2024-11-19 09:35:26,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:35:26,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:35:26,351 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:35:26,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:35:26,506 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:35:26,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26 WrapperNode [2024-11-19 09:35:26,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:35:26,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:35:26,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:35:26,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:35:26,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,547 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2024-11-19 09:35:26,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:35:26,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:35:26,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:35:26,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:35:26,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,574 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 09:35:26,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:35:26,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:35:26,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:35:26,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:35:26,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:35:26,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:35:26,639 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) [2024-11-19 09:35:26,643 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 [2024-11-19 09:35:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:35:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:35:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 09:35:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 09:35:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 09:35:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 09:35:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 09:35:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 09:35:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:35:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:35:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:35:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:35:26,699 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:35:26,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:35:26,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:35:26,958 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:35:26,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:35:27,050 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:35:27,050 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:35:27,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27 BoogieIcfgContainer [2024-11-19 09:35:27,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:35:27,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:35:27,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:35:27,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:35:27,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:35:25" (1/3) ... [2024-11-19 09:35:27,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b23c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:35:27, skipping insertion in model container [2024-11-19 09:35:27,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26" (2/3) ... [2024-11-19 09:35:27,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b23c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:35:27, skipping insertion in model container [2024-11-19 09:35:27,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27" (3/3) ... [2024-11-19 09:35:27,062 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037.i [2024-11-19 09:35:27,080 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:35:27,082 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:35:27,082 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:35:27,135 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:35:27,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2024-11-19 09:35:27,195 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-19 09:35:27,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:27,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-19 09:35:27,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2024-11-19 09:35:27,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 42 transitions, 93 flow [2024-11-19 09:35:27,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:35:27,222 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;@2b00ba26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:35:27,223 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-19 09:35:27,236 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:35:27,236 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-19 09:35:27,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:27,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:27,237 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:27,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:27,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2121005975, now seen corresponding path program 1 times [2024-11-19 09:35:27,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:27,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129818967] [2024-11-19 09:35:27,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:27,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129818967] [2024-11-19 09:35:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129818967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:27,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:27,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:35:27,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524595727] [2024-11-19 09:35:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:27,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:35:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:35:27,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:35:27,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 46 [2024-11-19 09:35:27,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 09:35:27,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:27,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 46 [2024-11-19 09:35:27,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:27,737 INFO L124 PetriNetUnfolderBase]: 75/226 cut-off events. [2024-11-19 09:35:27,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:27,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 226 events. 75/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1223 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 370. Up to 136 conditions per place. [2024-11-19 09:35:27,744 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 12 selfloop transitions, 1 changer transitions 1/38 dead transitions. [2024-11-19 09:35:27,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 113 flow [2024-11-19 09:35:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:35:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:35:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-11-19 09:35:27,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7101449275362319 [2024-11-19 09:35:27,763 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 93 flow. Second operand 3 states and 98 transitions. [2024-11-19 09:35:27,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 113 flow [2024-11-19 09:35:27,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:35:27,771 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 82 flow [2024-11-19 09:35:27,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-11-19 09:35:27,778 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2024-11-19 09:35:27,778 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 82 flow [2024-11-19 09:35:27,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 09:35:27,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:27,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:27,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:35:27,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:27,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2121007646, now seen corresponding path program 1 times [2024-11-19 09:35:27,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:27,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456381498] [2024-11-19 09:35:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:27,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:28,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:28,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456381498] [2024-11-19 09:35:28,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456381498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:28,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:28,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:35:28,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114201621] [2024-11-19 09:35:28,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:28,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:35:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:35:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:35:28,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 46 [2024-11-19 09:35:28,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-19 09:35:28,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:28,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 46 [2024-11-19 09:35:28,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:28,336 INFO L124 PetriNetUnfolderBase]: 342/697 cut-off events. [2024-11-19 09:35:28,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:28,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 697 events. 342/697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3894 event pairs, 58 based on Foata normal form. 27/714 useless extension candidates. Maximal degree in co-relation 1273. Up to 309 conditions per place. [2024-11-19 09:35:28,346 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 26 selfloop transitions, 5 changer transitions 1/52 dead transitions. [2024-11-19 09:35:28,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 180 flow [2024-11-19 09:35:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:35:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:35:28,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-19 09:35:28,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7065217391304348 [2024-11-19 09:35:28,348 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 82 flow. Second operand 4 states and 130 transitions. [2024-11-19 09:35:28,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 180 flow [2024-11-19 09:35:28,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:35:28,351 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 115 flow [2024-11-19 09:35:28,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-11-19 09:35:28,352 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2024-11-19 09:35:28,352 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 115 flow [2024-11-19 09:35:28,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-19 09:35:28,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:28,353 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] [2024-11-19 09:35:28,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:35:28,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:28,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:28,354 INFO L85 PathProgramCache]: Analyzing trace with hash -730143063, now seen corresponding path program 1 times [2024-11-19 09:35:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280914077] [2024-11-19 09:35:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:28,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:28,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280914077] [2024-11-19 09:35:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280914077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:28,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:28,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:35:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928644478] [2024-11-19 09:35:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:28,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:35:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:35:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:35:28,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 46 [2024-11-19 09:35:28,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2024-11-19 09:35:28,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:28,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 46 [2024-11-19 09:35:28,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:28,733 INFO L124 PetriNetUnfolderBase]: 285/585 cut-off events. [2024-11-19 09:35:28,734 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2024-11-19 09:35:28,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 585 events. 285/585 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2989 event pairs, 15 based on Foata normal form. 26/603 useless extension candidates. Maximal degree in co-relation 1323. Up to 225 conditions per place. [2024-11-19 09:35:28,743 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 32 selfloop transitions, 8 changer transitions 1/61 dead transitions. [2024-11-19 09:35:28,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 61 transitions, 260 flow [2024-11-19 09:35:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:35:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:35:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 163 transitions. [2024-11-19 09:35:28,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7086956521739131 [2024-11-19 09:35:28,748 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 115 flow. Second operand 5 states and 163 transitions. [2024-11-19 09:35:28,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 61 transitions, 260 flow [2024-11-19 09:35:28,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 61 transitions, 250 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-19 09:35:28,752 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 155 flow [2024-11-19 09:35:28,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2024-11-19 09:35:28,753 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 4 predicate places. [2024-11-19 09:35:28,753 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 155 flow [2024-11-19 09:35:28,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2024-11-19 09:35:28,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:28,755 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, 1, 1] [2024-11-19 09:35:28,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:35:28,755 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:28,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1674322978, now seen corresponding path program 1 times [2024-11-19 09:35:28,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:28,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747849925] [2024-11-19 09:35:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:28,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:28,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:28,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747849925] [2024-11-19 09:35:28,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747849925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:28,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:28,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:35:28,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760923240] [2024-11-19 09:35:28,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:28,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:28,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:28,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 46 [2024-11-19 09:35:28,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-11-19 09:35:28,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:28,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 46 [2024-11-19 09:35:28,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:29,449 INFO L124 PetriNetUnfolderBase]: 851/1730 cut-off events. [2024-11-19 09:35:29,449 INFO L125 PetriNetUnfolderBase]: For 570/639 co-relation queries the response was YES. [2024-11-19 09:35:29,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3748 conditions, 1730 events. 851/1730 cut-off events. For 570/639 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11202 event pairs, 169 based on Foata normal form. 13/1616 useless extension candidates. Maximal degree in co-relation 3737. Up to 564 conditions per place. [2024-11-19 09:35:29,462 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 42 selfloop transitions, 7 changer transitions 27/100 dead transitions. [2024-11-19 09:35:29,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 100 transitions, 437 flow [2024-11-19 09:35:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 09:35:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 09:35:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 320 transitions. [2024-11-19 09:35:29,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6324110671936759 [2024-11-19 09:35:29,468 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 155 flow. Second operand 11 states and 320 transitions. [2024-11-19 09:35:29,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 100 transitions, 437 flow [2024-11-19 09:35:29,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 100 transitions, 411 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 09:35:29,477 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 193 flow [2024-11-19 09:35:29,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=193, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-11-19 09:35:29,478 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2024-11-19 09:35:29,479 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 193 flow [2024-11-19 09:35:29,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-11-19 09:35:29,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:29,480 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, 1, 1] [2024-11-19 09:35:29,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:35:29,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:29,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -961474492, now seen corresponding path program 2 times [2024-11-19 09:35:29,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:29,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315798385] [2024-11-19 09:35:29,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:35:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:29,499 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:35:29,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:35:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:29,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315798385] [2024-11-19 09:35:29,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315798385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:29,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:29,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:35:29,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986965625] [2024-11-19 09:35:29,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:29,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:29,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:29,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:29,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:29,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 46 [2024-11-19 09:35:29,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:29,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:29,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 46 [2024-11-19 09:35:29,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:29,810 INFO L124 PetriNetUnfolderBase]: 428/816 cut-off events. [2024-11-19 09:35:29,810 INFO L125 PetriNetUnfolderBase]: For 543/872 co-relation queries the response was YES. [2024-11-19 09:35:29,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2141 conditions, 816 events. 428/816 cut-off events. For 543/872 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3930 event pairs, 22 based on Foata normal form. 88/849 useless extension candidates. Maximal degree in co-relation 2125. Up to 328 conditions per place. [2024-11-19 09:35:29,817 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 31 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2024-11-19 09:35:29,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 313 flow [2024-11-19 09:35:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:35:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:35:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2024-11-19 09:35:29,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6811594202898551 [2024-11-19 09:35:29,819 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 193 flow. Second operand 6 states and 188 transitions. [2024-11-19 09:35:29,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 313 flow [2024-11-19 09:35:29,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 301 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-19 09:35:29,822 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 213 flow [2024-11-19 09:35:29,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=64, PETRI_TRANSITIONS=47} [2024-11-19 09:35:29,823 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 14 predicate places. [2024-11-19 09:35:29,824 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 213 flow [2024-11-19 09:35:29,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:29,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:29,824 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:29,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:35:29,825 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:29,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:29,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1456478529, now seen corresponding path program 1 times [2024-11-19 09:35:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:29,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065818706] [2024-11-19 09:35:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:30,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:30,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065818706] [2024-11-19 09:35:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065818706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:30,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:35:30,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010497066] [2024-11-19 09:35:30,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:30,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:30,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:30,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:30,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 46 [2024-11-19 09:35:30,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:30,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:30,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 46 [2024-11-19 09:35:30,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:30,247 INFO L124 PetriNetUnfolderBase]: 506/1140 cut-off events. [2024-11-19 09:35:30,248 INFO L125 PetriNetUnfolderBase]: For 1232/1301 co-relation queries the response was YES. [2024-11-19 09:35:30,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3058 conditions, 1140 events. 506/1140 cut-off events. For 1232/1301 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7407 event pairs, 140 based on Foata normal form. 11/1016 useless extension candidates. Maximal degree in co-relation 3042. Up to 296 conditions per place. [2024-11-19 09:35:30,257 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 19 selfloop transitions, 1 changer transitions 20/69 dead transitions. [2024-11-19 09:35:30,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 69 transitions, 360 flow [2024-11-19 09:35:30,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:35:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:35:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-11-19 09:35:30,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-19 09:35:30,259 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 213 flow. Second operand 7 states and 207 transitions. [2024-11-19 09:35:30,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 69 transitions, 360 flow [2024-11-19 09:35:30,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 324 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-19 09:35:30,265 INFO L231 Difference]: Finished difference. Result has 69 places, 46 transitions, 189 flow [2024-11-19 09:35:30,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=189, PETRI_PLACES=69, PETRI_TRANSITIONS=46} [2024-11-19 09:35:30,266 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 19 predicate places. [2024-11-19 09:35:30,266 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 46 transitions, 189 flow [2024-11-19 09:35:30,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:30,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:30,267 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:30,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:35:30,268 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 09:35:30,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:30,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1808906175, now seen corresponding path program 2 times [2024-11-19 09:35:30,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:30,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302023541] [2024-11-19 09:35:30,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:35:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:30,280 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:35:30,281 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:35:30,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:30,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:30,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302023541] [2024-11-19 09:35:30,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302023541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:30,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:30,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:35:30,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494787772] [2024-11-19 09:35:30,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:30,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:30,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:30,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 46 [2024-11-19 09:35:30,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 46 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:30,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:30,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 46 [2024-11-19 09:35:30,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:30,639 INFO L124 PetriNetUnfolderBase]: 378/950 cut-off events. [2024-11-19 09:35:30,639 INFO L125 PetriNetUnfolderBase]: For 540/550 co-relation queries the response was YES. [2024-11-19 09:35:30,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 950 events. 378/950 cut-off events. For 540/550 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6254 event pairs, 88 based on Foata normal form. 10/863 useless extension candidates. Maximal degree in co-relation 2326. Up to 250 conditions per place. [2024-11-19 09:35:30,645 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-11-19 09:35:30,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 303 flow [2024-11-19 09:35:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:35:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:35:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2024-11-19 09:35:30,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6485507246376812 [2024-11-19 09:35:30,647 INFO L175 Difference]: Start difference. First operand has 69 places, 46 transitions, 189 flow. Second operand 6 states and 179 transitions. [2024-11-19 09:35:30,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 303 flow [2024-11-19 09:35:30,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 62 transitions, 280 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-19 09:35:30,651 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-19 09:35:30,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-19 09:35:30,653 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 10 predicate places. [2024-11-19 09:35:30,653 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-19 09:35:30,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-19 09:35:30,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-19 09:35:30,658 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-19 09:35:30,659 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-19 09:35:30,659 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-19 09:35:30,659 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-19 09:35:30,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:35:30,660 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-11-19 09:35:30,667 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:35:30,668 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:35:30,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:35:30 BasicIcfg [2024-11-19 09:35:30,673 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:35:30,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:35:30,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:35:30,674 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:35:30,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27" (3/4) ... [2024-11-19 09:35:30,677 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:35:30,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 09:35:30,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 09:35:30,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-19 09:35:30,687 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-19 09:35:30,688 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-19 09:35:30,688 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 09:35:30,688 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 09:35:30,785 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:35:30,788 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:35:30,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:35:30,789 INFO L158 Benchmark]: Toolchain (without parser) took 4849.28ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 90.0MB in the beginning and 150.8MB in the end (delta: -60.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:35:30,789 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:35:30,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.34ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 125.6MB in the end (delta: -35.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 09:35:30,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.30ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 123.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:35:30,790 INFO L158 Benchmark]: Boogie Preprocessor took 47.81ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 121.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:35:30,790 INFO L158 Benchmark]: RCFGBuilder took 454.09ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 101.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 09:35:30,790 INFO L158 Benchmark]: TraceAbstraction took 3620.09ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 100.7MB in the beginning and 155.0MB in the end (delta: -54.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:35:30,791 INFO L158 Benchmark]: Witness Printer took 114.69ms. Allocated memory is still 207.6MB. Free memory was 155.0MB in the beginning and 150.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:35:30,792 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.34ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 125.6MB in the end (delta: -35.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.30ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 123.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.81ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 121.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.09ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 101.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3620.09ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 100.7MB in the beginning and 155.0MB in the end (delta: -54.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 114.69ms. Allocated memory is still 207.6MB. Free memory was 155.0MB in the beginning and 150.8MB 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: 784]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 35 mSDtfsCounter, 590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=5, InterpolantAutomatonStates: 42, 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, 1.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:35:30,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE