./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:14:50,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:14:50,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 01:14:50,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:14:50,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:14:50,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:14:50,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:14:50,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:14:50,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:14:50,396 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:14:50,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:14:50,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:14:50,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:14:50,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:14:50,396 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:14:50,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:14:50,397 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:14:50,398 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:14:50,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:14:50,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:14:50,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:14:50,399 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2025-01-10 01:14:50,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:14:50,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:14:50,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:14:50,664 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:14:50,665 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:14:50,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-01-10 01:14:51,788 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c6987da/942bc6c78bd74791ac469f35a2b78ee6/FLAGa8142d9ee [2025-01-10 01:14:52,070 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:14:52,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-01-10 01:14:52,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c6987da/942bc6c78bd74791ac469f35a2b78ee6/FLAGa8142d9ee [2025-01-10 01:14:52,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c6987da/942bc6c78bd74791ac469f35a2b78ee6 [2025-01-10 01:14:52,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:14:52,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:14:52,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:14:52,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:14:52,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:14:52,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e995577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52, skipping insertion in model container [2025-01-10 01:14:52,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:14:52,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:14:52,696 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:14:52,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:14:52,777 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:14:52,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52 WrapperNode [2025-01-10 01:14:52,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:14:52,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:14:52,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:14:52,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:14:52,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,819 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-01-10 01:14:52,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:14:52,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:14:52,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:14:52,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:14:52,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,841 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2025-01-10 01:14:52,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:14:52,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:14:52,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:14:52,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:14:52,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (1/1) ... [2025-01-10 01:14:52,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:14:52,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:14:52,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 01:14:52,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 01:14:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 01:14:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 01:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 01:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 01:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 01:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 01:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:14:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:14:52,904 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 01:14:53,021 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:14:53,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:14:53,285 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 01:14:53,285 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:14:53,990 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:14:53,990 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:14:53,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:14:53 BoogieIcfgContainer [2025-01-10 01:14:53,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:14:53,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:14:53,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:14:53,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:14:53,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:14:52" (1/3) ... [2025-01-10 01:14:53,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f7445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:14:53, skipping insertion in model container [2025-01-10 01:14:53,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:14:52" (2/3) ... [2025-01-10 01:14:53,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f7445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:14:53, skipping insertion in model container [2025-01-10 01:14:53,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:14:53" (3/3) ... [2025-01-10 01:14:54,000 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2025-01-10 01:14:54,014 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:14:54,015 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 37 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2025-01-10 01:14:54,015 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 01:14:54,067 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 01:14:54,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2025-01-10 01:14:54,138 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2025-01-10 01:14:54,139 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 01:14:54,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2025-01-10 01:14:54,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2025-01-10 01:14:54,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2025-01-10 01:14:54,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:14:54,168 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;@673c5ca1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:14:54,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 01:14:54,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 01:14:54,200 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2025-01-10 01:14:54,200 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 01:14:54,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:54,201 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:54,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:54,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash -266584795, now seen corresponding path program 1 times [2025-01-10 01:14:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:54,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313859307] [2025-01-10 01:14:54,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:54,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 01:14:54,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 01:14:54,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:54,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:54,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:54,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313859307] [2025-01-10 01:14:54,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313859307] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:54,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:14:54,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:14:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751428263] [2025-01-10 01:14:54,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:54,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:14:54,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:54,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:14:54,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:14:54,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-01-10 01:14:54,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:54,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:54,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-01-10 01:14:54,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:55,031 INFO L124 PetriNetUnfolderBase]: 441/787 cut-off events. [2025-01-10 01:14:55,032 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2025-01-10 01:14:55,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 787 events. 441/787 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3709 event pairs, 173 based on Foata normal form. 20/778 useless extension candidates. Maximal degree in co-relation 1442. Up to 419 conditions per place. [2025-01-10 01:14:55,042 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2025-01-10 01:14:55,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2025-01-10 01:14:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:14:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:14:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-01-10 01:14:55,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2025-01-10 01:14:55,055 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2025-01-10 01:14:55,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2025-01-10 01:14:55,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 01:14:55,063 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2025-01-10 01:14:55,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2025-01-10 01:14:55,069 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2025-01-10 01:14:55,069 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2025-01-10 01:14:55,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:55,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:55,070 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:55,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:14:55,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:55,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash 144936413, now seen corresponding path program 1 times [2025-01-10 01:14:55,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:55,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677707572] [2025-01-10 01:14:55,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:55,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:55,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:14:55,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:14:55,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:55,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 01:14:55,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677707572] [2025-01-10 01:14:55,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677707572] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:55,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:14:55,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:14:55,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363983328] [2025-01-10 01:14:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:55,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:14:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:55,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:14:55,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:14:55,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-01-10 01:14:55,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:55,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:55,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-01-10 01:14:55,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:55,490 INFO L124 PetriNetUnfolderBase]: 744/1328 cut-off events. [2025-01-10 01:14:55,490 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2025-01-10 01:14:55,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2620 conditions, 1328 events. 744/1328 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6791 event pairs, 301 based on Foata normal form. 29/1321 useless extension candidates. Maximal degree in co-relation 992. Up to 700 conditions per place. [2025-01-10 01:14:55,497 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-01-10 01:14:55,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2025-01-10 01:14:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:14:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:14:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-01-10 01:14:55,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-01-10 01:14:55,498 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2025-01-10 01:14:55,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2025-01-10 01:14:55,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:14:55,500 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2025-01-10 01:14:55,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2025-01-10 01:14:55,500 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2025-01-10 01:14:55,500 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2025-01-10 01:14:55,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:55,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:55,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:55,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:14:55,501 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:55,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:55,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1150202509, now seen corresponding path program 1 times [2025-01-10 01:14:55,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:55,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557325265] [2025-01-10 01:14:55,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:55,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:14:55,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:14:55,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:55,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:55,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557325265] [2025-01-10 01:14:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557325265] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:55,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:14:55,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:14:55,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117618144] [2025-01-10 01:14:55,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:55,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:14:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:55,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:14:55,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:14:55,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-01-10 01:14:55,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:55,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:55,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-01-10 01:14:55,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:55,954 INFO L124 PetriNetUnfolderBase]: 428/900 cut-off events. [2025-01-10 01:14:55,954 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2025-01-10 01:14:55,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 900 events. 428/900 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4338 event pairs, 182 based on Foata normal form. 64/958 useless extension candidates. Maximal degree in co-relation 629. Up to 373 conditions per place. [2025-01-10 01:14:55,960 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2025-01-10 01:14:55,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2025-01-10 01:14:55,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:14:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:14:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-01-10 01:14:55,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2025-01-10 01:14:55,962 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2025-01-10 01:14:55,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2025-01-10 01:14:55,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:14:55,963 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2025-01-10 01:14:55,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2025-01-10 01:14:55,964 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2025-01-10 01:14:55,964 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2025-01-10 01:14:55,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:55,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:55,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:55,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 01:14:55,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:55,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:55,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1887626845, now seen corresponding path program 2 times [2025-01-10 01:14:55,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:55,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99534365] [2025-01-10 01:14:55,965 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:14:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:56,212 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:14:56,226 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:14:56,226 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 01:14:56,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:56,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:56,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99534365] [2025-01-10 01:14:56,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99534365] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:56,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:14:56,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:14:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814293895] [2025-01-10 01:14:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:56,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:14:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:56,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:14:56,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:14:56,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-01-10 01:14:56,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:56,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:56,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-01-10 01:14:56,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:56,501 INFO L124 PetriNetUnfolderBase]: 624/1308 cut-off events. [2025-01-10 01:14:56,502 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2025-01-10 01:14:56,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 1308 events. 624/1308 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6870 event pairs, 183 based on Foata normal form. 30/1329 useless extension candidates. Maximal degree in co-relation 777. Up to 476 conditions per place. [2025-01-10 01:14:56,509 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 58 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2025-01-10 01:14:56,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 74 transitions, 358 flow [2025-01-10 01:14:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:14:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 01:14:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-01-10 01:14:56,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6918604651162791 [2025-01-10 01:14:56,512 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 4 states and 119 transitions. [2025-01-10 01:14:56,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 74 transitions, 358 flow [2025-01-10 01:14:56,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 74 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:14:56,515 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 122 flow [2025-01-10 01:14:56,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2025-01-10 01:14:56,515 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2025-01-10 01:14:56,515 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 122 flow [2025-01-10 01:14:56,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:56,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:56,516 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:56,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 01:14:56,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:56,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:56,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1429617775, now seen corresponding path program 3 times [2025-01-10 01:14:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:56,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447989320] [2025-01-10 01:14:56,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:14:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:56,713 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 3 equivalence classes. [2025-01-10 01:14:56,719 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 32 statements. [2025-01-10 01:14:56,719 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 01:14:56,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-10 01:14:56,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:56,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447989320] [2025-01-10 01:14:56,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447989320] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:56,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:14:56,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:14:56,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634397214] [2025-01-10 01:14:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:56,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:14:56,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:56,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:14:56,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:14:56,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-01-10 01:14:56,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:56,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:56,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-01-10 01:14:56,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:56,892 INFO L124 PetriNetUnfolderBase]: 643/1317 cut-off events. [2025-01-10 01:14:56,894 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2025-01-10 01:14:56,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3089 conditions, 1317 events. 643/1317 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6842 event pairs, 398 based on Foata normal form. 1/1304 useless extension candidates. Maximal degree in co-relation 967. Up to 966 conditions per place. [2025-01-10 01:14:56,901 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 38 selfloop transitions, 1 changer transitions 0/51 dead transitions. [2025-01-10 01:14:56,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 249 flow [2025-01-10 01:14:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:14:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:14:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-01-10 01:14:56,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-01-10 01:14:56,902 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 122 flow. Second operand 3 states and 77 transitions. [2025-01-10 01:14:56,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 249 flow [2025-01-10 01:14:56,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 237 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-01-10 01:14:56,904 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 116 flow [2025-01-10 01:14:56,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2025-01-10 01:14:56,904 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2025-01-10 01:14:56,904 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 116 flow [2025-01-10 01:14:56,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:56,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:56,905 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:56,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 01:14:56,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:56,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1614894892, now seen corresponding path program 1 times [2025-01-10 01:14:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:56,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60030456] [2025-01-10 01:14:56,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:57,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:14:57,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:14:57,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:57,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:57,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:57,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60030456] [2025-01-10 01:14:57,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60030456] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:14:57,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431128421] [2025-01-10 01:14:57,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:57,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:14:57,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:14:57,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:14:57,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 01:14:57,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:14:57,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:14:57,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:57,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:57,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 01:14:57,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:14:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 01:14:57,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:14:57,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431128421] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:14:57,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:14:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2025-01-10 01:14:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707268795] [2025-01-10 01:14:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:14:57,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:14:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:57,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:14:57,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:14:57,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-01-10 01:14:57,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:57,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:57,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-01-10 01:14:57,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:57,665 INFO L124 PetriNetUnfolderBase]: 640/1315 cut-off events. [2025-01-10 01:14:57,665 INFO L125 PetriNetUnfolderBase]: For 387/387 co-relation queries the response was YES. [2025-01-10 01:14:57,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3041 conditions, 1315 events. 640/1315 cut-off events. For 387/387 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6841 event pairs, 454 based on Foata normal form. 1/1302 useless extension candidates. Maximal degree in co-relation 2695. Up to 1074 conditions per place. [2025-01-10 01:14:57,670 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 26 selfloop transitions, 1 changer transitions 2/38 dead transitions. [2025-01-10 01:14:57,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 168 flow [2025-01-10 01:14:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:14:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:14:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-01-10 01:14:57,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2025-01-10 01:14:57,672 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 116 flow. Second operand 3 states and 67 transitions. [2025-01-10 01:14:57,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 168 flow [2025-01-10 01:14:57,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 167 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:14:57,673 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 111 flow [2025-01-10 01:14:57,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=111, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2025-01-10 01:14:57,674 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2025-01-10 01:14:57,674 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 111 flow [2025-01-10 01:14:57,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:57,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:57,674 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:57,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 01:14:57,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:14:57,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:57,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash 828027339, now seen corresponding path program 1 times [2025-01-10 01:14:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958280029] [2025-01-10 01:14:57,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:58,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:14:58,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:14:58,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:58,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:58,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:58,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958280029] [2025-01-10 01:14:58,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958280029] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:14:58,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239373731] [2025-01-10 01:14:58,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:14:58,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:14:58,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:14:58,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:14:58,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 01:14:58,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:14:58,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:14:58,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:14:58,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:58,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 01:14:58,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:14:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:58,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:14:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:14:58,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239373731] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:14:58,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:14:58,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-01-10 01:14:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655055617] [2025-01-10 01:14:58,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:14:58,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:14:58,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:58,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:14:58,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:14:58,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-01-10 01:14:58,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 111 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:58,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:58,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-01-10 01:14:58,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:14:58,764 INFO L124 PetriNetUnfolderBase]: 1427/2749 cut-off events. [2025-01-10 01:14:58,764 INFO L125 PetriNetUnfolderBase]: For 852/852 co-relation queries the response was YES. [2025-01-10 01:14:58,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6322 conditions, 2749 events. 1427/2749 cut-off events. For 852/852 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14810 event pairs, 163 based on Foata normal form. 123/2858 useless extension candidates. Maximal degree in co-relation 6312. Up to 532 conditions per place. [2025-01-10 01:14:58,777 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 91 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2025-01-10 01:14:58,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 105 transitions, 543 flow [2025-01-10 01:14:58,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:14:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 01:14:58,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions. [2025-01-10 01:14:58,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2025-01-10 01:14:58,778 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 111 flow. Second operand 6 states and 174 transitions. [2025-01-10 01:14:58,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 105 transitions, 543 flow [2025-01-10 01:14:58,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 105 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:14:58,783 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 150 flow [2025-01-10 01:14:58,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2025-01-10 01:14:58,784 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2025-01-10 01:14:58,784 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 150 flow [2025-01-10 01:14:58,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:58,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:14:58,784 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:14:58,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 01:14:58,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:14:58,986 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:14:58,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:14:58,987 INFO L85 PathProgramCache]: Analyzing trace with hash 770852247, now seen corresponding path program 2 times [2025-01-10 01:14:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:14:58,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426808192] [2025-01-10 01:14:58,987 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:14:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:14:59,183 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-01-10 01:14:59,207 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-01-10 01:14:59,207 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:14:59,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:14:59,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:14:59,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426808192] [2025-01-10 01:14:59,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426808192] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:14:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676584587] [2025-01-10 01:14:59,327 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:14:59,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:14:59,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:14:59,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:14:59,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 01:14:59,712 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-01-10 01:14:59,772 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-01-10 01:14:59,772 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:14:59,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:14:59,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 01:14:59,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:14:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:14:59,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:14:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:14:59,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676584587] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:14:59,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:14:59,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-01-10 01:14:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999622024] [2025-01-10 01:14:59,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:14:59,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:14:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:14:59,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:14:59,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:14:59,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2025-01-10 01:14:59,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:14:59,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:14:59,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2025-01-10 01:14:59,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:15:00,214 INFO L124 PetriNetUnfolderBase]: 1877/3656 cut-off events. [2025-01-10 01:15:00,214 INFO L125 PetriNetUnfolderBase]: For 2598/2598 co-relation queries the response was YES. [2025-01-10 01:15:00,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9035 conditions, 3656 events. 1877/3656 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 20983 event pairs, 206 based on Foata normal form. 112/3752 useless extension candidates. Maximal degree in co-relation 9022. Up to 718 conditions per place. [2025-01-10 01:15:00,232 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 100 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2025-01-10 01:15:00,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 115 transitions, 698 flow [2025-01-10 01:15:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:15:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 01:15:00,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2025-01-10 01:15:00,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2025-01-10 01:15:00,235 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 150 flow. Second operand 6 states and 177 transitions. [2025-01-10 01:15:00,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 115 transitions, 698 flow [2025-01-10 01:15:00,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 115 transitions, 658 flow, removed 15 selfloop flow, removed 1 redundant places. [2025-01-10 01:15:00,240 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 176 flow [2025-01-10 01:15:00,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2025-01-10 01:15:00,241 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2025-01-10 01:15:00,241 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 176 flow [2025-01-10 01:15:00,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:15:00,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:15:00,243 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:15:00,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 01:15:00,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:15:00,443 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-10 01:15:00,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:15:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash 365979257, now seen corresponding path program 3 times [2025-01-10 01:15:00,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:15:00,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398004236] [2025-01-10 01:15:00,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:15:00,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:15:00,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-01-10 01:15:00,645 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 57 of 63 statements. [2025-01-10 01:15:00,646 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-10 01:15:00,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:15:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:15:00,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:15:00,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398004236] [2025-01-10 01:15:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398004236] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:15:00,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773951269] [2025-01-10 01:15:00,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:15:00,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:15:00,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:15:00,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:15:00,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 01:15:01,332 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 63 statements into 5 equivalence classes. [2025-01-10 01:15:01,411 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 57 of 63 statements. [2025-01-10 01:15:01,411 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-10 01:15:01,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:15:01,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 01:15:01,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:15:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:15:01,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:15:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-10 01:15:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773951269] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:15:01,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:15:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 29 [2025-01-10 01:15:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298612382] [2025-01-10 01:15:01,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:15:01,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-01-10 01:15:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:15:01,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-01-10 01:15:01,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2025-01-10 01:15:01,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2025-01-10 01:15:01,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 176 flow. Second operand has 30 states, 30 states have (on average 16.0) internal successors, (480), 30 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:15:01,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:15:01,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2025-01-10 01:15:01,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:15:03,090 INFO L124 PetriNetUnfolderBase]: 1841/3600 cut-off events. [2025-01-10 01:15:03,091 INFO L125 PetriNetUnfolderBase]: For 3355/3355 co-relation queries the response was YES. [2025-01-10 01:15:03,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9509 conditions, 3600 events. 1841/3600 cut-off events. For 3355/3355 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 20587 event pairs, 98 based on Foata normal form. 56/3646 useless extension candidates. Maximal degree in co-relation 9493. Up to 659 conditions per place. [2025-01-10 01:15:03,100 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 172/172 dead transitions. [2025-01-10 01:15:03,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 172 transitions, 1187 flow [2025-01-10 01:15:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 01:15:03,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 01:15:03,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 293 transitions. [2025-01-10 01:15:03,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5678294573643411 [2025-01-10 01:15:03,102 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 176 flow. Second operand 12 states and 293 transitions. [2025-01-10 01:15:03,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 172 transitions, 1187 flow [2025-01-10 01:15:03,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 172 transitions, 1065 flow, removed 40 selfloop flow, removed 3 redundant places. [2025-01-10 01:15:03,107 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-01-10 01:15:03,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-01-10 01:15:03,107 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 22 predicate places. [2025-01-10 01:15:03,108 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-01-10 01:15:03,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 16.0) internal successors, (480), 30 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:15:03,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-01-10 01:15:03,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-01-10 01:15:03,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-10 01:15:03,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-10 01:15:03,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 01:15:03,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-10 01:15:03,311 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1] [2025-01-10 01:15:03,314 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 01:15:03,314 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 01:15:03,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:15:03 BasicIcfg [2025-01-10 01:15:03,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 01:15:03,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 01:15:03,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 01:15:03,319 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 01:15:03,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:14:53" (3/4) ... [2025-01-10 01:15:03,321 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 01:15:03,323 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-10 01:15:03,323 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-10 01:15:03,331 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 257 nodes and edges [2025-01-10 01:15:03,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-01-10 01:15:03,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 01:15:03,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 01:15:03,333 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 01:15:03,396 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 01:15:03,396 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 01:15:03,397 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 01:15:03,397 INFO L158 Benchmark]: Toolchain (without parser) took 11040.73ms. Allocated memory was 142.6MB in the beginning and 889.2MB in the end (delta: 746.6MB). Free memory was 105.5MB in the beginning and 668.4MB in the end (delta: -563.0MB). Peak memory consumption was 181.2MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,397 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:15:03,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.66ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 77.9MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.71ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 74.6MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,398 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 71.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:15:03,398 INFO L158 Benchmark]: RCFGBuilder took 1132.79ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 71.3MB in the beginning and 306.2MB in the end (delta: -234.9MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,398 INFO L158 Benchmark]: TraceAbstraction took 9324.88ms. Allocated memory was 369.1MB in the beginning and 889.2MB in the end (delta: 520.1MB). Free memory was 305.2MB in the beginning and 676.8MB in the end (delta: -371.7MB). Peak memory consumption was 504.0MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,398 INFO L158 Benchmark]: Witness Printer took 77.95ms. Allocated memory is still 889.2MB. Free memory was 676.8MB in the beginning and 668.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:15:03,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.66ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 77.9MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.71ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 74.6MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 71.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1132.79ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 71.3MB in the beginning and 306.2MB in the end (delta: -234.9MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9324.88ms. Allocated memory was 369.1MB in the beginning and 889.2MB in the end (delta: 520.1MB). Free memory was 305.2MB in the beginning and 676.8MB in the end (delta: -371.7MB). Peak memory consumption was 504.0MB. Max. memory is 16.1GB. * Witness Printer took 77.95ms. Allocated memory is still 889.2MB. Free memory was 676.8MB in the beginning and 668.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.2s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 583 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 571 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2872 IncrementalHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 5 mSDtfsCounter, 2872 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 313 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=8, InterpolantAutomatonStates: 43, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 478 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 2018 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1857 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 252/382 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 01:15:03,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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