./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:22:31,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:22:31,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 16:22:31,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:22:31,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:22:31,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:22:31,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:22:31,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:22:31,694 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:22:31,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:22:31,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:22:31,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 16:22:31,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:22:31,695 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:22:31,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:22:31,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:22:31,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:22:31,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:22:31,696 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 ! call(reach_error())) ) 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 -> 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 [2025-01-09 16:22:31,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:22:31,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:22:31,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:22:31,968 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:22:31,969 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:22:31,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2025-01-09 16:22:33,173 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/236da021f/a81564b4ef63435c974f8d4cdeb723ba/FLAG366969abd [2025-01-09 16:22:33,468 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:22:33,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2025-01-09 16:22:33,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/236da021f/a81564b4ef63435c974f8d4cdeb723ba/FLAG366969abd [2025-01-09 16:22:33,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/236da021f/a81564b4ef63435c974f8d4cdeb723ba [2025-01-09 16:22:33,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:22:33,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:22:33,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:22:33,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:22:33,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:22:33,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:22:33" (1/1) ... [2025-01-09 16:22:33,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f67c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:33, skipping insertion in model container [2025-01-09 16:22:33,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:22:33" (1/1) ... [2025-01-09 16:22:33,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:22:33,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2025-01-09 16:22:33,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2025-01-09 16:22:33,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:22:33,991 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:22:34,019 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2025-01-09 16:22:34,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2025-01-09 16:22:34,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:22:34,054 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:22:34,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34 WrapperNode [2025-01-09 16:22:34,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:22:34,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:22:34,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:22:34,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:22:34,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,076 INFO L138 Inliner]: procedures = 169, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2025-01-09 16:22:34,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:22:34,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:22:34,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:22:34,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:22:34,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,091 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-01-09 16:22:34,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,094 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:22:34,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:22:34,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:22:34,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:22:34,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (1/1) ... [2025-01-09 16:22:34,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:22:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:22:34,126 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) [2025-01-09 16:22:34,133 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 [2025-01-09 16:22:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2025-01-09 16:22:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2025-01-09 16:22:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2025-01-09 16:22:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2025-01-09 16:22:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 16:22:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:22:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:22:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:22:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:22:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 16:22:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:22:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:22:34,151 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 16:22:34,234 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:22:34,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:22:34,356 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 16:22:34,356 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:22:34,471 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:22:34,473 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:22:34,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:22:34 BoogieIcfgContainer [2025-01-09 16:22:34,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:22:34,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:22:34,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:22:34,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:22:34,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:22:33" (1/3) ... [2025-01-09 16:22:34,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176820f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:22:34, skipping insertion in model container [2025-01-09 16:22:34,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:22:34" (2/3) ... [2025-01-09 16:22:34,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176820f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:22:34, skipping insertion in model container [2025-01-09 16:22:34,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:22:34" (3/3) ... [2025-01-09 16:22:34,483 INFO L128 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2025-01-09 16:22:34,494 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:22:34,495 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG time_var_mutex.i that has 3 procedures, 34 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-09 16:22:34,495 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 16:22:34,530 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-09 16:22:34,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 88 flow [2025-01-09 16:22:34,578 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2025-01-09 16:22:34,583 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 16:22:34,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 4/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2025-01-09 16:22:34,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 88 flow [2025-01-09 16:22:34,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 33 transitions, 75 flow [2025-01-09 16:22:34,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:22:34,605 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=LoopHeads, 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;@64b87879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:22:34,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-09 16:22:34,618 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 16:22:34,618 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-01-09 16:22:34,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 16:22:34,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:22:34,619 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:22:34,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-09 16:22:34,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:22:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2007037385, now seen corresponding path program 1 times [2025-01-09 16:22:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:22:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710331612] [2025-01-09 16:22:34,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:22:34,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:22:34,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 16:22:34,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 16:22:34,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:22:34,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:22:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:22:34,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:22:34,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710331612] [2025-01-09 16:22:34,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710331612] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:22:34,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:22:34,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 16:22:34,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515851465] [2025-01-09 16:22:34,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:22:34,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:22:34,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:22:34,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:22:34,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:22:34,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2025-01-09 16:22:34,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-09 16:22:34,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:22:34,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2025-01-09 16:22:34,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:22:34,944 INFO L124 PetriNetUnfolderBase]: 131/310 cut-off events. [2025-01-09 16:22:34,945 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-01-09 16:22:34,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 310 events. 131/310 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1459 event pairs, 79 based on Foata normal form. 27/308 useless extension candidates. Maximal degree in co-relation 548. Up to 152 conditions per place. [2025-01-09 16:22:34,948 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 23 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2025-01-09 16:22:34,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 136 flow [2025-01-09 16:22:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:22:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:22:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-01-09 16:22:34,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6396396396396397 [2025-01-09 16:22:34,959 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 75 flow. Second operand 3 states and 71 transitions. [2025-01-09 16:22:34,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 136 flow [2025-01-09 16:22:34,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-09 16:22:34,965 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 68 flow [2025-01-09 16:22:34,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2025-01-09 16:22:34,969 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2025-01-09 16:22:34,970 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 68 flow [2025-01-09 16:22:34,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-09 16:22:34,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:22:34,971 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:22:34,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 16:22:34,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-09 16:22:34,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:22:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1007474203, now seen corresponding path program 1 times [2025-01-09 16:22:34,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:22:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680739701] [2025-01-09 16:22:34,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:22:34,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:22:34,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 16:22:35,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 16:22:35,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:22:35,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:22:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:22:35,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:22:35,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680739701] [2025-01-09 16:22:35,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680739701] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:22:35,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:22:35,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:22:35,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643998677] [2025-01-09 16:22:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:22:35,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:22:35,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:22:35,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:22:35,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:22:35,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2025-01-09 16:22:35,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2025-01-09 16:22:35,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:22:35,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2025-01-09 16:22:35,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:22:35,133 INFO L124 PetriNetUnfolderBase]: 225/463 cut-off events. [2025-01-09 16:22:35,133 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-01-09 16:22:35,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 463 events. 225/463 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2170 event pairs, 112 based on Foata normal form. 8/449 useless extension candidates. Maximal degree in co-relation 688. Up to 264 conditions per place. [2025-01-09 16:22:35,135 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 25 selfloop transitions, 4 changer transitions 3/41 dead transitions. [2025-01-09 16:22:35,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 157 flow [2025-01-09 16:22:35,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:22:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:22:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-01-09 16:22:35,138 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6306306306306306 [2025-01-09 16:22:35,138 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 68 flow. Second operand 3 states and 70 transitions. [2025-01-09 16:22:35,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 157 flow [2025-01-09 16:22:35,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 153 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:22:35,141 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 92 flow [2025-01-09 16:22:35,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2025-01-09 16:22:35,143 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2025-01-09 16:22:35,143 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 92 flow [2025-01-09 16:22:35,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2025-01-09 16:22:35,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:22:35,144 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:22:35,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 16:22:35,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-09 16:22:35,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:22:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1860759740, now seen corresponding path program 1 times [2025-01-09 16:22:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:22:35,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626068517] [2025-01-09 16:22:35,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:22:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:22:35,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-09 16:22:35,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-09 16:22:35,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:22:35,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:22:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:22:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:22:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626068517] [2025-01-09 16:22:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626068517] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:22:35,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:22:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:22:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722811207] [2025-01-09 16:22:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:22:35,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:22:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:22:35,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:22:35,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:22:35,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2025-01-09 16:22:35,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-01-09 16:22:35,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:22:35,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2025-01-09 16:22:35,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:22:35,268 INFO L124 PetriNetUnfolderBase]: 217/433 cut-off events. [2025-01-09 16:22:35,268 INFO L125 PetriNetUnfolderBase]: For 87/90 co-relation queries the response was YES. [2025-01-09 16:22:35,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 433 events. 217/433 cut-off events. For 87/90 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1944 event pairs, 117 based on Foata normal form. 23/443 useless extension candidates. Maximal degree in co-relation 728. Up to 274 conditions per place. [2025-01-09 16:22:35,270 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 24 selfloop transitions, 2 changer transitions 5/40 dead transitions. [2025-01-09 16:22:35,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 169 flow [2025-01-09 16:22:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:22:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:22:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2025-01-09 16:22:35,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6216216216216216 [2025-01-09 16:22:35,271 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 92 flow. Second operand 3 states and 69 transitions. [2025-01-09 16:22:35,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 169 flow [2025-01-09 16:22:35,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 163 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:22:35,273 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 88 flow [2025-01-09 16:22:35,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2025-01-09 16:22:35,274 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2025-01-09 16:22:35,274 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 88 flow [2025-01-09 16:22:35,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-01-09 16:22:35,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:22:35,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:22:35,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 16:22:35,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-09 16:22:35,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:22:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash 468251513, now seen corresponding path program 1 times [2025-01-09 16:22:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:22:35,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692563806] [2025-01-09 16:22:35,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:22:35,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:22:35,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 16:22:35,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 16:22:35,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:22:35,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:22:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:22:35,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:22:35,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692563806] [2025-01-09 16:22:35,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692563806] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:22:35,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:22:35,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:22:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407747318] [2025-01-09 16:22:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:22:35,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:22:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:22:35,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:22:35,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:22:35,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 37 [2025-01-09 16:22:35,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2025-01-09 16:22:35,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:22:35,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 37 [2025-01-09 16:22:35,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:22:35,506 INFO L124 PetriNetUnfolderBase]: 140/340 cut-off events. [2025-01-09 16:22:35,507 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-01-09 16:22:35,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 340 events. 140/340 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1560 event pairs, 75 based on Foata normal form. 8/339 useless extension candidates. Maximal degree in co-relation 473. Up to 174 conditions per place. [2025-01-09 16:22:35,510 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 17 selfloop transitions, 5 changer transitions 7/42 dead transitions. [2025-01-09 16:22:35,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 176 flow [2025-01-09 16:22:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:22:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:22:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2025-01-09 16:22:35,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2025-01-09 16:22:35,511 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 88 flow. Second operand 3 states and 78 transitions. [2025-01-09 16:22:35,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 176 flow [2025-01-09 16:22:35,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 16:22:35,513 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 96 flow [2025-01-09 16:22:35,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2025-01-09 16:22:35,513 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2025-01-09 16:22:35,513 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 96 flow [2025-01-09 16:22:35,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2025-01-09 16:22:35,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:22:35,514 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:22:35,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:22:35,514 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-09 16:22:35,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:22:35,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1029989395, now seen corresponding path program 2 times [2025-01-09 16:22:35,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:22:35,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012005967] [2025-01-09 16:22:35,514 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:22:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:22:35,528 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-01-09 16:22:35,532 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 16:22:35,536 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:22:35,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:22:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:22:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:22:35,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012005967] [2025-01-09 16:22:35,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012005967] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:22:35,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:22:35,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:22:35,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352221423] [2025-01-09 16:22:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:22:35,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:22:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:22:35,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:22:35,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:22:35,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 37 [2025-01-09 16:22:35,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2025-01-09 16:22:35,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:22:35,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 37 [2025-01-09 16:22:35,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:22:35,639 INFO L124 PetriNetUnfolderBase]: 59/159 cut-off events. [2025-01-09 16:22:35,639 INFO L125 PetriNetUnfolderBase]: For 64/66 co-relation queries the response was YES. [2025-01-09 16:22:35,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 159 events. 59/159 cut-off events. For 64/66 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 594 event pairs, 28 based on Foata normal form. 11/162 useless extension candidates. Maximal degree in co-relation 304. Up to 64 conditions per place. [2025-01-09 16:22:35,640 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2025-01-09 16:22:35,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 142 flow [2025-01-09 16:22:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:22:35,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:22:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-01-09 16:22:35,642 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2025-01-09 16:22:35,642 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 96 flow. Second operand 3 states and 72 transitions. [2025-01-09 16:22:35,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 142 flow [2025-01-09 16:22:35,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 135 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-01-09 16:22:35,646 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2025-01-09 16:22:35,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2025-01-09 16:22:35,646 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2025-01-09 16:22:35,646 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2025-01-09 16:22:35,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2025-01-09 16:22:35,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2025-01-09 16:22:35,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 16:22:35,649 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-01-09 16:22:35,654 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 16:22:35,654 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 16:22:35,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:22:35 BasicIcfg [2025-01-09 16:22:35,659 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 16:22:35,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 16:22:35,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 16:22:35,660 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 16:22:35,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:22:34" (3/4) ... [2025-01-09 16:22:35,662 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 16:22:35,663 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2025-01-09 16:22:35,663 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2025-01-09 16:22:35,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2025-01-09 16:22:35,668 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-09 16:22:35,668 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 16:22:35,668 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 16:22:35,723 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 16:22:35,723 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 16:22:35,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 16:22:35,726 INFO L158 Benchmark]: Toolchain (without parser) took 1968.88ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 68.8MB in the end (delta: 43.3MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2025-01-09 16:22:35,726 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:22:35,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.70ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 91.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 16:22:35,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.00ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 16:22:35,727 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 88.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:22:35,727 INFO L158 Benchmark]: RCFGBuilder took 375.49ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 60.2MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 16:22:35,728 INFO L158 Benchmark]: TraceAbstraction took 1181.90ms. Allocated memory is still 142.6MB. Free memory was 59.8MB in the beginning and 73.5MB in the end (delta: -13.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:22:35,728 INFO L158 Benchmark]: Witness Printer took 64.49ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 68.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 16:22:35,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.70ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 91.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.00ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 88.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.49ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 60.2MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1181.90ms. Allocated memory is still 142.6MB. Free memory was 59.8MB in the beginning and 73.5MB in the end (delta: -13.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 64.49ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 68.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 710]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 61 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 8 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 16:22:35,743 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