./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:36:02,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:36:02,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:36:02,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:36:02,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:36:02,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:36:02,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:36:02,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:36:02,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:36:02,479 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:36:02,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:36:02,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:36:02,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:36:02,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:36:02,483 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:36:02,484 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:36:02,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:36:02,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:36:02,484 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/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 ! overflow) ) 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 -> 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d [2025-03-17 19:36:02,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:36:02,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:36:02,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:36:02,748 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:36:02,748 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:36:02,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2025-03-17 19:36:04,033 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a2d02b4/66b52020d9bc43c1b476ee363bb3da83/FLAG847ffc3b2 [2025-03-17 19:36:04,485 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:36:04,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2025-03-17 19:36:04,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a2d02b4/66b52020d9bc43c1b476ee363bb3da83/FLAG847ffc3b2 [2025-03-17 19:36:04,616 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a2d02b4/66b52020d9bc43c1b476ee363bb3da83 [2025-03-17 19:36:04,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:36:04,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:36:04,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:36:04,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:36:04,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:36:04,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:36:04" (1/1) ... [2025-03-17 19:36:04,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac7b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:04, skipping insertion in model container [2025-03-17 19:36:04,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:36:04" (1/1) ... [2025-03-17 19:36:04,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:36:05,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:36:05,373 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:36:05,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:36:05,572 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:36:05,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05 WrapperNode [2025-03-17 19:36:05,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:36:05,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:36:05,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:36:05,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:36:05,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,630 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 103 [2025-03-17 19:36:05,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:36:05,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:36:05,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:36:05,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:36:05,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,662 INFO L175 MemorySlicer]: Split 13 memory accesses to 9 slices as follows [1, 5, 1, 1, 1, 1, 1, 1, 1]. 38 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [0, 5, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [1, 0, 1, 1, 1, 1, 1, 1, 1]. [2025-03-17 19:36:05,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,678 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:36:05,695 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:36:05,695 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:36:05,695 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:36:05,696 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (1/1) ... [2025-03-17 19:36:05,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:36:05,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:36:05,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:36:05,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:36:05,791 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2025-03-17 19:36:05,791 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2025-03-17 19:36:05,792 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:36:05,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:36:05,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:36:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 19:36:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 19:36:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 19:36:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 19:36:05,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-17 19:36:05,795 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:36:06,090 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:36:06,092 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:36:06,417 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:36:06,417 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:36:06,590 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:36:06,590 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:36:06,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:06 BoogieIcfgContainer [2025-03-17 19:36:06,592 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:36:06,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:36:06,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:36:06,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:36:06,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:36:04" (1/3) ... [2025-03-17 19:36:06,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752f7dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:36:06, skipping insertion in model container [2025-03-17 19:36:06,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:05" (2/3) ... [2025-03-17 19:36:06,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752f7dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:36:06, skipping insertion in model container [2025-03-17 19:36:06,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:06" (3/3) ... [2025-03-17 19:36:06,603 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr-overflow.i [2025-03-17 19:36:06,617 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:36:06,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_36-trylock_nr-overflow.i that has 3 procedures, 79 locations, 1 initial locations, 11 loop locations, and 10 error locations. [2025-03-17 19:36:06,618 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:36:06,675 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:36:06,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 108 transitions, 230 flow [2025-03-17 19:36:06,740 INFO L124 PetriNetUnfolderBase]: 30/106 cut-off events. [2025-03-17 19:36:06,741 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 19:36:06,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 30/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 277 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 85. Up to 5 conditions per place. [2025-03-17 19:36:06,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 108 transitions, 230 flow [2025-03-17 19:36:06,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 97 transitions, 203 flow [2025-03-17 19:36:06,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:36:06,765 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;@78b34263, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:36:06,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-17 19:36:06,768 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:36:06,768 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2025-03-17 19:36:06,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:36:06,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:06,769 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-03-17 19:36:06,769 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-17 19:36:06,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:06,774 INFO L85 PathProgramCache]: Analyzing trace with hash 15894, now seen corresponding path program 1 times [2025-03-17 19:36:06,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:06,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790393086] [2025-03-17 19:36:06,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:06,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:36:06,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:36:06,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:06,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790393086] [2025-03-17 19:36:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790393086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:36:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671356596] [2025-03-17 19:36:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:07,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:36:07,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:07,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:36:07,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:36:07,134 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 108 [2025-03-17 19:36:07,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 97 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2025-03-17 19:36:07,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:07,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 108 [2025-03-17 19:36:07,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:07,400 INFO L124 PetriNetUnfolderBase]: 581/1349 cut-off events. [2025-03-17 19:36:07,402 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2025-03-17 19:36:07,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2281 conditions, 1349 events. 581/1349 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8408 event pairs, 457 based on Foata normal form. 272/1389 useless extension candidates. Maximal degree in co-relation 2191. Up to 889 conditions per place. [2025-03-17 19:36:07,418 INFO L140 encePairwiseOnDemand]: 89/108 looper letters, 31 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2025-03-17 19:36:07,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 207 flow [2025-03-17 19:36:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:36:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:36:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2025-03-17 19:36:07,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5802469135802469 [2025-03-17 19:36:07,432 INFO L175 Difference]: Start difference. First operand has 77 places, 97 transitions, 203 flow. Second operand 3 states and 188 transitions. [2025-03-17 19:36:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 207 flow [2025-03-17 19:36:07,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:36:07,466 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 140 flow [2025-03-17 19:36:07,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2025-03-17 19:36:07,477 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-03-17 19:36:07,477 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 140 flow [2025-03-17 19:36:07,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2025-03-17 19:36:07,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:07,478 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:36:07,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:36:07,478 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-17 19:36:07,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:07,478 INFO L85 PathProgramCache]: Analyzing trace with hash 493122, now seen corresponding path program 1 times [2025-03-17 19:36:07,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:07,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585154076] [2025-03-17 19:36:07,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:07,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:07,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:36:07,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:36:07,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:07,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:36:07,530 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:36:07,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:36:07,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:36:07,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:07,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:36:07,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:36:07,571 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 19:36:07,573 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-03-17 19:36:07,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-03-17 19:36:07,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-03-17 19:36:07,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-03-17 19:36:07,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:36:07,578 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 19:36:07,594 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:36:07,595 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:36:07,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:36:07 BasicIcfg [2025-03-17 19:36:07,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:36:07,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:36:07,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:36:07,604 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:36:07,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:06" (3/4) ... [2025-03-17 19:36:07,606 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-17 19:36:07,637 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-03-17 19:36:07,687 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:36:07,687 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:36:07,687 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:36:07,688 INFO L158 Benchmark]: Toolchain (without parser) took 3068.47ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 85.1MB in the end (delta: 23.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2025-03-17 19:36:07,689 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:07,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 952.39ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 47.7MB in the end (delta: 60.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-17 19:36:07,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.70ms. Allocated memory is still 142.6MB. Free memory was 47.7MB in the beginning and 44.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:07,690 INFO L158 Benchmark]: Boogie Preprocessor took 62.85ms. Allocated memory is still 142.6MB. Free memory was 44.6MB in the beginning and 41.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:07,690 INFO L158 Benchmark]: IcfgBuilder took 897.47ms. Allocated memory is still 142.6MB. Free memory was 41.5MB in the beginning and 61.4MB in the end (delta: -19.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2025-03-17 19:36:07,690 INFO L158 Benchmark]: TraceAbstraction took 1008.72ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 90.0MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:07,690 INFO L158 Benchmark]: Witness Printer took 84.12ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:07,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 952.39ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 47.7MB in the end (delta: 60.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.70ms. Allocated memory is still 142.6MB. Free memory was 47.7MB in the beginning and 44.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.85ms. Allocated memory is still 142.6MB. Free memory was 44.6MB in the beginning and 41.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 897.47ms. Allocated memory is still 142.6MB. Free memory was 41.5MB in the beginning and 61.4MB in the end (delta: -19.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1008.72ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 90.0MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.12ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1839]: integer overflow possible integer overflow possible We found a FailurePath: [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] long counter; [L1799] time_t end_time; [L1836] int status; [L1837] pthread_t counter_thread_id; [L1838] pthread_t monitor_thread_id; [L1839] time (((void *)0)) + 60 VAL [\old(argc)=2147483589, \old(argv)={2147483590:2147483591}, argc=2147483589, counter=0, end_time=0, mutex={1:0}] - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 132 locations, 179 edges, 20 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2025-03-17 19:36:07,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)