./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/goblint-regression/04-mutex_02-simple_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:43:33,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:43:33,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:43:33,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:43:33,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:43:33,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:43:33,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:43:33,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:43:33,843 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:43:33,843 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:43:33,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:43:33,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:43:33,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:43:33,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:43:33,843 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:43:33,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:43:33,844 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:43:33,845 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:43:33,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:33,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:33,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:43:33,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:43:33,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:43:33,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:43:33,849 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 ! 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 -> d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 [2025-01-10 06:43:34,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:43:34,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:43:34,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:43:34,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:43:34,092 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:43:34,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2025-01-10 06:43:35,237 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ce0f6781/ebb0fb9beb19419ebf4630817f5c3cfb/FLAG4960fadf9 [2025-01-10 06:43:35,587 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:43:35,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2025-01-10 06:43:35,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ce0f6781/ebb0fb9beb19419ebf4630817f5c3cfb/FLAG4960fadf9 [2025-01-10 06:43:35,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ce0f6781/ebb0fb9beb19419ebf4630817f5c3cfb [2025-01-10 06:43:35,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:43:35,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:43:35,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:43:35,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:43:35,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:43:35,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:43:35" (1/1) ... [2025-01-10 06:43:35,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b9b2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:35, skipping insertion in model container [2025-01-10 06:43:35,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:43:35" (1/1) ... [2025-01-10 06:43:35,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:43:36,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:43:36,145 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:43:36,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:43:36,235 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:43:36,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36 WrapperNode [2025-01-10 06:43:36,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:43:36,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:43:36,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:43:36,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:43:36,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,261 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 86 [2025-01-10 06:43:36,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:43:36,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:43:36,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:43:36,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:43:36,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,280 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2025-01-10 06:43:36,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:43:36,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:43:36,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:43:36,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:43:36,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (1/1) ... [2025-01-10 06:43:36,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:36,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:43:36,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:43:36,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:43:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:43:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:43:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:43:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:43:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:43:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:43:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:43:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:43:36,354 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:43:36,439 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:43:36,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:43:36,589 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:43:36,589 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:43:36,740 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:43:36,741 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:43:36,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:36 BoogieIcfgContainer [2025-01-10 06:43:36,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:43:36,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:43:36,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:43:36,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:43:36,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:43:35" (1/3) ... [2025-01-10 06:43:36,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90f182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:43:36, skipping insertion in model container [2025-01-10 06:43:36,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:36" (2/3) ... [2025-01-10 06:43:36,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90f182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:43:36, skipping insertion in model container [2025-01-10 06:43:36,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:36" (3/3) ... [2025-01-10 06:43:36,747 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2025-01-10 06:43:36,757 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:43:36,758 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_02-simple_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:43:36,758 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:43:36,782 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:43:36,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2025-01-10 06:43:36,859 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-01-10 06:43:36,864 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:43:36,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-01-10 06:43:36,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2025-01-10 06:43:36,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-01-10 06:43:36,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:43:36,894 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;@5d233a8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:43:36,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-10 06:43:36,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:43:36,900 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-01-10 06:43:36,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:43:36,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:36,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:43:36,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1211896649, now seen corresponding path program 1 times [2025-01-10 06:43:36,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:36,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507592835] [2025-01-10 06:43:36,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:36,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:36,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:43:37,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:43:37,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:37,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:43:37,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:37,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507592835] [2025-01-10 06:43:37,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507592835] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:37,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:37,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:43:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905429602] [2025-01-10 06:43:37,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:37,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:43:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:37,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:43:37,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:43:37,134 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2025-01-10 06:43:37,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:37,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2025-01-10 06:43:37,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:37,168 INFO L124 PetriNetUnfolderBase]: 22/67 cut-off events. [2025-01-10 06:43:37,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:43:37,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 67 events. 22/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 11 based on Foata normal form. 4/63 useless extension candidates. Maximal degree in co-relation 121. Up to 50 conditions per place. [2025-01-10 06:43:37,170 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 14 selfloop transitions, 3 changer transitions 2/25 dead transitions. [2025-01-10 06:43:37,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 91 flow [2025-01-10 06:43:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:43:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:43:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-01-10 06:43:37,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6376811594202898 [2025-01-10 06:43:37,179 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 44 transitions. [2025-01-10 06:43:37,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 91 flow [2025-01-10 06:43:37,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:43:37,183 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 59 flow [2025-01-10 06:43:37,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2025-01-10 06:43:37,191 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2025-01-10 06:43:37,191 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 59 flow [2025-01-10 06:43:37,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:37,191 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:37,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:43:37,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:37,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:37,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1748534457, now seen corresponding path program 1 times [2025-01-10 06:43:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:37,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182867474] [2025-01-10 06:43:37,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:37,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:37,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:43:37,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:43:37,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:37,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:43:37,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:37,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182867474] [2025-01-10 06:43:37,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182867474] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:37,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:37,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:43:37,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772217351] [2025-01-10 06:43:37,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:37,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:43:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:37,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:43:37,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:43:37,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2025-01-10 06:43:37,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:37,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2025-01-10 06:43:37,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:37,350 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-01-10 06:43:37,350 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-10 06:43:37,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 42 events. 5/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 2 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 72. Up to 12 conditions per place. [2025-01-10 06:43:37,351 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 8 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2025-01-10 06:43:37,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 87 flow [2025-01-10 06:43:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:43:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:43:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-01-10 06:43:37,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6811594202898551 [2025-01-10 06:43:37,352 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 59 flow. Second operand 3 states and 47 transitions. [2025-01-10 06:43:37,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 87 flow [2025-01-10 06:43:37,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:43:37,353 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 64 flow [2025-01-10 06:43:37,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2025-01-10 06:43:37,354 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2025-01-10 06:43:37,354 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 64 flow [2025-01-10 06:43:37,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:37,355 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:37,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:43:37,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:37,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:37,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1425089365, now seen corresponding path program 1 times [2025-01-10 06:43:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927031470] [2025-01-10 06:43:37,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:37,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:43:37,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:43:37,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:37,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:43:37,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927031470] [2025-01-10 06:43:37,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927031470] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:37,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:37,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:43:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198656409] [2025-01-10 06:43:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:37,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:43:37,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:37,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:43:37,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:43:37,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2025-01-10 06:43:37,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:37,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2025-01-10 06:43:37,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:37,516 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-01-10 06:43:37,516 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-01-10 06:43:37,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 38 events. 6/38 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 3 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 75. Up to 19 conditions per place. [2025-01-10 06:43:37,517 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 12 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2025-01-10 06:43:37,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 96 flow [2025-01-10 06:43:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:43:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:43:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-01-10 06:43:37,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2025-01-10 06:43:37,518 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 64 flow. Second operand 4 states and 45 transitions. [2025-01-10 06:43:37,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 96 flow [2025-01-10 06:43:37,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:43:37,519 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 58 flow [2025-01-10 06:43:37,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2025-01-10 06:43:37,520 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2025-01-10 06:43:37,520 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 58 flow [2025-01-10 06:43:37,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:37,520 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:37,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:43:37,520 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:37,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1228097613, now seen corresponding path program 1 times [2025-01-10 06:43:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550669549] [2025-01-10 06:43:37,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:37,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:43:37,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:43:37,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:37,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:43:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550669549] [2025-01-10 06:43:37,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550669549] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:37,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:37,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:43:37,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199200026] [2025-01-10 06:43:37,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:37,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:43:37,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:37,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:43:37,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:43:37,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2025-01-10 06:43:37,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:37,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2025-01-10 06:43:37,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:37,651 INFO L124 PetriNetUnfolderBase]: 5/34 cut-off events. [2025-01-10 06:43:37,651 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-10 06:43:37,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 34 events. 5/34 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 2 based on Foata normal form. 3/35 useless extension candidates. Maximal degree in co-relation 61. Up to 15 conditions per place. [2025-01-10 06:43:37,652 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2025-01-10 06:43:37,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 84 flow [2025-01-10 06:43:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:43:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:43:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2025-01-10 06:43:37,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4673913043478261 [2025-01-10 06:43:37,653 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 58 flow. Second operand 4 states and 43 transitions. [2025-01-10 06:43:37,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 84 flow [2025-01-10 06:43:37,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 77 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:43:37,653 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2025-01-10 06:43:37,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2025-01-10 06:43:37,654 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2025-01-10 06:43:37,654 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2025-01-10 06:43:37,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:43:37,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-01-10 06:43:37,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-01-10 06:43:37,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:43:37,657 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 06:43:37,661 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:43:37,661 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:43:37,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:43:37 BasicIcfg [2025-01-10 06:43:37,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:43:37,665 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:43:37,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:43:37,665 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:43:37,666 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:36" (3/4) ... [2025-01-10 06:43:37,667 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:43:37,669 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-10 06:43:37,672 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2025-01-10 06:43:37,672 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 06:43:37,672 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:43:37,672 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 06:43:37,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:43:37,722 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:43:37,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:43:37,722 INFO L158 Benchmark]: Toolchain (without parser) took 1897.87ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 93.7MB in the end (delta: 28.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2025-01-10 06:43:37,723 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:43:37,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.17ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 93.9MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:43:37,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.98ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:37,723 INFO L158 Benchmark]: Boogie Preprocessor took 35.60ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 90.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:43:37,723 INFO L158 Benchmark]: RCFGBuilder took 442.96ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 42.3MB in the end (delta: 47.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-10 06:43:37,724 INFO L158 Benchmark]: TraceAbstraction took 922.04ms. Allocated memory is still 167.8MB. Free memory was 41.7MB in the beginning and 99.4MB in the end (delta: -57.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:43:37,724 INFO L158 Benchmark]: Witness Printer took 57.00ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 93.7MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:37,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.17ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 93.9MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.98ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.60ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 90.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.96ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 42.3MB in the end (delta: 47.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 922.04ms. Allocated memory is still 167.8MB. Free memory was 41.7MB in the beginning and 99.4MB in the end (delta: -57.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.00ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 93.7MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 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: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:43:37,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE