./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:18:42,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:18:42,789 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-30 10:18:42,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:18:42,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:18:42,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:18:42,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:18:42,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:18:42,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:18:42,819 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:18:42,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:18:42,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:18:42,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:18:42,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:18:42,819 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:18:42,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:18:42,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:18:42,821 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:42,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:18:42,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:42,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:18:42,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:18:42,822 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 -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2025-04-30 10:18:43,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:18:43,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:18:43,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:18:43,024 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:18:43,024 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:18:43,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i [2025-04-30 10:18:44,302 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02768634/7474dcfc8f4743d1a05edc51a049f315/FLAGaa5d5c9e6 [2025-04-30 10:18:44,535 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:18:44,536 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i [2025-04-30 10:18:44,554 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02768634/7474dcfc8f4743d1a05edc51a049f315/FLAGaa5d5c9e6 [2025-04-30 10:18:45,353 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02768634/7474dcfc8f4743d1a05edc51a049f315 [2025-04-30 10:18:45,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:18:45,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:18:45,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:18:45,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:18:45,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:18:45,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47313b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45, skipping insertion in model container [2025-04-30 10:18:45,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:18:45,787 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:18:45,802 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:18:45,844 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:18:45,880 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:18:45,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45 WrapperNode [2025-04-30 10:18:45,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:18:45,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:18:45,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:18:45,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:18:45,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,921 INFO L138 Inliner]: procedures = 262, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 86 [2025-04-30 10:18:45,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:18:45,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:18:45,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:18:45,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:18:45,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,941 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]. [2025-04-30 10:18:45,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,949 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:18:45,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:18:45,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:18:45,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:18:45,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (1/1) ... [2025-04-30 10:18:45,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:45,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:18:45,994 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) [2025-04-30 10:18:45,997 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 [2025-04-30 10:18:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:18:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:18:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:18:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:18:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:18:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:18:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:18:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:18:46,017 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:18:46,108 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:18:46,109 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:18:46,230 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:18:46,231 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:18:46,443 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:18:46,444 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:18:46,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:46 BoogieIcfgContainer [2025-04-30 10:18:46,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:18:46,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:18:46,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:18:46,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:18:46,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:18:45" (1/3) ... [2025-04-30 10:18:46,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515def1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:18:46, skipping insertion in model container [2025-04-30 10:18:46,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:45" (2/3) ... [2025-04-30 10:18:46,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515def1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:18:46, skipping insertion in model container [2025-04-30 10:18:46,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:46" (3/3) ... [2025-04-30 10:18:46,453 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2025-04-30 10:18:46,463 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:18:46,464 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_43-thread_create_nr.i that has 2 procedures, 22 locations, 20 edges, 1 initial locations, 0 loop locations, and 6 error locations. [2025-04-30 10:18:46,465 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:18:46,494 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:18:46,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2025-04-30 10:18:46,545 INFO L116 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-04-30 10:18:46,546 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:18:46,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-30 10:18:46,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2025-04-30 10:18:46,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-04-30 10:18:46,558 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:18:46,567 INFO L340 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;@54dc6309, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:18:46,569 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-30 10:18:46,572 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:18:46,573 INFO L116 PetriNetUnfolderBase]: 0/1 cut-off events. [2025-04-30 10:18:46,574 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:18:46,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:18:46,574 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-04-30 10:18:46,575 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-30 10:18:46,578 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash 7965, now seen corresponding path program 1 times [2025-04-30 10:18:46,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:46,585 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024547923] [2025-04-30 10:18:46,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:46,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:46,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-30 10:18:46,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-30 10:18:46,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:46,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:46,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:46,794 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024547923] [2025-04-30 10:18:46,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024547923] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:46,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:46,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:18:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709439231] [2025-04-30 10:18:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:46,800 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:18:46,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:46,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:18:46,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:46,830 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-04-30 10:18:46,832 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) [2025-04-30 10:18:46,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:18:46,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-04-30 10:18:46,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:18:46,860 INFO L116 PetriNetUnfolderBase]: 12/54 cut-off events. [2025-04-30 10:18:46,860 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:18:46,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 54 events. 12/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 184 event pairs, 12 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 82. Up to 35 conditions per place. [2025-04-30 10:18:46,862 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 9 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2025-04-30 10:18:46,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 61 flow [2025-04-30 10:18:46,864 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:18:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:18:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-04-30 10:18:46,870 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2025-04-30 10:18:46,873 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 37 transitions. [2025-04-30 10:18:46,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 61 flow [2025-04-30 10:18:46,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:18:46,877 INFO L231 Difference]: Finished difference. Result has 23 places, 18 transitions, 42 flow [2025-04-30 10:18:46,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=18} [2025-04-30 10:18:46,880 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2025-04-30 10:18:46,880 INFO L485 AbstractCegarLoop]: Abstraction has has 23 places, 18 transitions, 42 flow [2025-04-30 10:18:46,880 INFO L486 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) [2025-04-30 10:18:46,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:18:46,880 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:18:46,881 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:18:46,881 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-30 10:18:46,881 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1226710312, now seen corresponding path program 1 times [2025-04-30 10:18:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:46,881 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947205659] [2025-04-30 10:18:46,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:46,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:46,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:18:46,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:18:46,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:46,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:46,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:46,997 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947205659] [2025-04-30 10:18:46,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947205659] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:46,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:46,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:46,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008698412] [2025-04-30 10:18:46,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:46,998 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:46,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:46,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:46,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:47,002 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2025-04-30 10:18:47,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 18 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:18:47,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:18:47,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2025-04-30 10:18:47,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:18:47,062 INFO L116 PetriNetUnfolderBase]: 8/36 cut-off events. [2025-04-30 10:18:47,062 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:18:47,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 36 events. 8/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 58. Up to 10 conditions per place. [2025-04-30 10:18:47,062 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 5 selfloop transitions, 3 changer transitions 9/24 dead transitions. [2025-04-30 10:18:47,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 88 flow [2025-04-30 10:18:47,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:18:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2025-04-30 10:18:47,063 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2025-04-30 10:18:47,063 INFO L175 Difference]: Start difference. First operand has 23 places, 18 transitions, 42 flow. Second operand 4 states and 59 transitions. [2025-04-30 10:18:47,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 88 flow [2025-04-30 10:18:47,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:18:47,064 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 34 flow [2025-04-30 10:18:47,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2025-04-30 10:18:47,065 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2025-04-30 10:18:47,065 INFO L485 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 34 flow [2025-04-30 10:18:47,065 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:18:47,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:18:47,065 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:47,065 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:18:47,066 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-30 10:18:47,066 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:47,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2047196457, now seen corresponding path program 1 times [2025-04-30 10:18:47,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:47,066 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55822238] [2025-04-30 10:18:47,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:47,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:47,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:18:47,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:18:47,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:47,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:47,187 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55822238] [2025-04-30 10:18:47,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55822238] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:47,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:47,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096474162] [2025-04-30 10:18:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:47,188 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:47,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:47,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:47,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:47,200 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-04-30 10:18:47,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-04-30 10:18:47,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:18:47,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-04-30 10:18:47,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:18:47,216 INFO L116 PetriNetUnfolderBase]: 4/22 cut-off events. [2025-04-30 10:18:47,216 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-30 10:18:47,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 4/22 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 4 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 36. Up to 14 conditions per place. [2025-04-30 10:18:47,216 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 5 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2025-04-30 10:18:47,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 46 flow [2025-04-30 10:18:47,217 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:18:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2025-04-30 10:18:47,217 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2025-04-30 10:18:47,217 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 34 flow. Second operand 4 states and 40 transitions. [2025-04-30 10:18:47,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 46 flow [2025-04-30 10:18:47,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:18:47,218 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 30 flow [2025-04-30 10:18:47,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2025-04-30 10:18:47,218 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2025-04-30 10:18:47,218 INFO L485 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 30 flow [2025-04-30 10:18:47,219 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-04-30 10:18:47,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:18:47,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:47,219 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:18:47,219 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-30 10:18:47,219 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash 961419531, now seen corresponding path program 1 times [2025-04-30 10:18:47,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:47,219 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626614227] [2025-04-30 10:18:47,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:47,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:47,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-30 10:18:47,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-30 10:18:47,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:47,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:47,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:47,277 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626614227] [2025-04-30 10:18:47,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626614227] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:47,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:47,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:47,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077434717] [2025-04-30 10:18:47,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:47,278 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:47,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:47,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:47,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:47,288 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2025-04-30 10:18:47,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-04-30 10:18:47,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:18:47,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2025-04-30 10:18:47,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:18:47,302 INFO L116 PetriNetUnfolderBase]: 2/16 cut-off events. [2025-04-30 10:18:47,302 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:18:47,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 16 events. 2/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 2 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 23. Up to 9 conditions per place. [2025-04-30 10:18:47,302 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2025-04-30 10:18:47,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 40 flow [2025-04-30 10:18:47,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:18:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2025-04-30 10:18:47,304 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2025-04-30 10:18:47,304 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 30 flow. Second operand 4 states and 39 transitions. [2025-04-30 10:18:47,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 40 flow [2025-04-30 10:18:47,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 37 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:18:47,304 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2025-04-30 10:18:47,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2025-04-30 10:18:47,305 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2025-04-30 10:18:47,305 INFO L485 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2025-04-30 10:18:47,305 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-04-30 10:18:47,307 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-04-30 10:18:47,308 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-04-30 10:18:47,308 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-04-30 10:18:47,308 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-04-30 10:18:47,308 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:18:47,308 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-30 10:18:47,311 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:18:47,312 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:18:47,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:18:47 BasicIcfg [2025-04-30 10:18:47,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:18:47,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:18:47,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:18:47,316 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:18:47,316 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:46" (3/4) ... [2025-04-30 10:18:47,317 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:18:47,319 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:18:47,322 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2025-04-30 10:18:47,322 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:18:47,322 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:18:47,322 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:18:47,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:18:47,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:18:47,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:18:47,388 INFO L158 Benchmark]: Toolchain (without parser) took 2032.87ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 104.0MB in the end (delta: 7.9MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2025-04-30 10:18:47,388 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:18:47,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.47ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 81.4MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:18:47,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.84ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 79.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:18:47,390 INFO L158 Benchmark]: Boogie Preprocessor took 44.11ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:18:47,390 INFO L158 Benchmark]: RCFGBuilder took 478.73ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 85.4MB in the end (delta: -8.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2025-04-30 10:18:47,391 INFO L158 Benchmark]: TraceAbstraction took 868.82ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 51.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2025-04-30 10:18:47,391 INFO L158 Benchmark]: Witness Printer took 72.25ms. Allocated memory is still 142.6MB. Free memory was 51.4MB in the beginning and 104.0MB in the end (delta: -52.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2025-04-30 10:18:47,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.47ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 81.4MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.84ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 79.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.11ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.73ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 85.4MB in the end (delta: -8.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 868.82ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 51.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 72.25ms. Allocated memory is still 142.6MB. Free memory was 51.4MB in the beginning and 104.0MB in the end (delta: -52.7MB). Peak memory consumption was 15.1MB. 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: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 33 locations, 31 edges, 9 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:18:47,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE