./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.c --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/13-privatized_29-multiple-protecting2-vesal_true.c -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 65bafbd746f159f00b6ba50bd19d362fd9c690b638652ed8ef63e74bbc6bc5fd --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:01:13,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:01:13,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-29 11:01:13,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:01:13,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:01:13,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:01:13,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:01:13,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:01:13,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:01:13,873 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:01:13,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:01:13,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:01:13,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:01:13,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:01:13,874 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:01:13,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:01:13,875 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:01:13,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:01:13,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:01:13,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:01:13,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:01:13,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:01:13,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:01:13,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:01:13,877 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:01:13,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:01:13,878 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 -> 65bafbd746f159f00b6ba50bd19d362fd9c690b638652ed8ef63e74bbc6bc5fd [2025-04-29 11:01:14,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:01:14,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:01:14,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:01:14,116 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:01:14,116 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:01:14,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.c [2025-04-29 11:01:15,382 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536b2da9/a134587a39714d1a924926c862910fd4/FLAG33e8a57fc [2025-04-29 11:01:15,569 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:01:15,570 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.c [2025-04-29 11:01:15,571 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:01:15,571 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:01:15,575 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536b2da9/a134587a39714d1a924926c862910fd4/FLAG33e8a57fc [2025-04-29 11:01:16,582 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536b2da9/a134587a39714d1a924926c862910fd4 [2025-04-29 11:01:16,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:01:16,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:01:16,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:01:16,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:01:16,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:01:16,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6ad2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16, skipping insertion in model container [2025-04-29 11:01:16,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:01:16,730 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:01:16,736 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:01:16,752 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:01:16,765 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:01:16,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16 WrapperNode [2025-04-29 11:01:16,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:01:16,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:01:16,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:01:16,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:01:16,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,795 INFO L138 Inliner]: procedures = 14, calls = 27, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 69 [2025-04-29 11:01:16,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:01:16,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:01:16,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:01:16,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:01:16,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,820 INFO L175 MemorySlicer]: Split 3 memory accesses to 3 slices as follows [1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 1, 1]. The 0 writes are split as follows [0, 0, 0]. [2025-04-29 11:01:16,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,826 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:01:16,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:01:16,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:01:16,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:01:16,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (1/1) ... [2025-04-29 11:01:16,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:01:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:01:16,869 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) [2025-04-29 11:01:16,874 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 [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-04-29 11:01:16,889 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:01:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:01:16,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:01:16,890 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:01:16,954 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:01:16,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:01:17,142 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:01:17,143 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:01:17,260 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:01:17,260 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:01:17,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:01:17 BoogieIcfgContainer [2025-04-29 11:01:17,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:01:17,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:01:17,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:01:17,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:01:17,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:01:16" (1/3) ... [2025-04-29 11:01:17,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43663c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:01:17, skipping insertion in model container [2025-04-29 11:01:17,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:01:16" (2/3) ... [2025-04-29 11:01:17,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43663c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:01:17, skipping insertion in model container [2025-04-29 11:01:17,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:01:17" (3/3) ... [2025-04-29 11:01:17,269 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.c [2025-04-29 11:01:17,280 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:01:17,281 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_29-multiple-protecting2-vesal_true.c that has 2 procedures, 44 locations, 42 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-29 11:01:17,282 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:01:17,323 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:01:17,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 43 transitions, 93 flow [2025-04-29 11:01:17,382 INFO L116 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-04-29 11:01:17,384 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:01:17,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 42 events. 0/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-29 11:01:17,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 43 transitions, 93 flow [2025-04-29 11:01:17,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 35 transitions, 73 flow [2025-04-29 11:01:17,397 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:01:17,404 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;@3337f0b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:01:17,405 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-29 11:01:17,410 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:01:17,410 INFO L116 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-04-29 11:01:17,411 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:01:17,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:01:17,411 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:01:17,411 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-29 11:01:17,415 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:01:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash 609422688, now seen corresponding path program 1 times [2025-04-29 11:01:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:01:17,420 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502314115] [2025-04-29 11:01:17,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:01:17,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:01:17,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 11:01:17,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 11:01:17,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:01:17,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:01:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:01:17,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:01:17,555 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502314115] [2025-04-29 11:01:17,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502314115] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:01:17,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:01:17,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:01:17,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532333720] [2025-04-29 11:01:17,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:01:17,561 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:01:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:01:17,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:01:17,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:01:17,596 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-04-29 11:01:17,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-04-29 11:01:17,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:01:17,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-04-29 11:01:17,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:01:17,784 INFO L116 PetriNetUnfolderBase]: 88/278 cut-off events. [2025-04-29 11:01:17,784 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:01:17,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 278 events. 88/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1258 event pairs, 66 based on Foata normal form. 12/266 useless extension candidates. Maximal degree in co-relation 471. Up to 151 conditions per place. [2025-04-29 11:01:17,790 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 29 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2025-04-29 11:01:17,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 157 flow [2025-04-29 11:01:17,791 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:01:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-29 11:01:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2025-04-29 11:01:17,803 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5406976744186046 [2025-04-29 11:01:17,804 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 73 flow. Second operand 4 states and 93 transitions. [2025-04-29 11:01:17,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 157 flow [2025-04-29 11:01:17,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:01:17,808 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 76 flow [2025-04-29 11:01:17,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2025-04-29 11:01:17,814 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2025-04-29 11:01:17,814 INFO L485 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 76 flow [2025-04-29 11:01:17,814 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-04-29 11:01:17,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:01:17,814 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:01:17,814 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:01:17,814 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-29 11:01:17,815 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:01:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1712234454, now seen corresponding path program 1 times [2025-04-29 11:01:17,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:01:17,815 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638132106] [2025-04-29 11:01:17,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:01:17,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:01:17,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-29 11:01:17,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-29 11:01:17,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:01:17,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:01:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:01:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:01:17,870 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638132106] [2025-04-29 11:01:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638132106] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:01:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:01:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:01:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332681341] [2025-04-29 11:01:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:01:17,871 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:01:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:01:17,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:01:17,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:01:17,876 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-04-29 11:01:17,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-04-29 11:01:17,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:01:17,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-04-29 11:01:17,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:01:18,035 INFO L116 PetriNetUnfolderBase]: 85/290 cut-off events. [2025-04-29 11:01:18,035 INFO L117 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-04-29 11:01:18,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 290 events. 85/290 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1370 event pairs, 22 based on Foata normal form. 12/288 useless extension candidates. Maximal degree in co-relation 508. Up to 89 conditions per place. [2025-04-29 11:01:18,039 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 41 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2025-04-29 11:01:18,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 58 transitions, 214 flow [2025-04-29 11:01:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:01:18,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-29 11:01:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-04-29 11:01:18,041 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2025-04-29 11:01:18,041 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 76 flow. Second operand 4 states and 106 transitions. [2025-04-29 11:01:18,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 58 transitions, 214 flow [2025-04-29 11:01:18,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 58 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-29 11:01:18,045 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 83 flow [2025-04-29 11:01:18,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2025-04-29 11:01:18,046 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2025-04-29 11:01:18,046 INFO L485 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 83 flow [2025-04-29 11:01:18,046 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-04-29 11:01:18,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:01:18,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:01:18,047 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:01:18,048 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-29 11:01:18,048 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:01:18,048 INFO L85 PathProgramCache]: Analyzing trace with hash 68875684, now seen corresponding path program 1 times [2025-04-29 11:01:18,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:01:18,048 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351044929] [2025-04-29 11:01:18,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:01:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:01:18,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:01:18,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:01:18,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:01:18,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:01:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:01:18,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:01:18,173 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351044929] [2025-04-29 11:01:18,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351044929] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:01:18,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:01:18,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-29 11:01:18,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085299262] [2025-04-29 11:01:18,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:01:18,173 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:01:18,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:01:18,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:01:18,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:01:18,195 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2025-04-29 11:01:18,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-04-29 11:01:18,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:01:18,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2025-04-29 11:01:18,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:01:18,369 INFO L116 PetriNetUnfolderBase]: 83/248 cut-off events. [2025-04-29 11:01:18,370 INFO L117 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-04-29 11:01:18,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 248 events. 83/248 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1059 event pairs, 22 based on Foata normal form. 17/263 useless extension candidates. Maximal degree in co-relation 464. Up to 66 conditions per place. [2025-04-29 11:01:18,372 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 48 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2025-04-29 11:01:18,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 244 flow [2025-04-29 11:01:18,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:01:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:01:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2025-04-29 11:01:18,375 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5155038759689923 [2025-04-29 11:01:18,375 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 83 flow. Second operand 6 states and 133 transitions. [2025-04-29 11:01:18,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 244 flow [2025-04-29 11:01:18,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-29 11:01:18,377 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 78 flow [2025-04-29 11:01:18,378 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=78, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2025-04-29 11:01:18,379 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2025-04-29 11:01:18,379 INFO L485 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 78 flow [2025-04-29 11:01:18,379 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-04-29 11:01:18,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:01:18,379 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:01:18,380 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:01:18,380 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-04-29 11:01:18,380 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:01:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2135146522, now seen corresponding path program 1 times [2025-04-29 11:01:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:01:18,381 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001493517] [2025-04-29 11:01:18,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:01:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:01:18,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-29 11:01:18,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-29 11:01:18,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:01:18,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:01:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:01:18,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:01:18,477 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001493517] [2025-04-29 11:01:18,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001493517] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:01:18,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:01:18,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-29 11:01:18,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423366946] [2025-04-29 11:01:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:01:18,478 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:01:18,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:01:18,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:01:18,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:01:18,492 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2025-04-29 11:01:18,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-04-29 11:01:18,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:01:18,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2025-04-29 11:01:18,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:01:18,605 INFO L116 PetriNetUnfolderBase]: 73/226 cut-off events. [2025-04-29 11:01:18,605 INFO L117 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-04-29 11:01:18,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 226 events. 73/226 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 948 event pairs, 22 based on Foata normal form. 12/236 useless extension candidates. Maximal degree in co-relation 432. Up to 66 conditions per place. [2025-04-29 11:01:18,606 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-04-29 11:01:18,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 242 flow [2025-04-29 11:01:18,607 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:01:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:01:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-04-29 11:01:18,608 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2025-04-29 11:01:18,608 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 78 flow. Second operand 6 states and 130 transitions. [2025-04-29 11:01:18,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 242 flow [2025-04-29 11:01:18,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 235 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-29 11:01:18,609 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2025-04-29 11:01:18,609 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2025-04-29 11:01:18,610 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2025-04-29 11:01:18,610 INFO L485 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2025-04-29 11:01:18,610 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-04-29 11:01:18,612 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2025-04-29 11:01:18,612 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-04-29 11:01:18,612 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-04-29 11:01:18,612 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-04-29 11:01:18,612 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-04-29 11:01:18,613 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-04-29 11:01:18,613 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-04-29 11:01:18,613 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-04-29 11:01:18,613 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-04-29 11:01:18,613 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:01:18,613 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-29 11:01:18,618 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:01:18,618 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:01:18,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:01:18 BasicIcfg [2025-04-29 11:01:18,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:01:18,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:01:18,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:01:18,625 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:01:18,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:01:17" (3/4) ... [2025-04-29 11:01:18,627 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:01:18,628 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2025-04-29 11:01:18,630 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2025-04-29 11:01:18,630 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-29 11:01:18,630 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:01:18,682 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:01:18,682 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:01:18,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:01:18,683 INFO L158 Benchmark]: Toolchain (without parser) took 2098.11ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 101.8MB in the end (delta: 11.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2025-04-29 11:01:18,683 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:01:18,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.91ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 99.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:01:18,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.83ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:01:18,685 INFO L158 Benchmark]: Boogie Preprocessor took 40.54ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:01:18,685 INFO L158 Benchmark]: RCFGBuilder took 422.15ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 73.5MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-29 11:01:18,686 INFO L158 Benchmark]: TraceAbstraction took 1361.29ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 107.2MB in the end (delta: -34.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2025-04-29 11:01:18,686 INFO L158 Benchmark]: Witness Printer took 58.07ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 101.8MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:01:18,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.91ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 99.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.83ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.54ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.15ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 73.5MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1361.29ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 107.2MB in the end (delta: -34.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 58.07ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 101.8MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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, 67 locations, 66 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 443 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 11 mSDtfsCounter, 443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 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! [2025-04-29 11:01:18,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE