./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.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 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:50:25,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:50:25,694 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:50:25,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:50:25,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:50:25,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:50:25,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:50:25,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:50:25,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:50:25,717 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:50:25,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:50:25,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:50:25,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:50:25,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:50:25,718 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:50:25,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:50:25,719 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:50:25,720 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:50:25,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:50:25,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:50:25,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:50:25,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:50:25,721 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 -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2025-03-17 15:50:25,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:50:25,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:50:25,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:50:25,944 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:50:25,944 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:50:25,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2025-03-17 15:50:27,034 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aefae887/188c62f55c864a599a0baa09141ca149/FLAG47e84cfc9 [2025-03-17 15:50:27,277 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:50:27,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2025-03-17 15:50:27,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aefae887/188c62f55c864a599a0baa09141ca149/FLAG47e84cfc9 [2025-03-17 15:50:27,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aefae887/188c62f55c864a599a0baa09141ca149 [2025-03-17 15:50:27,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:50:27,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:50:27,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:50:27,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:50:27,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:50:27,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e131198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27, skipping insertion in model container [2025-03-17 15:50:27,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:50:27,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:50:27,533 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:50:27,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:50:27,612 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:50:27,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27 WrapperNode [2025-03-17 15:50:27,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:50:27,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:50:27,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:50:27,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:50:27,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,660 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 515 [2025-03-17 15:50:27,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:50:27,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:50:27,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:50:27,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:50:27,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,689 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 15:50:27,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,696 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:50:27,705 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:50:27,705 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:50:27,705 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:50:27,706 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (1/1) ... [2025-03-17 15:50:27,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:50:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:27,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:50:27,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:50:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2025-03-17 15:50:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2025-03-17 15:50:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:50:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2025-03-17 15:50:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2025-03-17 15:50:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-17 15:50:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-17 15:50:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2025-03-17 15:50:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2025-03-17 15:50:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 15:50:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 15:50:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:50:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2025-03-17 15:50:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2025-03-17 15:50:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:50:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:50:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2025-03-17 15:50:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2025-03-17 15:50:27,837 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:50:27,838 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:50:28,266 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2025-03-17 15:50:28,266 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:50:28,277 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:50:28,279 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:50:28,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:50:28 BoogieIcfgContainer [2025-03-17 15:50:28,280 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:50:28,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:50:28,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:50:28,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:50:28,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:50:27" (1/3) ... [2025-03-17 15:50:28,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60506239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:50:28, skipping insertion in model container [2025-03-17 15:50:28,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:50:27" (2/3) ... [2025-03-17 15:50:28,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60506239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:50:28, skipping insertion in model container [2025-03-17 15:50:28,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:50:28" (3/3) ... [2025-03-17 15:50:28,288 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2025-03-17 15:50:28,298 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:50:28,299 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c that has 8 procedures, 174 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-17 15:50:28,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:50:28,345 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72bad63b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:50:28,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 15:50:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 133 states have (on average 1.586466165413534) internal successors, (211), 135 states have internal predecessors, (211), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-17 15:50:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 15:50:28,358 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:28,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:28,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:28,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:28,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1174867617, now seen corresponding path program 1 times [2025-03-17 15:50:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732620100] [2025-03-17 15:50:28,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:28,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:50:28,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:50:28,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:28,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 15:50:28,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732620100] [2025-03-17 15:50:28,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732620100] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:28,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610397098] [2025-03-17 15:50:28,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:28,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:28,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:28,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:28,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:50:28,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:50:28,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:50:28,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:28,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:28,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 15:50:28,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 15:50:28,744 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:50:28,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610397098] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:50:28,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:50:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 15:50:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774812334] [2025-03-17 15:50:28,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:50:28,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:50:28,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:28,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:50:28,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:50:28,767 INFO L87 Difference]: Start difference. First operand has 174 states, 133 states have (on average 1.586466165413534) internal successors, (211), 135 states have internal predecessors, (211), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:28,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:28,801 INFO L93 Difference]: Finished difference Result 333 states and 547 transitions. [2025-03-17 15:50:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:50:28,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2025-03-17 15:50:28,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:28,808 INFO L225 Difference]: With dead ends: 333 [2025-03-17 15:50:28,809 INFO L226 Difference]: Without dead ends: 172 [2025-03-17 15:50:28,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:50:28,813 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:28,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:50:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-03-17 15:50:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-03-17 15:50:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 132 states have (on average 1.5681818181818181) internal successors, (207), 133 states have internal predecessors, (207), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-17 15:50:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 269 transitions. [2025-03-17 15:50:28,859 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 269 transitions. Word has length 64 [2025-03-17 15:50:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:28,859 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 269 transitions. [2025-03-17 15:50:28,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 269 transitions. [2025-03-17 15:50:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 15:50:28,862 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:28,862 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:28,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 15:50:29,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 15:50:29,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:29,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:29,063 INFO L85 PathProgramCache]: Analyzing trace with hash 533457444, now seen corresponding path program 1 times [2025-03-17 15:50:29,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:29,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632680539] [2025-03-17 15:50:29,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:29,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:50:29,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:50:29,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:29,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:50:29,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:29,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632680539] [2025-03-17 15:50:29,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632680539] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972060955] [2025-03-17 15:50:29,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:29,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:29,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:29,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:29,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:50:29,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:50:29,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:50:29,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:29,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:29,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:50:29,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:50:29,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:50:29,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972060955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:50:29,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:50:29,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:50:29,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789160533] [2025-03-17 15:50:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:50:29,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:50:29,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:29,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:50:29,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:50:29,516 INFO L87 Difference]: Start difference. First operand 172 states and 269 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:50:29,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:29,673 INFO L93 Difference]: Finished difference Result 375 states and 579 transitions. [2025-03-17 15:50:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:50:29,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2025-03-17 15:50:29,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:29,675 INFO L225 Difference]: With dead ends: 375 [2025-03-17 15:50:29,675 INFO L226 Difference]: Without dead ends: 219 [2025-03-17 15:50:29,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:50:29,677 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 387 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:29,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 698 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:50:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-17 15:50:29,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2025-03-17 15:50:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 170 states have (on average 1.5529411764705883) internal successors, (264), 171 states have internal predecessors, (264), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-17 15:50:29,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 334 transitions. [2025-03-17 15:50:29,700 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 334 transitions. Word has length 64 [2025-03-17 15:50:29,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:29,700 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 334 transitions. [2025-03-17 15:50:29,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:50:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 334 transitions. [2025-03-17 15:50:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 15:50:29,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:29,704 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:29,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:50:29,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-17 15:50:29,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:29,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash 50881972, now seen corresponding path program 1 times [2025-03-17 15:50:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799900873] [2025-03-17 15:50:29,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:29,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 15:50:29,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 15:50:29,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:29,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:50:30,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:30,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799900873] [2025-03-17 15:50:30,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799900873] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:30,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805500888] [2025-03-17 15:50:30,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:30,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:30,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:30,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:30,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:50:30,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 15:50:30,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 15:50:30,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:30,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:30,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:50:30,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:50:30,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:50:30,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805500888] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:50:30,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:50:30,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:50:30,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871229529] [2025-03-17 15:50:30,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:50:30,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:50:30,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:30,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:50:30,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:50:30,187 INFO L87 Difference]: Start difference. First operand 217 states and 334 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:50:30,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:30,320 INFO L93 Difference]: Finished difference Result 376 states and 579 transitions. [2025-03-17 15:50:30,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:50:30,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2025-03-17 15:50:30,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:30,322 INFO L225 Difference]: With dead ends: 376 [2025-03-17 15:50:30,322 INFO L226 Difference]: Without dead ends: 220 [2025-03-17 15:50:30,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:50:30,323 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 387 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:30,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 698 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:50:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-03-17 15:50:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2025-03-17 15:50:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 172 states have (on average 1.5465116279069768) internal successors, (266), 173 states have internal predecessors, (266), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-17 15:50:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 336 transitions. [2025-03-17 15:50:30,343 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 336 transitions. Word has length 65 [2025-03-17 15:50:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:30,344 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 336 transitions. [2025-03-17 15:50:30,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:50:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 336 transitions. [2025-03-17 15:50:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 15:50:30,347 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:30,347 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:30,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:50:30,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:30,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:30,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:30,549 INFO L85 PathProgramCache]: Analyzing trace with hash -601863891, now seen corresponding path program 1 times [2025-03-17 15:50:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:30,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252788093] [2025-03-17 15:50:30,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:30,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:50:30,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:50:30,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:30,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:50:30,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:30,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252788093] [2025-03-17 15:50:30,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252788093] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:30,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093447417] [2025-03-17 15:50:30,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:30,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:30,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:30,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:30,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:50:30,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:50:30,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:50:30,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:30,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:30,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:50:30,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:50:30,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:50:30,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093447417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:50:30,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:50:30,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-17 15:50:30,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257904147] [2025-03-17 15:50:30,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:50:30,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:50:30,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:30,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:50:30,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:50:30,812 INFO L87 Difference]: Start difference. First operand 219 states and 336 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:30,835 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2025-03-17 15:50:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:50:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2025-03-17 15:50:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:30,838 INFO L225 Difference]: With dead ends: 219 [2025-03-17 15:50:30,838 INFO L226 Difference]: Without dead ends: 218 [2025-03-17 15:50:30,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:50:30,839 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 108 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:30,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 632 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:50:30,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-03-17 15:50:30,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2025-03-17 15:50:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 172 states have (on average 1.5406976744186047) internal successors, (265), 172 states have internal predecessors, (265), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-17 15:50:30,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 335 transitions. [2025-03-17 15:50:30,859 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 335 transitions. Word has length 67 [2025-03-17 15:50:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:30,859 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 335 transitions. [2025-03-17 15:50:30,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 335 transitions. [2025-03-17 15:50:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 15:50:30,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:30,860 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:30,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:50:31,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:31,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:31,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1477911427, now seen corresponding path program 1 times [2025-03-17 15:50:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782771344] [2025-03-17 15:50:31,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:31,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:31,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 15:50:31,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 15:50:31,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:31,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:50:31,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782771344] [2025-03-17 15:50:31,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782771344] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255226355] [2025-03-17 15:50:31,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:31,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:31,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:31,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:31,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:50:31,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 15:50:31,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 15:50:31,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:31,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:31,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:50:31,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:50:31,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:50:31,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255226355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:50:31,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:50:31,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-17 15:50:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627485785] [2025-03-17 15:50:31,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:50:31,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:50:31,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:31,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:50:31,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:50:31,302 INFO L87 Difference]: Start difference. First operand 218 states and 335 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:31,338 INFO L93 Difference]: Finished difference Result 297 states and 465 transitions. [2025-03-17 15:50:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:50:31,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2025-03-17 15:50:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:31,341 INFO L225 Difference]: With dead ends: 297 [2025-03-17 15:50:31,342 INFO L226 Difference]: Without dead ends: 296 [2025-03-17 15:50:31,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:50:31,343 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 101 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:31,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 787 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:50:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2025-03-17 15:50:31,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2025-03-17 15:50:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 227 states have (on average 1.5330396475770924) internal successors, (348), 227 states have internal predecessors, (348), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2025-03-17 15:50:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 464 transitions. [2025-03-17 15:50:31,361 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 464 transitions. Word has length 68 [2025-03-17 15:50:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:31,362 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 464 transitions. [2025-03-17 15:50:31,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:50:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 464 transitions. [2025-03-17 15:50:31,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 15:50:31,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:50:31,365 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:50:31,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:50:31,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:31,570 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 15:50:31,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:50:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -381531045, now seen corresponding path program 1 times [2025-03-17 15:50:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:50:31,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221942697] [2025-03-17 15:50:31,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:50:31,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-17 15:50:31,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 15:50:31,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:31,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-17 15:50:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:50:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221942697] [2025-03-17 15:50:31,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221942697] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:50:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284698897] [2025-03-17 15:50:31,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:50:31,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:31,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:50:31,709 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:50:31,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:50:31,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-17 15:50:31,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 15:50:31,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:50:31,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:50:31,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:50:31,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:50:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 15:50:31,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:50:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 15:50:32,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284698897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:50:32,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:50:32,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2025-03-17 15:50:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577592463] [2025-03-17 15:50:32,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:50:32,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:50:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:50:32,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:50:32,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:50:32,068 INFO L87 Difference]: Start difference. First operand 296 states and 464 transitions. Second operand has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2025-03-17 15:50:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:50:32,295 INFO L93 Difference]: Finished difference Result 688 states and 1088 transitions. [2025-03-17 15:50:32,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:50:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) Word has length 124 [2025-03-17 15:50:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:50:32,297 INFO L225 Difference]: With dead ends: 688 [2025-03-17 15:50:32,297 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 15:50:32,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:50:32,299 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 753 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:50:32,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1890 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:50:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 15:50:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 15:50:32,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:50:32,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 15:50:32,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2025-03-17 15:50:32,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:50:32,300 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 15:50:32,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2025-03-17 15:50:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 15:50:32,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 15:50:32,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-17 15:50:32,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-17 15:50:32,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:50:32,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:50:32,510 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 15:50:32,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 15:50:32,969 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 15:50:32,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:50:32 BoogieIcfgContainer [2025-03-17 15:50:32,981 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 15:50:32,982 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 15:50:32,982 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 15:50:32,982 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 15:50:32,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:50:28" (3/4) ... [2025-03-17 15:50:32,984 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 15:50:32,987 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2025-03-17 15:50:32,987 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2025-03-17 15:50:32,987 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2025-03-17 15:50:32,988 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assert [2025-03-17 15:50:32,988 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2025-03-17 15:50:32,988 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-17 15:50:32,988 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2025-03-17 15:50:32,996 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-17 15:50:33,000 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 15:50:33,001 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 15:50:33,001 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 15:50:33,074 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 15:50:33,074 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 15:50:33,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 15:50:33,075 INFO L158 Benchmark]: Toolchain (without parser) took 5772.20ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 67.3MB in the end (delta: 65.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2025-03-17 15:50:33,075 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:50:33,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.81ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 114.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 15:50:33,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.39ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 111.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:50:33,076 INFO L158 Benchmark]: Boogie Preprocessor took 43.51ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 107.7MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:50:33,076 INFO L158 Benchmark]: IcfgBuilder took 574.70ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 66.3MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-17 15:50:33,076 INFO L158 Benchmark]: TraceAbstraction took 4699.69ms. Allocated memory is still 167.8MB. Free memory was 65.8MB in the beginning and 79.0MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:50:33,076 INFO L158 Benchmark]: Witness Printer took 92.95ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 67.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:50:33,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.81ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 114.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.39ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 111.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.51ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 107.7MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 574.70ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 66.3MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4699.69ms. Allocated memory is still 167.8MB. Free memory was 65.8MB in the beginning and 79.0MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 92.95ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 67.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 174 locations, 304 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1838 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1736 mSDsluCounter, 4976 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3447 mSDsCounter, 125 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 125 mSolverCounterUnsat, 1529 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 605 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1015 ConstructedInterpolants, 0 QuantifiedInterpolants, 1597 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2593 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 244/320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Location Invariant Derived location invariant: (((0 <= i2) && (i2 <= 2147483646)) && (((short) nomsg + 1) <= 0)) RESULT: Ultimate proved your program to be correct! [2025-03-17 15:50:33,090 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