./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/verifythis/elimination_max.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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:48:13,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:48:13,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:48:13,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:48:13,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:48:13,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:48:13,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:48:13,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:48:13,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:48:13,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:48:13,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:48:13,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:48:13,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:48:13,412 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:48:13,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:48:13,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:48:13,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:48:13,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:48:13,413 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 -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2025-03-09 02:48:13,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:48:13,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:48:13,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:48:13,672 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:48:13,672 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:48:13,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2025-03-09 02:48:14,830 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af36f05ad/3b32783c95a640f59d91e35400c0806a/FLAG97d9d33cd [2025-03-09 02:48:15,056 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:48:15,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2025-03-09 02:48:15,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af36f05ad/3b32783c95a640f59d91e35400c0806a/FLAG97d9d33cd [2025-03-09 02:48:15,403 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af36f05ad/3b32783c95a640f59d91e35400c0806a [2025-03-09 02:48:15,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:48:15,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:48:15,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:48:15,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:48:15,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:48:15,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a4cbfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15, skipping insertion in model container [2025-03-09 02:48:15,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:48:15,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:48:15,549 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:48:15,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:48:15,572 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:48:15,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15 WrapperNode [2025-03-09 02:48:15,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:48:15,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:48:15,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:48:15,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:48:15,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,593 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2025-03-09 02:48:15,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:48:15,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:48:15,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:48:15,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:48:15,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,608 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-09 02:48:15,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:48:15,617 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:48:15,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:48:15,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:48:15,618 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (1/1) ... [2025-03-09 02:48:15,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:48:15,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:15,645 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) [2025-03-09 02:48:15,647 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 [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:48:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:48:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 02:48:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:48:15,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:48:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 02:48:15,725 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:48:15,727 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:48:15,875 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-03-09 02:48:15,878 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:48:15,884 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:48:15,885 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:48:15,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:48:15 BoogieIcfgContainer [2025-03-09 02:48:15,886 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:48:15,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:48:15,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:48:15,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:48:15,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:48:15" (1/3) ... [2025-03-09 02:48:15,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4b1f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:48:15, skipping insertion in model container [2025-03-09 02:48:15,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:15" (2/3) ... [2025-03-09 02:48:15,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4b1f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:48:15, skipping insertion in model container [2025-03-09 02:48:15,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:48:15" (3/3) ... [2025-03-09 02:48:15,894 INFO L128 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2025-03-09 02:48:15,906 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:48:15,907 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elimination_max.c that has 3 procedures, 42 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-09 02:48:15,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:48:15,956 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;@a5bf0f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:48:15,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-09 02:48:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 35 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 02:48:15,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:15,965 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:15,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:15,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash -282269056, now seen corresponding path program 1 times [2025-03-09 02:48:15,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:15,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235431961] [2025-03-09 02:48:15,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:15,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:16,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 02:48:16,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 02:48:16,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:16,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235431961] [2025-03-09 02:48:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235431961] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:16,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:48:16,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:48:16,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835054919] [2025-03-09 02:48:16,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:16,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:48:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:16,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:48:16,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:48:16,095 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 35 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:16,107 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2025-03-09 02:48:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:48:16,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2025-03-09 02:48:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:16,113 INFO L225 Difference]: With dead ends: 80 [2025-03-09 02:48:16,113 INFO L226 Difference]: Without dead ends: 38 [2025-03-09 02:48:16,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:48:16,117 INFO L435 NwaCegarLoop]: 45 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, 45 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 [2025-03-09 02:48:16,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-03-09 02:48:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-03-09 02:48:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 31 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2025-03-09 02:48:16,140 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 10 [2025-03-09 02:48:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:16,140 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2025-03-09 02:48:16,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2025-03-09 02:48:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 02:48:16,141 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:16,141 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:16,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:48:16,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:16,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash -253639905, now seen corresponding path program 1 times [2025-03-09 02:48:16,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:16,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927905142] [2025-03-09 02:48:16,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:16,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 02:48:16,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 02:48:16,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927905142] [2025-03-09 02:48:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927905142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:16,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:48:16,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:48:16,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545868586] [2025-03-09 02:48:16,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:16,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:48:16,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:16,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:48:16,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:48:16,301 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:16,343 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2025-03-09 02:48:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:48:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2025-03-09 02:48:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:16,345 INFO L225 Difference]: With dead ends: 38 [2025-03-09 02:48:16,345 INFO L226 Difference]: Without dead ends: 36 [2025-03-09 02:48:16,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:48:16,346 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:16,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 102 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-09 02:48:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-09 02:48:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 29 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2025-03-09 02:48:16,355 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 10 [2025-03-09 02:48:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:16,357 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2025-03-09 02:48:16,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,357 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2025-03-09 02:48:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-09 02:48:16,358 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:16,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:16,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 02:48:16,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:16,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1442526716, now seen corresponding path program 1 times [2025-03-09 02:48:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:16,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821527189] [2025-03-09 02:48:16,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:16,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 02:48:16,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 02:48:16,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821527189] [2025-03-09 02:48:16,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821527189] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:16,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:48:16,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:48:16,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911701276] [2025-03-09 02:48:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:16,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:48:16,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:16,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:48:16,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:48:16,464 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:16,500 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2025-03-09 02:48:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:48:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-03-09 02:48:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:16,501 INFO L225 Difference]: With dead ends: 57 [2025-03-09 02:48:16,501 INFO L226 Difference]: Without dead ends: 55 [2025-03-09 02:48:16,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:48:16,502 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:16,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:16,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-09 02:48:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2025-03-09 02:48:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 35 states have internal predecessors, (42), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2025-03-09 02:48:16,510 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 14 [2025-03-09 02:48:16,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:16,510 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2025-03-09 02:48:16,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2025-03-09 02:48:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-09 02:48:16,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:16,511 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:16,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 02:48:16,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:16,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1442526876, now seen corresponding path program 1 times [2025-03-09 02:48:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:16,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047886366] [2025-03-09 02:48:16,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:16,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:16,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 02:48:16,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 02:48:16,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047886366] [2025-03-09 02:48:16,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047886366] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:48:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:48:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144050020] [2025-03-09 02:48:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:16,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:48:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:16,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:48:16,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:48:16,701 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:16,753 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2025-03-09 02:48:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:48:16,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-03-09 02:48:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:16,755 INFO L225 Difference]: With dead ends: 71 [2025-03-09 02:48:16,755 INFO L226 Difference]: Without dead ends: 36 [2025-03-09 02:48:16,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:48:16,757 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:16,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 99 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-09 02:48:16,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-09 02:48:16,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2025-03-09 02:48:16,762 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 14 [2025-03-09 02:48:16,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:16,763 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2025-03-09 02:48:16,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:16,763 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2025-03-09 02:48:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-09 02:48:16,763 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:16,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:16,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:48:16,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:16,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash -651103676, now seen corresponding path program 1 times [2025-03-09 02:48:16,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:16,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954620087] [2025-03-09 02:48:16,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:16,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 02:48:16,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 02:48:16,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:16,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954620087] [2025-03-09 02:48:16,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954620087] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:16,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673762172] [2025-03-09 02:48:16,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:16,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:16,825 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) [2025-03-09 02:48:16,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:48:16,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 02:48:16,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 02:48:16,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:16,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:16,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:48:16,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:16,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:48:16,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673762172] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:16,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:48:16,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 02:48:16,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669685449] [2025-03-09 02:48:16,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:16,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:48:16,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:16,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:48:16,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:48:16,950 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:17,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:17,007 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2025-03-09 02:48:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:48:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2025-03-09 02:48:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:17,008 INFO L225 Difference]: With dead ends: 47 [2025-03-09 02:48:17,008 INFO L226 Difference]: Without dead ends: 46 [2025-03-09 02:48:17,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:48:17,009 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 19 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:17,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 115 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-03-09 02:48:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2025-03-09 02:48:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-03-09 02:48:17,015 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 18 [2025-03-09 02:48:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:17,015 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-03-09 02:48:17,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-03-09 02:48:17,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-09 02:48:17,016 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:17,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:17,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:17,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:17,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:17,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:17,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1290622509, now seen corresponding path program 1 times [2025-03-09 02:48:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:17,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527640700] [2025-03-09 02:48:17,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:17,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 02:48:17,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 02:48:17,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:17,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:17,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527640700] [2025-03-09 02:48:17,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527640700] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566897370] [2025-03-09 02:48:17,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:17,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:17,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:17,291 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) [2025-03-09 02:48:17,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:48:17,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 02:48:17,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 02:48:17,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:17,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:17,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:48:17,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:17,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:48:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:48:17,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566897370] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:48:17,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:48:17,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 02:48:17,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022047644] [2025-03-09 02:48:17,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:48:17,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:48:17,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:17,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:48:17,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:48:17,424 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:17,534 INFO L93 Difference]: Finished difference Result 92 states and 113 transitions. [2025-03-09 02:48:17,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:48:17,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2025-03-09 02:48:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:17,535 INFO L225 Difference]: With dead ends: 92 [2025-03-09 02:48:17,535 INFO L226 Difference]: Without dead ends: 91 [2025-03-09 02:48:17,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:48:17,536 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 50 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:17,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 193 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:48:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2025-03-09 02:48:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 47. [2025-03-09 02:48:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 40 states have internal predecessors, (46), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:48:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2025-03-09 02:48:17,549 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 19 [2025-03-09 02:48:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:17,549 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2025-03-09 02:48:17,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:48:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2025-03-09 02:48:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-09 02:48:17,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:17,550 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] [2025-03-09 02:48:17,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:17,751 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,SelfDestructingSolverStorable5 [2025-03-09 02:48:17,751 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:17,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2073517473, now seen corresponding path program 1 times [2025-03-09 02:48:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:17,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747317402] [2025-03-09 02:48:17,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:17,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 02:48:17,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 02:48:17,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:17,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:48:17,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747317402] [2025-03-09 02:48:17,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747317402] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:17,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:48:17,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:48:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684156612] [2025-03-09 02:48:17,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:17,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:48:17,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:17,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:48:17,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:48:17,793 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:48:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:17,812 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2025-03-09 02:48:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:48:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2025-03-09 02:48:17,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:17,813 INFO L225 Difference]: With dead ends: 54 [2025-03-09 02:48:17,813 INFO L226 Difference]: Without dead ends: 52 [2025-03-09 02:48:17,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:48:17,814 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:17,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-09 02:48:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-09 02:48:17,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 44 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:48:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2025-03-09 02:48:17,823 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 32 [2025-03-09 02:48:17,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:17,823 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2025-03-09 02:48:17,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:48:17,824 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2025-03-09 02:48:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-09 02:48:17,824 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:17,824 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:17,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 02:48:17,825 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:17,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:17,825 INFO L85 PathProgramCache]: Analyzing trace with hash 978064469, now seen corresponding path program 2 times [2025-03-09 02:48:17,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:17,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262548692] [2025-03-09 02:48:17,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:48:17,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:17,834 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-03-09 02:48:17,842 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 31 statements. [2025-03-09 02:48:17,842 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 02:48:17,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:48:17,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262548692] [2025-03-09 02:48:17,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262548692] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671122373] [2025-03-09 02:48:17,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:48:17,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:17,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:17,875 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) [2025-03-09 02:48:17,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:48:17,907 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-03-09 02:48:17,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 31 statements. [2025-03-09 02:48:17,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 02:48:17,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:17,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:48:17,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:48:17,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:48:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:48:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671122373] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:48:18,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:48:18,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-09 02:48:18,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455937522] [2025-03-09 02:48:18,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:48:18,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:48:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:18,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:48:18,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:48:18,015 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:48:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:18,093 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2025-03-09 02:48:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:48:18,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2025-03-09 02:48:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:18,095 INFO L225 Difference]: With dead ends: 68 [2025-03-09 02:48:18,095 INFO L226 Difference]: Without dead ends: 67 [2025-03-09 02:48:18,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:48:18,095 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 70 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:18,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 142 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:18,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-03-09 02:48:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 35. [2025-03-09 02:48:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:48:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-03-09 02:48:18,100 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 31 [2025-03-09 02:48:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:18,100 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-03-09 02:48:18,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:48:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-03-09 02:48:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:48:18,101 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:18,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:18,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:18,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:18,302 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:18,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash 421158505, now seen corresponding path program 1 times [2025-03-09 02:48:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:18,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123830887] [2025-03-09 02:48:18,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:18,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:18,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:48:18,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:48:18,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:18,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:48:18,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123830887] [2025-03-09 02:48:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123830887] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518592579] [2025-03-09 02:48:18,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:18,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:18,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:18,421 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) [2025-03-09 02:48:18,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:48:18,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:48:18,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:48:18,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:18,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:18,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:48:18,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:48:18,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:48:18,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518592579] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:18,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:48:18,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-03-09 02:48:18,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505901445] [2025-03-09 02:48:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:18,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:48:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:18,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:48:18,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:48:18,559 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-03-09 02:48:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:18,645 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2025-03-09 02:48:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:48:18,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 41 [2025-03-09 02:48:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:18,645 INFO L225 Difference]: With dead ends: 58 [2025-03-09 02:48:18,645 INFO L226 Difference]: Without dead ends: 37 [2025-03-09 02:48:18,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:48:18,646 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 8 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:18,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 138 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-09 02:48:18,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2025-03-09 02:48:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:48:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2025-03-09 02:48:18,653 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 41 [2025-03-09 02:48:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:18,654 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2025-03-09 02:48:18,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-03-09 02:48:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2025-03-09 02:48:18,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:48:18,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:18,657 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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] [2025-03-09 02:48:18,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:18,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:18,861 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:18,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2029597985, now seen corresponding path program 1 times [2025-03-09 02:48:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716102023] [2025-03-09 02:48:18,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:18,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:48:18,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:48:18,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:18,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-09 02:48:18,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:18,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716102023] [2025-03-09 02:48:18,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716102023] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:18,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777361911] [2025-03-09 02:48:18,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:18,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:18,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:18,938 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) [2025-03-09 02:48:18,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:48:18,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:48:18,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:48:18,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:18,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:18,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:48:18,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-09 02:48:19,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:48:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777361911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:48:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:48:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 02:48:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267991994] [2025-03-09 02:48:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:48:19,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:48:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:19,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:48:19,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:48:19,023 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 02:48:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:19,049 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2025-03-09 02:48:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:48:19,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2025-03-09 02:48:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:19,051 INFO L225 Difference]: With dead ends: 36 [2025-03-09 02:48:19,051 INFO L226 Difference]: Without dead ends: 35 [2025-03-09 02:48:19,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:48:19,052 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:19,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 103 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:19,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-09 02:48:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-09 02:48:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:48:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-03-09 02:48:19,060 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 45 [2025-03-09 02:48:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:19,060 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-03-09 02:48:19,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 02:48:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-03-09 02:48:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:48:19,062 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:19,062 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 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] [2025-03-09 02:48:19,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:19,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-09 02:48:19,263 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:19,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:19,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1506971932, now seen corresponding path program 1 times [2025-03-09 02:48:19,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:19,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376498477] [2025-03-09 02:48:19,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:19,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:48:19,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:48:19,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:19,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-09 02:48:19,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376498477] [2025-03-09 02:48:19,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376498477] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763378458] [2025-03-09 02:48:19,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:19,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:19,339 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) [2025-03-09 02:48:19,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:48:19,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:48:19,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:48:19,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:48:19,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:19,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:48:19,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-09 02:48:19,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:48:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-09 02:48:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763378458] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:48:19,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:48:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 02:48:19,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849893746] [2025-03-09 02:48:19,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:48:19,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:48:19,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:19,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:48:19,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:48:19,470 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:48:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:19,517 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2025-03-09 02:48:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:48:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 46 [2025-03-09 02:48:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:19,518 INFO L225 Difference]: With dead ends: 51 [2025-03-09 02:48:19,518 INFO L226 Difference]: Without dead ends: 50 [2025-03-09 02:48:19,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:48:19,519 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:19,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-09 02:48:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-03-09 02:48:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:48:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2025-03-09 02:48:19,528 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 46 [2025-03-09 02:48:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:19,528 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2025-03-09 02:48:19,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:48:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2025-03-09 02:48:19,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-09 02:48:19,530 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:19,530 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:19,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:19,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:19,731 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:19,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:19,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1588790686, now seen corresponding path program 2 times [2025-03-09 02:48:19,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:19,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128374289] [2025-03-09 02:48:19,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:48:19,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:19,741 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-03-09 02:48:19,754 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-03-09 02:48:19,755 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:48:19,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-09 02:48:19,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:19,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128374289] [2025-03-09 02:48:19,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128374289] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:19,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354145947] [2025-03-09 02:48:19,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:48:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:19,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:19,886 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:48:19,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:48:19,923 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-03-09 02:48:19,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-03-09 02:48:19,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:48:19,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:19,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:48:19,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-09 02:48:20,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:48:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2025-03-09 02:48:20,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354145947] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:48:20,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:48:20,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 26 [2025-03-09 02:48:20,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475099277] [2025-03-09 02:48:20,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:48:20,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-09 02:48:20,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:20,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-09 02:48:20,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2025-03-09 02:48:20,283 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 26 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 26 states have internal predecessors, (69), 8 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2025-03-09 02:48:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:20,463 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2025-03-09 02:48:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 02:48:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 26 states have internal predecessors, (69), 8 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 73 [2025-03-09 02:48:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:20,465 INFO L225 Difference]: With dead ends: 89 [2025-03-09 02:48:20,465 INFO L226 Difference]: Without dead ends: 55 [2025-03-09 02:48:20,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 126 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2025-03-09 02:48:20,466 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:20,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 298 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:48:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-09 02:48:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2025-03-09 02:48:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 43 states have internal predecessors, (45), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:48:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2025-03-09 02:48:20,473 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 73 [2025-03-09 02:48:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:20,473 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2025-03-09 02:48:20,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 26 states have internal predecessors, (69), 8 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2025-03-09 02:48:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2025-03-09 02:48:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-09 02:48:20,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:20,474 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:20,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 02:48:20,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:20,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-09 02:48:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1865876394, now seen corresponding path program 3 times [2025-03-09 02:48:20,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:20,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292537960] [2025-03-09 02:48:20,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:48:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:48:20,683 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 77 statements into 6 equivalence classes. [2025-03-09 02:48:20,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 35 of 77 statements. [2025-03-09 02:48:20,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 02:48:20,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-09 02:48:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:48:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292537960] [2025-03-09 02:48:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292537960] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:48:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100585700] [2025-03-09 02:48:20,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:48:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:48:20,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:20,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:48:20,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 02:48:20,799 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 77 statements into 6 equivalence classes. [2025-03-09 02:48:20,812 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 35 of 77 statements. [2025-03-09 02:48:20,813 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 02:48:20,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:48:20,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:48:20,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:48:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-09 02:48:20,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:48:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-09 02:48:20,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100585700] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:48:20,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:48:20,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2025-03-09 02:48:20,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608070180] [2025-03-09 02:48:20,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:48:20,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:48:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:48:20,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:48:20,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:48:20,966 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-09 02:48:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:48:21,024 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2025-03-09 02:48:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:48:21,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2025-03-09 02:48:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:48:21,024 INFO L225 Difference]: With dead ends: 54 [2025-03-09 02:48:21,024 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 02:48:21,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:48:21,025 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:48:21,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:48:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 02:48:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 02:48:21,026 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) [2025-03-09 02:48:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 02:48:21,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2025-03-09 02:48:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:48:21,026 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 02:48:21,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-09 02:48:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 02:48:21,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 02:48:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2025-03-09 02:48:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-03-09 02:48:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-03-09 02:48:21,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-09 02:48:21,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 02:48:21,235 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:48:21,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 02:48:21,964 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 02:48:21,976 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2025-03-09 02:48:21,977 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-03-09 02:48:21,977 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-03-09 02:48:21,977 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2025-03-09 02:48:21,977 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-03-09 02:48:21,977 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-03-09 02:48:21,979 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-03-09 02:48:21,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 02:48:21 BoogieIcfgContainer [2025-03-09 02:48:21,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 02:48:21,981 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 02:48:21,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 02:48:21,981 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 02:48:21,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:48:15" (3/4) ... [2025-03-09 02:48:21,983 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 02:48:21,987 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-09 02:48:21,987 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-09 02:48:21,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-09 02:48:21,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 02:48:21,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 02:48:21,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 02:48:22,047 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 02:48:22,047 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 02:48:22,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 02:48:22,048 INFO L158 Benchmark]: Toolchain (without parser) took 6642.57ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 106.0MB in the beginning and 174.9MB in the end (delta: -68.9MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,048 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:48:22,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.47ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.91ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 947.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:48:22,049 INFO L158 Benchmark]: Boogie Preprocessor took 21.55ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,049 INFO L158 Benchmark]: IcfgBuilder took 269.44ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 78.4MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,049 INFO L158 Benchmark]: TraceAbstraction took 6092.47ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 78.4MB in the beginning and 181.8MB in the end (delta: -103.4MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,049 INFO L158 Benchmark]: Witness Printer took 66.78ms. Allocated memory is still 335.5MB. Free memory was 181.8MB in the beginning and 174.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:48:22,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.47ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.91ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 947.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.55ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 269.44ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 78.4MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6092.47ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 78.4MB in the beginning and 181.8MB in the end (delta: -103.4MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. * Witness Printer took 66.78ms. Allocated memory is still 335.5MB. Free memory was 181.8MB in the beginning and 174.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] * 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: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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 3 procedures, 42 locations, 52 edges, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 1657 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1242 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 826 IncrementalHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 415 mSDtfsCounter, 826 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 665 GetRequests, 549 SyntacticMatches, 4 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=12, InterpolantAutomatonStates: 93, 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, 13 MinimizatonAttempts, 102 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 780 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 2146 SizeOfPredicates, 12 NumberOfNonLiveVariables, 984 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 858/999 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 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Location Invariant Derived location invariant: (((((y <= 2147483646) && (x == 0)) && (0 <= n)) || ((((y <= 2147483646) && (1 <= x)) && (x <= 2147483646)) && (0 <= n))) && (n <= 1073741823)) - InvariantResult [Line: 45]: Location Invariant Derived location invariant: ((((((1 <= i) && (x == 0)) && (n <= 1)) && (0 <= n)) || ((((((0 <= x) && (1 <= i)) && (i <= 2147483646)) && (n <= 1073741823)) && (x <= 2147483646)) && (0 <= n))) || (((((i == 0) && (0 <= x)) && (n <= 1073741823)) && (x <= 2147483646)) && (0 <= n))) RESULT: Ultimate proved your program to be correct! [2025-03-09 02:48:22,063 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