./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-bwb/and-01-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-bwb/and-01-false.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash fb97abcdacf74b7d5d4aa2facade76810ebe799b4569f70754f3cc3f1f91fdac --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:41:56,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:41:56,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:41:56,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:41:56,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:41:56,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:41:56,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:41:56,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:41:56,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:41:56,284 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:41:56,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:41:56,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:41:56,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:41:56,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:41:56,285 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:41:56,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:41:56,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:41:56,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:41:56,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:41:56,286 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:41:56,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:41:56,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:41:56,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:41:56,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:41:56,287 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:41:56,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:41:56,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:41:56,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:41:56,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:41:56,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:41:56,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:41:56,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:41:56,288 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb97abcdacf74b7d5d4aa2facade76810ebe799b4569f70754f3cc3f1f91fdac [2025-03-17 14:41:56,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:41:56,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:41:56,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:41:56,554 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:41:56,555 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:41:56,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-01-false.c [2025-03-17 14:41:57,696 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad922eb93/277a51a0e35b4bb1b7f1907fe9b54af3/FLAGbdab36c61 [2025-03-17 14:41:57,923 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:41:57,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01-false.c [2025-03-17 14:41:57,931 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad922eb93/277a51a0e35b4bb1b7f1907fe9b54af3/FLAGbdab36c61 [2025-03-17 14:41:57,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad922eb93/277a51a0e35b4bb1b7f1907fe9b54af3 [2025-03-17 14:41:57,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:41:57,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:41:57,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:41:57,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:41:57,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:41:57,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:41:57" (1/1) ... [2025-03-17 14:41:57,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6ac75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:57, skipping insertion in model container [2025-03-17 14:41:57,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:41:57" (1/1) ... [2025-03-17 14:41:57,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:41:58,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:41:58,094 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:41:58,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:41:58,113 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:41:58,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58 WrapperNode [2025-03-17 14:41:58,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:41:58,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:41:58,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:41:58,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:41:58,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,131 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2025-03-17 14:41:58,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:41:58,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:41:58,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:41:58,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:41:58,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,141 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:41:58,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,144 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:41:58,147 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:41:58,147 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:41:58,147 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:41:58,149 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (1/1) ... [2025-03-17 14:41:58,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:41:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:41:58,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:41:58,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:41:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:41:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:41:58,226 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:41:58,227 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:41:58,318 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-17 14:41:58,319 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:41:58,332 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:41:58,332 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:41:58,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:41:58 BoogieIcfgContainer [2025-03-17 14:41:58,332 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:41:58,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:41:58,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:41:58,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:41:58,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:41:57" (1/3) ... [2025-03-17 14:41:58,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e1a8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:41:58, skipping insertion in model container [2025-03-17 14:41:58,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:41:58" (2/3) ... [2025-03-17 14:41:58,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e1a8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:41:58, skipping insertion in model container [2025-03-17 14:41:58,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:41:58" (3/3) ... [2025-03-17 14:41:58,339 INFO L128 eAbstractionObserver]: Analyzing ICFG and-01-false.c [2025-03-17 14:41:58,350 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:41:58,352 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG and-01-false.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-17 14:41:58,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:41:58,392 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;@268e8333, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:41:58,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 14:41:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 14:41:58,398 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:41:58,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 14:41:58,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:41:58,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:41:58,402 INFO L85 PathProgramCache]: Analyzing trace with hash 42667, now seen corresponding path program 1 times [2025-03-17 14:41:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:41:58,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647600811] [2025-03-17 14:41:58,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:41:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:41:58,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:41:58,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:41:58,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:41:58,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:58,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:41:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647600811] [2025-03-17 14:41:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647600811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:41:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:41:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:41:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387964462] [2025-03-17 14:41:58,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:41:58,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:41:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:41:58,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:41:58,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:41:58,544 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:41:58,587 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2025-03-17 14:41:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:41:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2025-03-17 14:41:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:41:58,593 INFO L225 Difference]: With dead ends: 16 [2025-03-17 14:41:58,593 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 14:41:58,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:41:58,596 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:41:58,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:41:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 14:41:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2025-03-17 14:41:58,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2025-03-17 14:41:58,616 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 3 [2025-03-17 14:41:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:41:58,616 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2025-03-17 14:41:58,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2025-03-17 14:41:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 14:41:58,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:41:58,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 14:41:58,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:41:58,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:41:58,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:41:58,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1322655, now seen corresponding path program 1 times [2025-03-17 14:41:58,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:41:58,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553465413] [2025-03-17 14:41:58,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:41:58,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:41:58,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:41:58,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:41:58,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:41:58,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:58,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:41:58,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553465413] [2025-03-17 14:41:58,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553465413] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:41:58,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:41:58,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:41:58,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032916722] [2025-03-17 14:41:58,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:41:58,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:41:58,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:41:58,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:41:58,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:41:58,663 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:41:58,695 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2025-03-17 14:41:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:41:58,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2025-03-17 14:41:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:41:58,695 INFO L225 Difference]: With dead ends: 12 [2025-03-17 14:41:58,695 INFO L226 Difference]: Without dead ends: 11 [2025-03-17 14:41:58,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:41:58,696 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:41:58,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:41:58,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2025-03-17 14:41:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2025-03-17 14:41:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2025-03-17 14:41:58,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2025-03-17 14:41:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:41:58,700 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2025-03-17 14:41:58,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2025-03-17 14:41:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 14:41:58,701 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:41:58,701 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-17 14:41:58,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:41:58,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:41:58,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:41:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1728093596, now seen corresponding path program 1 times [2025-03-17 14:41:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:41:58,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100418166] [2025-03-17 14:41:58,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:41:58,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:41:58,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:41:58,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:41:58,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:41:58,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:58,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:41:58,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100418166] [2025-03-17 14:41:58,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100418166] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:41:58,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915452767] [2025-03-17 14:41:58,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:41:58,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:41:58,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:41:58,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:41:58,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:41:58,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:41:58,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:41:58,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:41:58,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:58,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:41:58,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:41:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:58,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:41:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:58,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915452767] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:41:58,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:41:58,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-17 14:41:58,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433091279] [2025-03-17 14:41:58,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:41:58,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:41:58,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:41:58,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:41:58,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:41:58,933 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:58,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:41:58,997 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2025-03-17 14:41:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:41:58,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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) Word has length 8 [2025-03-17 14:41:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:41:58,998 INFO L225 Difference]: With dead ends: 33 [2025-03-17 14:41:58,998 INFO L226 Difference]: Without dead ends: 32 [2025-03-17 14:41:58,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:41:58,999 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:41:58,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 11 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:41:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-03-17 14:41:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-03-17 14:41:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2025-03-17 14:41:59,002 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 8 [2025-03-17 14:41:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:41:59,003 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2025-03-17 14:41:59,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2025-03-17 14:41:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 14:41:59,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:41:59,003 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1] [2025-03-17 14:41:59,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:41:59,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:41:59,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:41:59,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:41:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash 784481259, now seen corresponding path program 2 times [2025-03-17 14:41:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:41:59,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482431165] [2025-03-17 14:41:59,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:41:59,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:41:59,215 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-03-17 14:41:59,224 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 14:41:59,226 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:41:59,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:41:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482431165] [2025-03-17 14:41:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482431165] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:41:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181670240] [2025-03-17 14:41:59,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:41:59,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:41:59,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:41:59,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:41:59,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:41:59,446 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-03-17 14:41:59,454 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 14:41:59,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:41:59,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:41:59,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 14:41:59,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:41:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:59,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:41:59,644 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:41:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181670240] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:41:59,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:41:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-17 14:41:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116341844] [2025-03-17 14:41:59,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:41:59,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 14:41:59,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:41:59,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 14:41:59,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:41:59,646 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:41:59,755 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2025-03-17 14:41:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 14:41:59,755 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 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) Word has length 23 [2025-03-17 14:41:59,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:41:59,756 INFO L225 Difference]: With dead ends: 75 [2025-03-17 14:41:59,756 INFO L226 Difference]: Without dead ends: 74 [2025-03-17 14:41:59,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:41:59,757 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 56 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:41:59,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 22 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:41:59,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-03-17 14:41:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-03-17 14:41:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:59,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2025-03-17 14:41:59,764 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 23 [2025-03-17 14:41:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:41:59,764 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2025-03-17 14:41:59,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:41:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2025-03-17 14:41:59,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 14:41:59,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:41:59,766 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1] [2025-03-17 14:41:59,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 14:41:59,967 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,SelfDestructingSolverStorable3 [2025-03-17 14:41:59,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:41:59,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:41:59,967 INFO L85 PathProgramCache]: Analyzing trace with hash 256065483, now seen corresponding path program 3 times [2025-03-17 14:41:59,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:41:59,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778286721] [2025-03-17 14:41:59,968 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:41:59,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:41:59,975 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 53 statements into 11 equivalence classes. [2025-03-17 14:41:59,993 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 14:41:59,993 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:41:59,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:00,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:42:00,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778286721] [2025-03-17 14:42:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778286721] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:42:00,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140885455] [2025-03-17 14:42:00,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:42:00,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:00,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:42:00,452 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:42:00,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:42:00,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 53 statements into 11 equivalence classes. [2025-03-17 14:42:00,501 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 14:42:00,501 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:42:00,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:00,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:42:00,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:42:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:00,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:42:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140885455] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:42:01,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:42:01,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2025-03-17 14:42:01,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686292925] [2025-03-17 14:42:01,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:42:01,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-17 14:42:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:42:01,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-17 14:42:01,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-17 14:42:01,126 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 46 states, 45 states have (on average 2.3555555555555556) internal successors, (106), 45 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:01,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:42:01,340 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2025-03-17 14:42:01,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-17 14:42:01,341 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.3555555555555556) internal successors, (106), 45 states have internal predecessors, (106), 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) Word has length 53 [2025-03-17 14:42:01,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:42:01,342 INFO L225 Difference]: With dead ends: 159 [2025-03-17 14:42:01,342 INFO L226 Difference]: Without dead ends: 158 [2025-03-17 14:42:01,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-17 14:42:01,343 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 280 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:42:01,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 32 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:42:01,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-03-17 14:42:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-03-17 14:42:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.286624203821656) internal successors, (202), 157 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2025-03-17 14:42:01,359 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 53 [2025-03-17 14:42:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:42:01,359 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2025-03-17 14:42:01,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.3555555555555556) internal successors, (106), 45 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2025-03-17 14:42:01,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 14:42:01,361 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:42:01,361 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1] [2025-03-17 14:42:01,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 14:42:01,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:01,562 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:42:01,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:42:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 651898763, now seen corresponding path program 4 times [2025-03-17 14:42:01,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:42:01,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695222315] [2025-03-17 14:42:01,562 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:42:01,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:42:01,570 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 113 statements into 2 equivalence classes. [2025-03-17 14:42:01,586 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 14:42:01,586 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:42:01,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:02,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:42:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695222315] [2025-03-17 14:42:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695222315] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:42:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101084721] [2025-03-17 14:42:02,691 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:42:02,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:02,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:42:02,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:42:02,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:42:02,727 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 113 statements into 2 equivalence classes. [2025-03-17 14:42:02,756 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 14:42:02,756 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:42:02,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:02,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-17 14:42:02,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:42:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:02,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:42:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:04,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101084721] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:42:04,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:42:04,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 94 [2025-03-17 14:42:04,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243551719] [2025-03-17 14:42:04,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:42:04,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 14:42:04,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:42:04,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 14:42:04,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:42:04,401 INFO L87 Difference]: Start difference. First operand 158 states and 202 transitions. Second operand has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 95 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:04,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:42:04,816 INFO L93 Difference]: Finished difference Result 327 states and 442 transitions. [2025-03-17 14:42:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2025-03-17 14:42:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 95 states have internal predecessors, (230), 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) Word has length 113 [2025-03-17 14:42:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:42:04,818 INFO L225 Difference]: With dead ends: 327 [2025-03-17 14:42:04,819 INFO L226 Difference]: Without dead ends: 326 [2025-03-17 14:42:04,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:42:04,824 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 536 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:42:04,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 66 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:42:04,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-03-17 14:42:04,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2025-03-17 14:42:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.2861538461538462) internal successors, (418), 325 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 418 transitions. [2025-03-17 14:42:04,836 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 418 transitions. Word has length 113 [2025-03-17 14:42:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:42:04,836 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 418 transitions. [2025-03-17 14:42:04,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 95 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 418 transitions. [2025-03-17 14:42:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-03-17 14:42:04,844 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:42:04,844 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1] [2025-03-17 14:42:04,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 14:42:05,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:05,049 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:42:05,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:42:05,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1739239179, now seen corresponding path program 5 times [2025-03-17 14:42:05,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:42:05,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848515680] [2025-03-17 14:42:05,050 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:42:05,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:42:05,058 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 233 statements into 47 equivalence classes. [2025-03-17 14:42:05,186 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 233 of 233 statements. [2025-03-17 14:42:05,187 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:42:05,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:08,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:42:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848515680] [2025-03-17 14:42:08,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848515680] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:42:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946587403] [2025-03-17 14:42:08,488 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:42:08,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:08,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:42:08,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:42:08,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:42:08,528 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 233 statements into 47 equivalence classes. [2025-03-17 14:42:08,646 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 233 of 233 statements. [2025-03-17 14:42:08,646 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:42:08,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:08,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-17 14:42:08,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:42:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:08,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:42:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:13,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946587403] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:42:13,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:42:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94, 94] total 188 [2025-03-17 14:42:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792309626] [2025-03-17 14:42:13,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:42:13,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2025-03-17 14:42:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:42:13,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2025-03-17 14:42:13,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-17 14:42:13,766 INFO L87 Difference]: Start difference. First operand 326 states and 418 transitions. Second operand has 190 states, 189 states have (on average 2.4656084656084656) internal successors, (466), 189 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:42:15,493 INFO L93 Difference]: Finished difference Result 1248 states and 1652 transitions. [2025-03-17 14:42:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-03-17 14:42:15,494 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.4656084656084656) internal successors, (466), 189 states have internal predecessors, (466), 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) Word has length 233 [2025-03-17 14:42:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:42:15,498 INFO L225 Difference]: With dead ends: 1248 [2025-03-17 14:42:15,498 INFO L226 Difference]: Without dead ends: 1247 [2025-03-17 14:42:15,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-17 14:42:15,502 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 1243 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 14:42:15,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 108 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 14:42:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2025-03-17 14:42:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 660. [2025-03-17 14:42:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.2852807283763277) internal successors, (847), 659 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 847 transitions. [2025-03-17 14:42:15,544 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 847 transitions. Word has length 233 [2025-03-17 14:42:15,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:42:15,545 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 847 transitions. [2025-03-17 14:42:15,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.4656084656084656) internal successors, (466), 189 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:42:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 847 transitions. [2025-03-17 14:42:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2025-03-17 14:42:15,553 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:42:15,554 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1] [2025-03-17 14:42:15,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 14:42:15,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:15,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:42:15,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:42:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1174941195, now seen corresponding path program 6 times [2025-03-17 14:42:15,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:42:15,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030648442] [2025-03-17 14:42:15,759 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:42:15,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:42:15,773 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 473 statements into 95 equivalence classes. [2025-03-17 14:42:15,974 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 473 of 473 statements. [2025-03-17 14:42:15,974 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:42:15,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:28,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:42:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030648442] [2025-03-17 14:42:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030648442] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:42:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183603637] [2025-03-17 14:42:28,395 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:42:28,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:42:28,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:42:28,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:42:28,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:42:28,449 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 473 statements into 95 equivalence classes. [2025-03-17 14:42:28,781 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 473 of 473 statements. [2025-03-17 14:42:28,781 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:42:28,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:42:28,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 191 conjuncts are in the unsatisfiable core [2025-03-17 14:42:28,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:42:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:29,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:42:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:42:48,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183603637] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:42:48,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:42:48,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 190, 190] total 380 [2025-03-17 14:42:48,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688888859] [2025-03-17 14:42:48,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:42:48,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2025-03-17 14:42:48,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:42:48,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2025-03-17 14:42:48,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2025-03-17 14:42:48,429 INFO L87 Difference]: Start difference. First operand 660 states and 847 transitions. Second operand has 382 states, 381 states have (on average 2.4829396325459316) internal successors, (946), 381 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:43:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:43:04,489 INFO L93 Difference]: Finished difference Result 1333 states and 1807 transitions. [2025-03-17 14:43:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2025-03-17 14:43:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4829396325459316) internal successors, (946), 381 states have internal predecessors, (946), 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) Word has length 473 [2025-03-17 14:43:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:43:04,494 INFO L225 Difference]: With dead ends: 1333 [2025-03-17 14:43:04,494 INFO L226 Difference]: Without dead ends: 1332 [2025-03-17 14:43:04,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44557 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2025-03-17 14:43:04,498 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 3412 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:43:04,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 207 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-17 14:43:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2025-03-17 14:43:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2025-03-17 14:43:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 1.2854996243425996) internal successors, (1711), 1331 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:43:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1711 transitions. [2025-03-17 14:43:04,520 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1711 transitions. Word has length 473 [2025-03-17 14:43:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:43:04,520 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1711 transitions. [2025-03-17 14:43:04,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4829396325459316) internal successors, (946), 381 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:43:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1711 transitions. [2025-03-17 14:43:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2025-03-17 14:43:04,534 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:43:04,535 INFO L218 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1] [2025-03-17 14:43:04,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:43:04,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:43:04,736 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 14:43:04,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:43:04,737 INFO L85 PathProgramCache]: Analyzing trace with hash -407032821, now seen corresponding path program 7 times [2025-03-17 14:43:04,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:43:04,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243821254] [2025-03-17 14:43:04,737 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:43:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:43:04,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 953 statements into 1 equivalence classes. [2025-03-17 14:43:04,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 953 of 953 statements. [2025-03-17 14:43:04,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:43:04,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat