./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.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 ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:30:58,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:30:58,997 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 10:30:59,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:30:59,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:30:59,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:30:59,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:30:59,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:30:59,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:30:59,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:30:59,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:30:59,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:30:59,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:30:59,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:30:59,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:30:59,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:30:59,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:30:59,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:30:59,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:30:59,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:30:59,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:30:59,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:30:59,027 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 -> ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 [2025-03-04 10:30:59,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:30:59,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:30:59,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:30:59,244 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:30:59,244 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:30:59,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2025-03-04 10:31:00,330 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50f9fe7c/a1e7169378e84ec39549922e5646e5c0/FLAG41905bb2e [2025-03-04 10:31:00,509 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:31:00,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2025-03-04 10:31:00,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50f9fe7c/a1e7169378e84ec39549922e5646e5c0/FLAG41905bb2e [2025-03-04 10:31:00,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50f9fe7c/a1e7169378e84ec39549922e5646e5c0 [2025-03-04 10:31:00,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:31:00,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:31:00,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:31:00,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:31:00,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:31:00,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:31:00" (1/1) ... [2025-03-04 10:31:00,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49603888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:00, skipping insertion in model container [2025-03-04 10:31:00,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:31:00" (1/1) ... [2025-03-04 10:31:00,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:31:00,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:31:01,004 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:31:01,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:31:01,023 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:31:01,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01 WrapperNode [2025-03-04 10:31:01,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:31:01,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:31:01,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:31:01,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:31:01,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,042 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2025-03-04 10:31:01,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:31:01,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:31:01,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:31:01,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:31:01,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,055 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 10:31:01,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,058 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:31:01,061 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:31:01,061 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:31:01,061 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:31:01,062 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (1/1) ... [2025-03-04 10:31:01,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:31:01,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:01,087 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) [2025-03-04 10:31:01,090 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 [2025-03-04 10:31:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:31:01,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:31:01,155 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:31:01,156 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:31:01,260 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-04 10:31:01,260 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:31:01,268 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:31:01,269 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:31:01,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:31:01 BoogieIcfgContainer [2025-03-04 10:31:01,270 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:31:01,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:31:01,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:31:01,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:31:01,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:31:00" (1/3) ... [2025-03-04 10:31:01,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d7678f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:31:01, skipping insertion in model container [2025-03-04 10:31:01,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:31:01" (2/3) ... [2025-03-04 10:31:01,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d7678f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:31:01, skipping insertion in model container [2025-03-04 10:31:01,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:31:01" (3/3) ... [2025-03-04 10:31:01,277 INFO L128 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2025-03-04 10:31:01,287 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:31:01,289 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c that has 1 procedures, 31 locations, 1 initial locations, 1 loop locations, and 10 error locations. [2025-03-04 10:31:01,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:31:01,338 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;@4ca88bdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:31:01,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-04 10:31:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.8) internal successors, (36), 30 states have internal predecessors, (36), 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) [2025-03-04 10:31:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 10:31:01,345 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,346 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 10:31:01,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:01,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:01,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1999935, now seen corresponding path program 1 times [2025-03-04 10:31:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:01,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160285861] [2025-03-04 10:31:01,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:01,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 10:31:01,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 10:31:01,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:01,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160285861] [2025-03-04 10:31:01,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160285861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:01,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:01,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437709247] [2025-03-04 10:31:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:01,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:01,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:01,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,483 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.8) internal successors, (36), 30 states have internal predecessors, (36), 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 3 states, 2 states have (on average 2.0) 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) [2025-03-04 10:31:01,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:01,504 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2025-03-04 10:31:01,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:01,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 [2025-03-04 10:31:01,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:01,510 INFO L225 Difference]: With dead ends: 31 [2025-03-04 10:31:01,510 INFO L226 Difference]: Without dead ends: 27 [2025-03-04 10:31:01,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,513 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:01,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-03-04 10:31:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-03-04 10:31:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 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) [2025-03-04 10:31:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2025-03-04 10:31:01,535 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 4 [2025-03-04 10:31:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:01,535 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2025-03-04 10:31:01,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2025-03-04 10:31:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2025-03-04 10:31:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-04 10:31:01,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,537 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-04 10:31:01,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:31:01,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:01,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 61997984, now seen corresponding path program 1 times [2025-03-04 10:31:01,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:01,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128782882] [2025-03-04 10:31:01,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:01,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 10:31:01,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 10:31:01,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:01,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128782882] [2025-03-04 10:31:01,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128782882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:01,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:01,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508161786] [2025-03-04 10:31:01,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:01,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:01,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:01,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:01,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,569 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-04 10:31:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:01,579 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2025-03-04 10:31:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-03-04 10:31:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:01,580 INFO L225 Difference]: With dead ends: 31 [2025-03-04 10:31:01,580 INFO L226 Difference]: Without dead ends: 30 [2025-03-04 10:31:01,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,581 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:01,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-04 10:31:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-04 10:31:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 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) [2025-03-04 10:31:01,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2025-03-04 10:31:01,584 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2025-03-04 10:31:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:01,584 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2025-03-04 10:31:01,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-04 10:31:01,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2025-03-04 10:31:01,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 10:31:01,585 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,585 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:01,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:31:01,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:01,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash 146001001, now seen corresponding path program 1 times [2025-03-04 10:31:01,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:01,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957178771] [2025-03-04 10:31:01,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:01,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 10:31:01,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 10:31:01,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:01,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957178771] [2025-03-04 10:31:01,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957178771] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:01,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:01,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:01,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056252450] [2025-03-04 10:31:01,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:01,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:01,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:01,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:01,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,617 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-04 10:31:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:01,636 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2025-03-04 10:31:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:01,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 [2025-03-04 10:31:01,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:01,637 INFO L225 Difference]: With dead ends: 53 [2025-03-04 10:31:01,637 INFO L226 Difference]: Without dead ends: 51 [2025-03-04 10:31:01,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,638 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:01,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-04 10:31:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2025-03-04 10:31:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 44 states have internal predecessors, (61), 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) [2025-03-04 10:31:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2025-03-04 10:31:01,642 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 8 [2025-03-04 10:31:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:01,642 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2025-03-04 10:31:01,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-04 10:31:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2025-03-04 10:31:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 10:31:01,643 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:01,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:31:01,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 231063708, now seen corresponding path program 1 times [2025-03-04 10:31:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:01,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620590477] [2025-03-04 10:31:01,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:01,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 10:31:01,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 10:31:01,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:01,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620590477] [2025-03-04 10:31:01,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620590477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:01,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:01,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:01,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904796717] [2025-03-04 10:31:01,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:01,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:01,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:01,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:01,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,669 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-03-04 10:31:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:01,697 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2025-03-04 10:31:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:01,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2025-03-04 10:31:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:01,699 INFO L225 Difference]: With dead ends: 83 [2025-03-04 10:31:01,699 INFO L226 Difference]: Without dead ends: 81 [2025-03-04 10:31:01,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:01,700 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:01,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-04 10:31:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2025-03-04 10:31:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 75 states have internal predecessors, (114), 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) [2025-03-04 10:31:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 114 transitions. [2025-03-04 10:31:01,711 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 114 transitions. Word has length 9 [2025-03-04 10:31:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:01,711 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 114 transitions. [2025-03-04 10:31:01,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-03-04 10:31:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2025-03-04 10:31:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 10:31:01,712 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,712 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:31:01,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:31:01,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:01,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:01,714 INFO L85 PathProgramCache]: Analyzing trace with hash 231102019, now seen corresponding path program 1 times [2025-03-04 10:31:01,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:01,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466794066] [2025-03-04 10:31:01,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:01,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 10:31:01,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 10:31:01,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466794066] [2025-03-04 10:31:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466794066] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:01,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426588296] [2025-03-04 10:31:01,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:01,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:01,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:01,754 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) [2025-03-04 10:31:01,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 10:31:01,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 10:31:01,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 10:31:01,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:01,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:01,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:01,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:01,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426588296] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:01,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:01,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:01,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305806039] [2025-03-04 10:31:01,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:01,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:01,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:01,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:01,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:01,864 INFO L87 Difference]: Start difference. First operand 76 states and 114 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2025-03-04 10:31:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:01,901 INFO L93 Difference]: Finished difference Result 231 states and 342 transitions. [2025-03-04 10:31:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:31:01,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 9 [2025-03-04 10:31:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:01,902 INFO L225 Difference]: With dead ends: 231 [2025-03-04 10:31:01,902 INFO L226 Difference]: Without dead ends: 230 [2025-03-04 10:31:01,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:01,903 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 118 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:01,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 130 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:01,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2025-03-04 10:31:01,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 210. [2025-03-04 10:31:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 201 states have (on average 1.6467661691542288) internal successors, (331), 209 states have internal predecessors, (331), 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) [2025-03-04 10:31:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2025-03-04 10:31:01,921 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 9 [2025-03-04 10:31:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:01,921 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2025-03-04 10:31:01,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2025-03-04 10:31:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2025-03-04 10:31:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 10:31:01,922 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:01,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:01,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:02,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:02,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:02,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1426911053, now seen corresponding path program 1 times [2025-03-04 10:31:02,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:02,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271871043] [2025-03-04 10:31:02,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:02,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 10:31:02,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 10:31:02,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:02,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271871043] [2025-03-04 10:31:02,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271871043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:02,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:02,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526856622] [2025-03-04 10:31:02,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:02,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:02,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:02,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:02,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:02,160 INFO L87 Difference]: Start difference. First operand 210 states and 331 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-04 10:31:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:02,182 INFO L93 Difference]: Finished difference Result 354 states and 555 transitions. [2025-03-04 10:31:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:02,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2025-03-04 10:31:02,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:02,184 INFO L225 Difference]: With dead ends: 354 [2025-03-04 10:31:02,184 INFO L226 Difference]: Without dead ends: 352 [2025-03-04 10:31:02,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:02,185 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:02,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-03-04 10:31:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 339. [2025-03-04 10:31:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 330 states have (on average 1.5606060606060606) internal successors, (515), 338 states have internal predecessors, (515), 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) [2025-03-04 10:31:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 515 transitions. [2025-03-04 10:31:02,218 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 515 transitions. Word has length 10 [2025-03-04 10:31:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:02,218 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 515 transitions. [2025-03-04 10:31:02,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-04 10:31:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 515 transitions. [2025-03-04 10:31:02,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 10:31:02,219 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:02,219 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:02,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 10:31:02,219 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:02,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:02,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1284569702, now seen corresponding path program 1 times [2025-03-04 10:31:02,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728941823] [2025-03-04 10:31:02,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:02,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 10:31:02,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 10:31:02,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728941823] [2025-03-04 10:31:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728941823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:31:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:31:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:31:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164286150] [2025-03-04 10:31:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:31:02,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:31:02,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:02,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:31:02,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:02,243 INFO L87 Difference]: Start difference. First operand 339 states and 515 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-03-04 10:31:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:02,266 INFO L93 Difference]: Finished difference Result 565 states and 856 transitions. [2025-03-04 10:31:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:31:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2025-03-04 10:31:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:02,269 INFO L225 Difference]: With dead ends: 565 [2025-03-04 10:31:02,269 INFO L226 Difference]: Without dead ends: 563 [2025-03-04 10:31:02,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:31:02,270 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:02,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2025-03-04 10:31:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 558. [2025-03-04 10:31:02,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 549 states have (on average 1.5009107468123861) internal successors, (824), 557 states have internal predecessors, (824), 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) [2025-03-04 10:31:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 824 transitions. [2025-03-04 10:31:02,296 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 824 transitions. Word has length 11 [2025-03-04 10:31:02,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:02,296 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 824 transitions. [2025-03-04 10:31:02,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-03-04 10:31:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 824 transitions. [2025-03-04 10:31:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 10:31:02,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:02,297 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:31:02,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 10:31:02,297 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:02,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1445881919, now seen corresponding path program 1 times [2025-03-04 10:31:02,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:02,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164527828] [2025-03-04 10:31:02,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:02,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 10:31:02,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 10:31:02,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164527828] [2025-03-04 10:31:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164527828] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120337272] [2025-03-04 10:31:02,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:02,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:02,362 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) [2025-03-04 10:31:02,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 10:31:02,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 10:31:02,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 10:31:02,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:02,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120337272] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:02,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:02,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:02,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75813975] [2025-03-04 10:31:02,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:02,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:02,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:02,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:02,428 INFO L87 Difference]: Start difference. First operand 558 states and 824 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-04 10:31:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:02,475 INFO L93 Difference]: Finished difference Result 1058 states and 1611 transitions. [2025-03-04 10:31:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:31:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 16 [2025-03-04 10:31:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:02,479 INFO L225 Difference]: With dead ends: 1058 [2025-03-04 10:31:02,479 INFO L226 Difference]: Without dead ends: 1056 [2025-03-04 10:31:02,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:02,480 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 144 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:02,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 115 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:02,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2025-03-04 10:31:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 916. [2025-03-04 10:31:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 907 states have (on average 1.5203969128996693) internal successors, (1379), 915 states have internal predecessors, (1379), 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) [2025-03-04 10:31:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1379 transitions. [2025-03-04 10:31:02,504 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1379 transitions. Word has length 16 [2025-03-04 10:31:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:02,504 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1379 transitions. [2025-03-04 10:31:02,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-04 10:31:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1379 transitions. [2025-03-04 10:31:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 10:31:02,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:02,505 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:02,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 10:31:02,705 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,SelfDestructingSolverStorable7 [2025-03-04 10:31:02,706 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:02,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash 508998272, now seen corresponding path program 1 times [2025-03-04 10:31:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:02,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29627205] [2025-03-04 10:31:02,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:02,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 10:31:02,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 10:31:02,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29627205] [2025-03-04 10:31:02,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29627205] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408180105] [2025-03-04 10:31:02,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:02,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:02,749 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) [2025-03-04 10:31:02,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 10:31:02,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 10:31:02,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 10:31:02,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:02,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:02,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:02,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408180105] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:02,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:02,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:02,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736421933] [2025-03-04 10:31:02,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:02,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:02,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:02,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:02,829 INFO L87 Difference]: Start difference. First operand 916 states and 1379 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-04 10:31:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:02,895 INFO L93 Difference]: Finished difference Result 1571 states and 2432 transitions. [2025-03-04 10:31:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:31:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 16 [2025-03-04 10:31:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:02,900 INFO L225 Difference]: With dead ends: 1571 [2025-03-04 10:31:02,900 INFO L226 Difference]: Without dead ends: 1569 [2025-03-04 10:31:02,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:02,901 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:02,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 92 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2025-03-04 10:31:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1077. [2025-03-04 10:31:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1069 states have (on average 1.5060804490177737) internal successors, (1610), 1076 states have internal predecessors, (1610), 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) [2025-03-04 10:31:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1610 transitions. [2025-03-04 10:31:02,925 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1610 transitions. Word has length 16 [2025-03-04 10:31:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:02,926 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1610 transitions. [2025-03-04 10:31:02,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-04 10:31:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1610 transitions. [2025-03-04 10:31:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 10:31:02,927 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:02,927 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:31:02,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 10:31:03,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:03,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:03,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:03,128 INFO L85 PathProgramCache]: Analyzing trace with hash 121839681, now seen corresponding path program 1 times [2025-03-04 10:31:03,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976958049] [2025-03-04 10:31:03,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:03,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:31:03,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:31:03,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:03,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976958049] [2025-03-04 10:31:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976958049] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:03,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660985948] [2025-03-04 10:31:03,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:03,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:03,162 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) [2025-03-04 10:31:03,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 10:31:03,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:31:03,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:31:03,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:03,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:03,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:03,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660985948] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:03,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:03,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:03,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328683710] [2025-03-04 10:31:03,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:03,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:03,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:03,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:03,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:03,241 INFO L87 Difference]: Start difference. First operand 1077 states and 1610 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-04 10:31:03,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:03,297 INFO L93 Difference]: Finished difference Result 2449 states and 3822 transitions. [2025-03-04 10:31:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:31:03,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20 [2025-03-04 10:31:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:03,305 INFO L225 Difference]: With dead ends: 2449 [2025-03-04 10:31:03,305 INFO L226 Difference]: Without dead ends: 2447 [2025-03-04 10:31:03,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:03,306 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 75 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:03,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 112 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2025-03-04 10:31:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2128. [2025-03-04 10:31:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2120 states have (on average 1.5179245283018867) internal successors, (3218), 2127 states have internal predecessors, (3218), 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) [2025-03-04 10:31:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3218 transitions. [2025-03-04 10:31:03,364 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3218 transitions. Word has length 20 [2025-03-04 10:31:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:03,364 INFO L471 AbstractCegarLoop]: Abstraction has 2128 states and 3218 transitions. [2025-03-04 10:31:03,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-04 10:31:03,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3218 transitions. [2025-03-04 10:31:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 10:31:03,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:03,365 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:31:03,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:03,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:03,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:03,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash 373382344, now seen corresponding path program 1 times [2025-03-04 10:31:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:03,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757274959] [2025-03-04 10:31:03,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:03,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:31:03,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:31:03,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:03,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:03,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757274959] [2025-03-04 10:31:03,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757274959] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:03,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510167257] [2025-03-04 10:31:03,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:03,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:03,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:03,610 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) [2025-03-04 10:31:03,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 10:31:03,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:31:03,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:31:03,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:03,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:03,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:03,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:03,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510167257] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:03,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:03,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:03,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035084331] [2025-03-04 10:31:03,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:03,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:03,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:03,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:03,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:03,687 INFO L87 Difference]: Start difference. First operand 2128 states and 3218 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-04 10:31:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:03,752 INFO L93 Difference]: Finished difference Result 4025 states and 6272 transitions. [2025-03-04 10:31:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:31:03,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20 [2025-03-04 10:31:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:03,763 INFO L225 Difference]: With dead ends: 4025 [2025-03-04 10:31:03,763 INFO L226 Difference]: Without dead ends: 4023 [2025-03-04 10:31:03,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:03,765 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 112 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:03,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2025-03-04 10:31:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 2622. [2025-03-04 10:31:03,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2615 states have (on average 1.4944550669216061) internal successors, (3908), 2621 states have internal predecessors, (3908), 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) [2025-03-04 10:31:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3908 transitions. [2025-03-04 10:31:03,837 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3908 transitions. Word has length 20 [2025-03-04 10:31:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:03,838 INFO L471 AbstractCegarLoop]: Abstraction has 2622 states and 3908 transitions. [2025-03-04 10:31:03,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-04 10:31:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3908 transitions. [2025-03-04 10:31:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 10:31:03,838 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:03,838 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1] [2025-03-04 10:31:03,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 10:31:04,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-04 10:31:04,043 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:04,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash -450489044, now seen corresponding path program 2 times [2025-03-04 10:31:04,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580066103] [2025-03-04 10:31:04,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:04,048 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-03-04 10:31:04,049 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 21 statements. [2025-03-04 10:31:04,049 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:31:04,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 10:31:04,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:04,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580066103] [2025-03-04 10:31:04,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580066103] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:04,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042311451] [2025-03-04 10:31:04,060 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:04,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:04,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:04,062 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) [2025-03-04 10:31:04,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 10:31:04,080 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-03-04 10:31:04,081 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 21 statements. [2025-03-04 10:31:04,081 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:31:04,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:04,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:31:04,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 10:31:04,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 10:31:04,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042311451] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:04,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:04,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 10:31:04,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271866258] [2025-03-04 10:31:04,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:04,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:31:04,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:04,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:31:04,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:31:04,127 INFO L87 Difference]: Start difference. First operand 2622 states and 3908 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2025-03-04 10:31:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:04,167 INFO L93 Difference]: Finished difference Result 2622 states and 3908 transitions. [2025-03-04 10:31:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:31:04,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 21 [2025-03-04 10:31:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:04,174 INFO L225 Difference]: With dead ends: 2622 [2025-03-04 10:31:04,174 INFO L226 Difference]: Without dead ends: 2621 [2025-03-04 10:31:04,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:31:04,175 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:04,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:04,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2025-03-04 10:31:04,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2270. [2025-03-04 10:31:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2264 states have (on average 1.4536219081272084) internal successors, (3291), 2269 states have internal predecessors, (3291), 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) [2025-03-04 10:31:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 3291 transitions. [2025-03-04 10:31:04,231 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 3291 transitions. Word has length 21 [2025-03-04 10:31:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:04,232 INFO L471 AbstractCegarLoop]: Abstraction has 2270 states and 3291 transitions. [2025-03-04 10:31:04,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2025-03-04 10:31:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 3291 transitions. [2025-03-04 10:31:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 10:31:04,232 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:04,232 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2025-03-04 10:31:04,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:04,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:04,434 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:04,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:04,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1151817949, now seen corresponding path program 1 times [2025-03-04 10:31:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089797974] [2025-03-04 10:31:04,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:04,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 10:31:04,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 10:31:04,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:04,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:04,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089797974] [2025-03-04 10:31:04,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089797974] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:04,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702259154] [2025-03-04 10:31:04,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:04,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:04,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:04,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:04,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 10:31:04,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 10:31:04,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 10:31:04,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:04,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:04,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:31:04,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:04,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:04,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702259154] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:04,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:04,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-04 10:31:04,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022422870] [2025-03-04 10:31:04,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:04,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:31:04,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:04,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:31:04,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:31:04,588 INFO L87 Difference]: Start difference. First operand 2270 states and 3291 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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) [2025-03-04 10:31:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:04,739 INFO L93 Difference]: Finished difference Result 6565 states and 9600 transitions. [2025-03-04 10:31:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:31:04,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 25 [2025-03-04 10:31:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:04,756 INFO L225 Difference]: With dead ends: 6565 [2025-03-04 10:31:04,756 INFO L226 Difference]: Without dead ends: 6564 [2025-03-04 10:31:04,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:31:04,760 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 137 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:04,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 146 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2025-03-04 10:31:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5370. [2025-03-04 10:31:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5364 states have (on average 1.4500372856077555) internal successors, (7778), 5369 states have internal predecessors, (7778), 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) [2025-03-04 10:31:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 7778 transitions. [2025-03-04 10:31:04,932 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 7778 transitions. Word has length 25 [2025-03-04 10:31:04,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:04,932 INFO L471 AbstractCegarLoop]: Abstraction has 5370 states and 7778 transitions. [2025-03-04 10:31:04,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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) [2025-03-04 10:31:04,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 7778 transitions. [2025-03-04 10:31:04,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 10:31:04,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:04,933 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2025-03-04 10:31:04,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:05,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:05,134 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:05,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash 679937393, now seen corresponding path program 1 times [2025-03-04 10:31:05,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:05,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507409314] [2025-03-04 10:31:05,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:05,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:05,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:31:05,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:31:05,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:05,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:05,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:05,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507409314] [2025-03-04 10:31:05,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507409314] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:05,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442645709] [2025-03-04 10:31:05,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:31:05,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:05,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:05,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:05,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 10:31:05,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:31:05,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:31:05,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:31:05,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:05,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:31:05,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:05,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:05,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442645709] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:05,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:05,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-04 10:31:05,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217885642] [2025-03-04 10:31:05,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:05,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:31:05,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:05,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:31:05,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:31:05,295 INFO L87 Difference]: Start difference. First operand 5370 states and 7778 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-03-04 10:31:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:05,531 INFO L93 Difference]: Finished difference Result 15529 states and 22704 transitions. [2025-03-04 10:31:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:31:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 31 [2025-03-04 10:31:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:05,564 INFO L225 Difference]: With dead ends: 15529 [2025-03-04 10:31:05,565 INFO L226 Difference]: Without dead ends: 15528 [2025-03-04 10:31:05,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:31:05,572 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 93 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:05,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 148 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:31:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15528 states. [2025-03-04 10:31:05,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15528 to 12718. [2025-03-04 10:31:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12718 states, 12712 states have (on average 1.4462712397734425) internal successors, (18385), 12717 states have internal predecessors, (18385), 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) [2025-03-04 10:31:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 18385 transitions. [2025-03-04 10:31:05,872 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 18385 transitions. Word has length 31 [2025-03-04 10:31:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:05,872 INFO L471 AbstractCegarLoop]: Abstraction has 12718 states and 18385 transitions. [2025-03-04 10:31:05,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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) [2025-03-04 10:31:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 18385 transitions. [2025-03-04 10:31:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 10:31:05,874 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:05,874 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2025-03-04 10:31:05,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:06,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-04 10:31:06,079 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:06,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1253846692, now seen corresponding path program 2 times [2025-03-04 10:31:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411734447] [2025-03-04 10:31:06,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:06,085 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-04 10:31:06,088 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 10:31:06,088 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:06,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411734447] [2025-03-04 10:31:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411734447] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349402035] [2025-03-04 10:31:06,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:06,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:06,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:06,139 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:06,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 10:31:06,157 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-04 10:31:06,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 10:31:06,166 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:06,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:06,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:31:06,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:06,205 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:06,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349402035] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:06,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:06,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-03-04 10:31:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038101504] [2025-03-04 10:31:06,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:06,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:31:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:06,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:31:06,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:31:06,271 INFO L87 Difference]: Start difference. First operand 12718 states and 18385 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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) [2025-03-04 10:31:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:06,807 INFO L93 Difference]: Finished difference Result 43375 states and 64064 transitions. [2025-03-04 10:31:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:31:06,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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 37 [2025-03-04 10:31:06,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:06,907 INFO L225 Difference]: With dead ends: 43375 [2025-03-04 10:31:06,908 INFO L226 Difference]: Without dead ends: 43373 [2025-03-04 10:31:06,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:31:06,922 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 288 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:06,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 228 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:31:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43373 states. [2025-03-04 10:31:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43373 to 27314. [2025-03-04 10:31:07,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27314 states, 27308 states have (on average 1.4249670426248717) internal successors, (38913), 27313 states have internal predecessors, (38913), 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) [2025-03-04 10:31:07,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27314 states to 27314 states and 38913 transitions. [2025-03-04 10:31:07,637 INFO L78 Accepts]: Start accepts. Automaton has 27314 states and 38913 transitions. Word has length 37 [2025-03-04 10:31:07,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:07,637 INFO L471 AbstractCegarLoop]: Abstraction has 27314 states and 38913 transitions. [2025-03-04 10:31:07,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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) [2025-03-04 10:31:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27314 states and 38913 transitions. [2025-03-04 10:31:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-04 10:31:07,643 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:07,643 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2025-03-04 10:31:07,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:07,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-04 10:31:07,847 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:07,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:07,847 INFO L85 PathProgramCache]: Analyzing trace with hash -855382694, now seen corresponding path program 2 times [2025-03-04 10:31:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318995487] [2025-03-04 10:31:07,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:07,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:07,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-04 10:31:07,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 10:31:07,855 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:07,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:07,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318995487] [2025-03-04 10:31:07,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318995487] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787217480] [2025-03-04 10:31:07,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:07,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:07,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:07,916 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:07,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 10:31:07,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-04 10:31:07,942 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 10:31:07,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:07,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:07,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:31:07,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:07,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:08,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787217480] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:08,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:08,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-03-04 10:31:08,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133506301] [2025-03-04 10:31:08,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:08,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:31:08,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:08,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:31:08,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:31:08,066 INFO L87 Difference]: Start difference. First operand 27314 states and 38913 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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) [2025-03-04 10:31:09,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:09,159 INFO L93 Difference]: Finished difference Result 93041 states and 135518 transitions. [2025-03-04 10:31:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:31:09,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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 47 [2025-03-04 10:31:09,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:09,292 INFO L225 Difference]: With dead ends: 93041 [2025-03-04 10:31:09,292 INFO L226 Difference]: Without dead ends: 93039 [2025-03-04 10:31:09,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:31:09,315 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 406 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:09,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 226 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:31:09,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93039 states. [2025-03-04 10:31:10,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93039 to 58638. [2025-03-04 10:31:10,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58638 states, 58632 states have (on average 1.404642516032201) internal successors, (82357), 58637 states have internal predecessors, (82357), 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) [2025-03-04 10:31:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58638 states to 58638 states and 82357 transitions. [2025-03-04 10:31:10,968 INFO L78 Accepts]: Start accepts. Automaton has 58638 states and 82357 transitions. Word has length 47 [2025-03-04 10:31:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:10,969 INFO L471 AbstractCegarLoop]: Abstraction has 58638 states and 82357 transitions. [2025-03-04 10:31:10,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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) [2025-03-04 10:31:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 58638 states and 82357 transitions. [2025-03-04 10:31:10,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-04 10:31:10,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:10,973 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1] [2025-03-04 10:31:10,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 10:31:11,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-04 10:31:11,173 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:11,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash 388512839, now seen corresponding path program 2 times [2025-03-04 10:31:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:11,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616949639] [2025-03-04 10:31:11,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:11,177 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 57 statements into 2 equivalence classes. [2025-03-04 10:31:11,185 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-03-04 10:31:11,185 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:11,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616949639] [2025-03-04 10:31:11,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616949639] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016601113] [2025-03-04 10:31:11,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:11,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:11,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:11,295 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:11,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 10:31:11,314 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 57 statements into 2 equivalence classes. [2025-03-04 10:31:11,330 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-03-04 10:31:11,331 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:11,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:11,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 10:31:11,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:11,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016601113] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:11,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:11,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-04 10:31:11,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79371765] [2025-03-04 10:31:11,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:11,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 10:31:11,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:11,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 10:31:11,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:31:11,528 INFO L87 Difference]: Start difference. First operand 58638 states and 82357 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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) [2025-03-04 10:31:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:13,960 INFO L93 Difference]: Finished difference Result 206448 states and 292609 transitions. [2025-03-04 10:31:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 10:31:13,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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 57 [2025-03-04 10:31:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:14,288 INFO L225 Difference]: With dead ends: 206448 [2025-03-04 10:31:14,289 INFO L226 Difference]: Without dead ends: 206447 [2025-03-04 10:31:14,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:31:14,332 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 497 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:14,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 305 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:31:14,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206447 states. [2025-03-04 10:31:17,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206447 to 114948. [2025-03-04 10:31:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114948 states, 114942 states have (on average 1.3955473195176697) internal successors, (160407), 114947 states have internal predecessors, (160407), 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) [2025-03-04 10:31:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114948 states to 114948 states and 160407 transitions. [2025-03-04 10:31:17,948 INFO L78 Accepts]: Start accepts. Automaton has 114948 states and 160407 transitions. Word has length 57 [2025-03-04 10:31:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:31:17,948 INFO L471 AbstractCegarLoop]: Abstraction has 114948 states and 160407 transitions. [2025-03-04 10:31:17,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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) [2025-03-04 10:31:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 114948 states and 160407 transitions. [2025-03-04 10:31:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 10:31:17,954 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:31:17,954 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1] [2025-03-04 10:31:17,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-04 10:31:18,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-04 10:31:18,155 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-04 10:31:18,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:31:18,155 INFO L85 PathProgramCache]: Analyzing trace with hash -96114915, now seen corresponding path program 2 times [2025-03-04 10:31:18,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:31:18,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208846097] [2025-03-04 10:31:18,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:31:18,159 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-04 10:31:18,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 10:31:18,166 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:18,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:18,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:31:18,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208846097] [2025-03-04 10:31:18,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208846097] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:31:18,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392849152] [2025-03-04 10:31:18,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:31:18,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:31:18,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:31:18,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:31:18,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 10:31:18,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-04 10:31:18,292 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 10:31:18,292 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:31:18,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:31:18,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 10:31:18,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:31:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:18,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:31:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:31:18,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392849152] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:31:18,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:31:18,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-04 10:31:18,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12006037] [2025-03-04 10:31:18,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:31:18,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 10:31:18,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:31:18,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 10:31:18,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:31:18,489 INFO L87 Difference]: Start difference. First operand 114948 states and 160407 transitions. Second operand has 16 states, 15 states have (on average 9.4) internal successors, (141), 16 states have internal predecessors, (141), 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) [2025-03-04 10:31:24,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:31:24,751 INFO L93 Difference]: Finished difference Result 404448 states and 569641 transitions. [2025-03-04 10:31:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 10:31:24,751 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.4) internal successors, (141), 16 states have internal predecessors, (141), 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 71 [2025-03-04 10:31:24,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:31:25,373 INFO L225 Difference]: With dead ends: 404448 [2025-03-04 10:31:25,373 INFO L226 Difference]: Without dead ends: 404447 [2025-03-04 10:31:25,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:31:25,450 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 327 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:31:25,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 309 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:31:25,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404447 states.