./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/nla-digbench-scaling/geo3-ll2_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:09:16,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:09:16,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:09:16,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:09:16,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:09:16,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:09:16,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:09:16,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:09:16,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:09:16,374 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:09:16,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:09:16,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:09:16,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:09:16,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:09:16,374 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:09:16,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:09:16,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:09:16,375 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:09:16,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:09:16,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:09:16,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:09:16,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:09:16,377 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 [2025-03-04 11:09:16,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:09:16,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:09:16,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:09:16,603 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:09:16,604 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:09:16,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c [2025-03-04 11:09:17,697 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ada2a0f/cc46be712e894e7582bc6f6b03c506bf/FLAGd0b8ee1ea [2025-03-04 11:09:17,877 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:09:17,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c [2025-03-04 11:09:17,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ada2a0f/cc46be712e894e7582bc6f6b03c506bf/FLAGd0b8ee1ea [2025-03-04 11:09:18,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ada2a0f/cc46be712e894e7582bc6f6b03c506bf [2025-03-04 11:09:18,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:09:18,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:09:18,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:09:18,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:09:18,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:09:18,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c2c37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18, skipping insertion in model container [2025-03-04 11:09:18,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:09:18,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:09:18,384 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:09:18,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:09:18,409 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:09:18,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18 WrapperNode [2025-03-04 11:09:18,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:09:18,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:09:18,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:09:18,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:09:18,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,435 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2025-03-04 11:09:18,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:09:18,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:09:18,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:09:18,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:09:18,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,459 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 11:09:18,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:09:18,465 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:09:18,465 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:09:18,465 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:09:18,466 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (1/1) ... [2025-03-04 11:09:18,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:09:18,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:18,488 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 11:09:18,490 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 11:09:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:09:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:09:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:09:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:09:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:09:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:09:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:09:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:09:18,539 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:09:18,540 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:09:18,769 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-03-04 11:09:18,769 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:09:18,776 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:09:18,776 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:09:18,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:09:18 BoogieIcfgContainer [2025-03-04 11:09:18,777 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:09:18,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:09:18,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:09:18,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:09:18,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:09:18" (1/3) ... [2025-03-04 11:09:18,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b18f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:09:18, skipping insertion in model container [2025-03-04 11:09:18,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:09:18" (2/3) ... [2025-03-04 11:09:18,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b18f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:09:18, skipping insertion in model container [2025-03-04 11:09:18,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:09:18" (3/3) ... [2025-03-04 11:09:18,786 INFO L128 eAbstractionObserver]: Analyzing ICFG geo3-ll2_valuebound20.c [2025-03-04 11:09:18,800 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:09:18,801 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo3-ll2_valuebound20.c that has 3 procedures, 85 locations, 1 initial locations, 1 loop locations, and 30 error locations. [2025-03-04 11:09:18,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:09:18,857 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;@2754f312, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:09:18,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2025-03-04 11:09:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 77 states have internal predecessors, (81), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 11:09:18,867 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:18,867 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:18,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:18,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2006358764, now seen corresponding path program 1 times [2025-03-04 11:09:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:18,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194262910] [2025-03-04 11:09:18,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:18,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:18,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:09:18,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:09:18,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:18,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:09:18,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:18,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194262910] [2025-03-04 11:09:18,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194262910] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17453715] [2025-03-04 11:09:18,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:18,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:18,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:18,960 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 11:09:18,962 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 11:09:18,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:09:19,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:09:19,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:19,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:19,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 11:09:19,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:09:19,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:19,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17453715] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:19,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:19,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 11:09:19,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332939998] [2025-03-04 11:09:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:19,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:09:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:19,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:09:19,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:09:19,039 INFO L87 Difference]: Start difference. First operand has 85 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 77 states have internal predecessors, (81), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:09:19,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:19,056 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2025-03-04 11:09:19,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:09:19,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2025-03-04 11:09:19,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:19,063 INFO L225 Difference]: With dead ends: 166 [2025-03-04 11:09:19,063 INFO L226 Difference]: Without dead ends: 78 [2025-03-04 11:09:19,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:09:19,069 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:19,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:09:19,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-04 11:09:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2025-03-04 11:09:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 71 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2025-03-04 11:09:19,096 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 21 [2025-03-04 11:09:19,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:19,097 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2025-03-04 11:09:19,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:09:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2025-03-04 11:09:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 11:09:19,098 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:19,098 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:19,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:09:19,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 11:09:19,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:19,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:19,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1563640623, now seen corresponding path program 1 times [2025-03-04 11:09:19,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:19,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557070214] [2025-03-04 11:09:19,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:19,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:19,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:09:19,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:09:19,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:19,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:19,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888730721] [2025-03-04 11:09:19,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:19,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:19,331 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 11:09:19,332 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 11:09:19,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:09:19,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:09:19,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:19,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:19,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:09:19,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:19,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:19,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557070214] [2025-03-04 11:09:19,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888730721] [2025-03-04 11:09:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888730721] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:19,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:09:19,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874472822] [2025-03-04 11:09:19,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:19,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:09:19,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:19,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:09:19,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:09:19,615 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:19,819 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2025-03-04 11:09:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:09:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2025-03-04 11:09:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:19,820 INFO L225 Difference]: With dead ends: 78 [2025-03-04 11:09:19,820 INFO L226 Difference]: Without dead ends: 76 [2025-03-04 11:09:19,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:09:19,821 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 74 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:19,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 85 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:19,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-04 11:09:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-03-04 11:09:19,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.6666666666666667) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:19,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2025-03-04 11:09:19,827 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 21 [2025-03-04 11:09:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:19,829 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2025-03-04 11:09:19,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2025-03-04 11:09:19,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-04 11:09:19,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:19,832 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:19,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:20,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 11:09:20,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:20,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash -579913812, now seen corresponding path program 1 times [2025-03-04 11:09:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000393595] [2025-03-04 11:09:20,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:20,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:09:20,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:09:20,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:20,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:20,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547161825] [2025-03-04 11:09:20,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:20,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:20,062 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 11:09:20,063 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 11:09:20,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:09:20,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:09:20,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:20,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:20,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:09:20,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:20,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000393595] [2025-03-04 11:09:20,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547161825] [2025-03-04 11:09:20,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547161825] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:20,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:20,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-04 11:09:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877875343] [2025-03-04 11:09:20,252 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:20,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:09:20,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:20,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:09:20,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:09:20,254 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:20,434 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2025-03-04 11:09:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:09:20,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2025-03-04 11:09:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:20,435 INFO L225 Difference]: With dead ends: 76 [2025-03-04 11:09:20,435 INFO L226 Difference]: Without dead ends: 72 [2025-03-04 11:09:20,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:09:20,436 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 72 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:20,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 107 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-03-04 11:09:20,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-03-04 11:09:20,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 65 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2025-03-04 11:09:20,440 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 23 [2025-03-04 11:09:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:20,441 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2025-03-04 11:09:20,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2025-03-04 11:09:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-04 11:09:20,441 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:20,441 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:20,447 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 11:09:20,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:20,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:20,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash -797458959, now seen corresponding path program 1 times [2025-03-04 11:09:20,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:20,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543405476] [2025-03-04 11:09:20,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:20,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:20,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 11:09:20,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 11:09:20,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:20,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:20,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31855266] [2025-03-04 11:09:20,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:20,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:20,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:20,656 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 11:09:20,658 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 11:09:20,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 11:09:20,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 11:09:20,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:20,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:20,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 11:09:20,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:20,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:21,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:21,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543405476] [2025-03-04 11:09:21,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:21,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31855266] [2025-03-04 11:09:21,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31855266] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:21,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:21,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:09:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271912588] [2025-03-04 11:09:21,012 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:21,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:09:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:21,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:09:21,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:09:21,013 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:21,215 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2025-03-04 11:09:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:09:21,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2025-03-04 11:09:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:21,216 INFO L225 Difference]: With dead ends: 110 [2025-03-04 11:09:21,216 INFO L226 Difference]: Without dead ends: 106 [2025-03-04 11:09:21,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:09:21,217 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:21,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 146 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-03-04 11:09:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 92. [2025-03-04 11:09:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 84 states have internal predecessors, (96), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2025-03-04 11:09:21,222 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 24 [2025-03-04 11:09:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:21,222 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2025-03-04 11:09:21,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:09:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2025-03-04 11:09:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 11:09:21,223 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:21,223 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:21,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 11:09:21,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:21,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:21,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1048576074, now seen corresponding path program 1 times [2025-03-04 11:09:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:21,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872882538] [2025-03-04 11:09:21,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:21,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 11:09:21,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 11:09:21,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:21,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:21,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468975435] [2025-03-04 11:09:21,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:21,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:21,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:21,441 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 11:09:21,442 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 11:09:21,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 11:09:21,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 11:09:21,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:21,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:21,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:09:21,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:21,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:21,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:21,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872882538] [2025-03-04 11:09:21,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:21,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468975435] [2025-03-04 11:09:21,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468975435] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:09:21,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:09:21,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-03-04 11:09:21,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287729806] [2025-03-04 11:09:21,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:21,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 11:09:21,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:21,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 11:09:21,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:09:21,760 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 11:09:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:22,045 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2025-03-04 11:09:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:09:22,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 25 [2025-03-04 11:09:22,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:22,046 INFO L225 Difference]: With dead ends: 106 [2025-03-04 11:09:22,046 INFO L226 Difference]: Without dead ends: 104 [2025-03-04 11:09:22,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:09:22,047 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 300 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:22,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 134 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:22,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-04 11:09:22,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2025-03-04 11:09:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 82 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2025-03-04 11:09:22,055 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 25 [2025-03-04 11:09:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:22,055 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2025-03-04 11:09:22,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 11:09:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2025-03-04 11:09:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-04 11:09:22,056 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:22,057 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:22,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:22,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:22,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:22,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1853880049, now seen corresponding path program 1 times [2025-03-04 11:09:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:22,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452808304] [2025-03-04 11:09:22,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:22,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 11:09:22,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 11:09:22,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:22,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:22,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:22,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452808304] [2025-03-04 11:09:22,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452808304] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:22,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275277509] [2025-03-04 11:09:22,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:22,439 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 11:09:22,444 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 11:09:22,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 11:09:22,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 11:09:22,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:22,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:22,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:09:22,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:22,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:29,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275277509] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:29,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:09:29,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2025-03-04 11:09:29,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057907039] [2025-03-04 11:09:29,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:29,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:09:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:29,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:09:29,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=79, Unknown=3, NotChecked=0, Total=110 [2025-03-04 11:09:29,528 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:09:29,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:29,801 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2025-03-04 11:09:29,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:09:29,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2025-03-04 11:09:29,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:29,802 INFO L225 Difference]: With dead ends: 105 [2025-03-04 11:09:29,802 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:09:29,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2025-03-04 11:09:29,803 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 161 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:29,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 188 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:09:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2025-03-04 11:09:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 81 states have internal predecessors, (91), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2025-03-04 11:09:29,808 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 26 [2025-03-04 11:09:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:29,808 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2025-03-04 11:09:29,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:09:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2025-03-04 11:09:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 11:09:29,808 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:29,808 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:29,816 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 11:09:30,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:30,009 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:30,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:30,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1635706648, now seen corresponding path program 1 times [2025-03-04 11:09:30,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:30,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242639507] [2025-03-04 11:09:30,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:30,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 11:09:30,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 11:09:30,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:30,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:30,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242639507] [2025-03-04 11:09:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242639507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:30,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:30,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747609870] [2025-03-04 11:09:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:30,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:30,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:30,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:30,066 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:30,184 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2025-03-04 11:09:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:09:30,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2025-03-04 11:09:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:30,185 INFO L225 Difference]: With dead ends: 104 [2025-03-04 11:09:30,185 INFO L226 Difference]: Without dead ends: 102 [2025-03-04 11:09:30,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:09:30,186 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:30,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 88 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-04 11:09:30,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 88. [2025-03-04 11:09:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.459016393442623) internal successors, (89), 80 states have internal predecessors, (89), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:30,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2025-03-04 11:09:30,196 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 27 [2025-03-04 11:09:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:30,197 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2025-03-04 11:09:30,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2025-03-04 11:09:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 11:09:30,198 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:30,198 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:30,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 11:09:30,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:30,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash 832701485, now seen corresponding path program 1 times [2025-03-04 11:09:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:30,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857889144] [2025-03-04 11:09:30,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:30,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 11:09:30,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 11:09:30,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:30,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:30,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857889144] [2025-03-04 11:09:30,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857889144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:30,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:30,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:30,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055177393] [2025-03-04 11:09:30,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:30,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:30,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:30,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:30,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:30,250 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:30,368 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2025-03-04 11:09:30,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:09:30,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2025-03-04 11:09:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:30,370 INFO L225 Difference]: With dead ends: 103 [2025-03-04 11:09:30,370 INFO L226 Difference]: Without dead ends: 101 [2025-03-04 11:09:30,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:09:30,370 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 84 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:30,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 89 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:30,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-04 11:09:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2025-03-04 11:09:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 79 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2025-03-04 11:09:30,380 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 28 [2025-03-04 11:09:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:30,380 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2025-03-04 11:09:30,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2025-03-04 11:09:30,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-04 11:09:30,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:30,380 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:30,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 11:09:30,381 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:30,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:30,381 INFO L85 PathProgramCache]: Analyzing trace with hash 43942278, now seen corresponding path program 1 times [2025-03-04 11:09:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490539933] [2025-03-04 11:09:30,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:30,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 11:09:30,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 11:09:30,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:30,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92103118] [2025-03-04 11:09:30,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:30,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:30,394 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 11:09:30,396 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 11:09:30,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 11:09:30,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 11:09:30,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:30,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:09:30,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:30,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:30,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490539933] [2025-03-04 11:09:30,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:30,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92103118] [2025-03-04 11:09:30,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92103118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:30,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:30,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:09:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994323784] [2025-03-04 11:09:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:30,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:09:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:30,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:09:30,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:09:30,533 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:30,628 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2025-03-04 11:09:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:09:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2025-03-04 11:09:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:30,630 INFO L225 Difference]: With dead ends: 101 [2025-03-04 11:09:30,630 INFO L226 Difference]: Without dead ends: 99 [2025-03-04 11:09:30,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:09:30,631 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 55 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:30,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 128 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-04 11:09:30,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2025-03-04 11:09:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.378787878787879) internal successors, (91), 84 states have internal predecessors, (91), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2025-03-04 11:09:30,637 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 29 [2025-03-04 11:09:30,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:30,637 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2025-03-04 11:09:30,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2025-03-04 11:09:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 11:09:30,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:30,638 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:30,644 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 11:09:30,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:30,842 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:30,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1362210635, now seen corresponding path program 1 times [2025-03-04 11:09:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369031630] [2025-03-04 11:09:30,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:30,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 11:09:30,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 11:09:30,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:30,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760655654] [2025-03-04 11:09:30,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:30,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:30,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:30,851 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 11:09:30,852 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 11:09:30,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 11:09:30,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 11:09:30,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:30,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:30,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:09:30,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:32,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:32,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:32,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369031630] [2025-03-04 11:09:32,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:32,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760655654] [2025-03-04 11:09:32,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760655654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:32,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:32,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547384578] [2025-03-04 11:09:32,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:32,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:32,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:32,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2025-03-04 11:09:32,047 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:33,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:09:34,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:09:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:34,440 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2025-03-04 11:09:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:09:34,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2025-03-04 11:09:34,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:34,441 INFO L225 Difference]: With dead ends: 101 [2025-03-04 11:09:34,441 INFO L226 Difference]: Without dead ends: 99 [2025-03-04 11:09:34,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2025-03-04 11:09:34,442 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 23 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:34,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 146 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 2.4s Time] [2025-03-04 11:09:34,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-04 11:09:34,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2025-03-04 11:09:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 85 states have internal predecessors, (91), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2025-03-04 11:09:34,450 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 30 [2025-03-04 11:09:34,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:34,450 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2025-03-04 11:09:34,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2025-03-04 11:09:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 11:09:34,451 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:34,452 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:34,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 11:09:34,656 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,SelfDestructingSolverStorable9 [2025-03-04 11:09:34,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:34,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:34,656 INFO L85 PathProgramCache]: Analyzing trace with hash -721143260, now seen corresponding path program 1 times [2025-03-04 11:09:34,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:34,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782659971] [2025-03-04 11:09:34,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:34,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:34,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:09:34,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:09:34,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:34,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:34,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886142724] [2025-03-04 11:09:34,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:34,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:34,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:34,671 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 11:09:34,672 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 11:09:34,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:09:34,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:09:34,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:34,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:34,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:09:34,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:34,782 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782659971] [2025-03-04 11:09:34,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886142724] [2025-03-04 11:09:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886142724] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:34,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:34,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416904531] [2025-03-04 11:09:34,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:34,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:34,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:34,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:34,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:34,784 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:34,932 INFO L93 Difference]: Finished difference Result 101 states and 104 transitions. [2025-03-04 11:09:34,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:09:34,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2025-03-04 11:09:34,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:34,933 INFO L225 Difference]: With dead ends: 101 [2025-03-04 11:09:34,933 INFO L226 Difference]: Without dead ends: 87 [2025-03-04 11:09:34,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:34,934 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 20 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:34,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-04 11:09:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2025-03-04 11:09:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 77 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2025-03-04 11:09:34,937 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 31 [2025-03-04 11:09:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:34,937 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2025-03-04 11:09:34,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:09:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2025-03-04 11:09:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-04 11:09:34,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:34,938 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:34,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 11:09:35,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:35,138 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:35,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:35,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1003054030, now seen corresponding path program 1 times [2025-03-04 11:09:35,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:35,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266851558] [2025-03-04 11:09:35,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:35,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:35,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 11:09:35,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 11:09:35,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:35,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:35,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:35,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266851558] [2025-03-04 11:09:35,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266851558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:35,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:35,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:09:35,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143766601] [2025-03-04 11:09:35,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:35,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:09:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:35,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:09:35,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:09:35,172 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:35,184 INFO L93 Difference]: Finished difference Result 87 states and 90 transitions. [2025-03-04 11:09:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:09:35,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2025-03-04 11:09:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:35,185 INFO L225 Difference]: With dead ends: 87 [2025-03-04 11:09:35,185 INFO L226 Difference]: Without dead ends: 85 [2025-03-04 11:09:35,185 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 11:09:35,186 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:35,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 125 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:09:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2025-03-04 11:09:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2025-03-04 11:09:35,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 77 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2025-03-04 11:09:35,189 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 39 [2025-03-04 11:09:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:35,190 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2025-03-04 11:09:35,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2025-03-04 11:09:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 11:09:35,190 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:35,190 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:35,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 11:09:35,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:35,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:35,191 INFO L85 PathProgramCache]: Analyzing trace with hash -281048852, now seen corresponding path program 1 times [2025-03-04 11:09:35,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:35,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439093466] [2025-03-04 11:09:35,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:35,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:35,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:09:35,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:09:35,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:35,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:35,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027525469] [2025-03-04 11:09:35,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:35,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:35,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:35,203 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 11:09:35,205 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 11:09:35,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:09:35,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:09:35,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:35,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:35,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:09:35,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:35,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:35,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:35,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439093466] [2025-03-04 11:09:35,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:35,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027525469] [2025-03-04 11:09:35,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027525469] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:35,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:35,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150575791] [2025-03-04 11:09:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:35,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:35,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:35,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:35,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:35,310 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:35,415 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2025-03-04 11:09:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:09:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2025-03-04 11:09:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:35,415 INFO L225 Difference]: With dead ends: 88 [2025-03-04 11:09:35,415 INFO L226 Difference]: Without dead ends: 87 [2025-03-04 11:09:35,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:35,417 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 38 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:35,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 50 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:35,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-04 11:09:35,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2025-03-04 11:09:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 78 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2025-03-04 11:09:35,422 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 45 [2025-03-04 11:09:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:35,422 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2025-03-04 11:09:35,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2025-03-04 11:09:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-04 11:09:35,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:35,424 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:35,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:35,625 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,SelfDestructingSolverStorable12 [2025-03-04 11:09:35,625 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:35,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:35,625 INFO L85 PathProgramCache]: Analyzing trace with hash -122579826, now seen corresponding path program 1 times [2025-03-04 11:09:35,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:35,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86227082] [2025-03-04 11:09:35,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:35,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:09:35,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:09:35,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:35,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108029103] [2025-03-04 11:09:35,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:35,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:35,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:35,643 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 11:09:35,643 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 11:09:35,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:09:35,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:09:35,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:35,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:35,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:09:35,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:35,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:35,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86227082] [2025-03-04 11:09:35,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108029103] [2025-03-04 11:09:35,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108029103] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:35,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:09:35,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:09:35,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675703538] [2025-03-04 11:09:35,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:35,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:35,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:35,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:35,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:35,750 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:35,859 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions. [2025-03-04 11:09:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:09:35,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2025-03-04 11:09:35,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:35,860 INFO L225 Difference]: With dead ends: 88 [2025-03-04 11:09:35,860 INFO L226 Difference]: Without dead ends: 87 [2025-03-04 11:09:35,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:09:35,861 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:35,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 61 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:09:35,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-04 11:09:35,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2025-03-04 11:09:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 79 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2025-03-04 11:09:35,865 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 46 [2025-03-04 11:09:35,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:35,865 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2025-03-04 11:09:35,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:09:35,865 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2025-03-04 11:09:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 11:09:35,865 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:35,866 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:35,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:09:36,066 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,SelfDestructingSolverStorable13 [2025-03-04 11:09:36,066 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:36,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1835094804, now seen corresponding path program 1 times [2025-03-04 11:09:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:36,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872268447] [2025-03-04 11:09:36,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:36,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 11:09:36,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 11:09:36,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:36,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458343994] [2025-03-04 11:09:36,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:36,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:36,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:36,079 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 11:09:36,080 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 11:09:36,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 11:09:36,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 11:09:36,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:36,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:36,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 11:09:36,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:36,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:36,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:36,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872268447] [2025-03-04 11:09:36,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:36,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458343994] [2025-03-04 11:09:36,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458343994] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:36,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:36,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 11:09:36,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135085134] [2025-03-04 11:09:36,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:36,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 11:09:36,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:36,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 11:09:36,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:09:36,473 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:36,670 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2025-03-04 11:09:36,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:09:36,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2025-03-04 11:09:36,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:36,671 INFO L225 Difference]: With dead ends: 125 [2025-03-04 11:09:36,671 INFO L226 Difference]: Without dead ends: 121 [2025-03-04 11:09:36,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:09:36,672 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 169 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:36,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 126 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-04 11:09:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2025-03-04 11:09:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 80 states have (on average 1.3625) internal successors, (109), 98 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:36,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2025-03-04 11:09:36,676 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 48 [2025-03-04 11:09:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:36,676 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2025-03-04 11:09:36,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:36,677 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2025-03-04 11:09:36,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-04 11:09:36,677 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:36,677 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:36,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 11:09:36,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-04 11:09:36,878 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:36,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1705452874, now seen corresponding path program 1 times [2025-03-04 11:09:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:36,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620736188] [2025-03-04 11:09:36,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:36,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:36,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 11:09:36,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 11:09:36,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:36,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:36,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147382800] [2025-03-04 11:09:36,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:36,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:36,892 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:36,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:09:36,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 11:09:36,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 11:09:36,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:36,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:36,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 11:09:36,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:37,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:37,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620736188] [2025-03-04 11:09:37,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147382800] [2025-03-04 11:09:37,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147382800] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:37,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:37,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-04 11:09:37,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287419102] [2025-03-04 11:09:37,663 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:37,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 11:09:37,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:37,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 11:09:37,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:09:37,664 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 13 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:38,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:38,120 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2025-03-04 11:09:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:09:38,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 13 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 50 [2025-03-04 11:09:38,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:38,121 INFO L225 Difference]: With dead ends: 107 [2025-03-04 11:09:38,121 INFO L226 Difference]: Without dead ends: 102 [2025-03-04 11:09:38,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:09:38,122 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 147 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:38,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 138 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:09:38,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-04 11:09:38,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2025-03-04 11:09:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 91 states have internal predecessors, (99), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions. [2025-03-04 11:09:38,129 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 50 [2025-03-04 11:09:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:38,129 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 111 transitions. [2025-03-04 11:09:38,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 13 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:38,130 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions. [2025-03-04 11:09:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 11:09:38,130 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:38,130 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:38,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:38,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-04 11:09:38,331 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:38,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1978447723, now seen corresponding path program 1 times [2025-03-04 11:09:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:38,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510988634] [2025-03-04 11:09:38,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:38,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 11:09:38,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:09:38,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:38,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990437089] [2025-03-04 11:09:38,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:38,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:38,343 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:38,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:09:38,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 11:09:38,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:09:38,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:38,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:38,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 11:09:38,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:38,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510988634] [2025-03-04 11:09:38,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990437089] [2025-03-04 11:09:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990437089] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:38,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:38,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:09:38,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712703294] [2025-03-04 11:09:38,915 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:38,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:09:38,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:38,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:09:38,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:09:38,916 INFO L87 Difference]: Start difference. First operand 100 states and 111 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:39,130 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2025-03-04 11:09:39,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:09:39,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 53 [2025-03-04 11:09:39,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:39,131 INFO L225 Difference]: With dead ends: 118 [2025-03-04 11:09:39,131 INFO L226 Difference]: Without dead ends: 114 [2025-03-04 11:09:39,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:09:39,132 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 200 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:39,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 111 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:39,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-04 11:09:39,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2025-03-04 11:09:39,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 100 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2025-03-04 11:09:39,139 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 53 [2025-03-04 11:09:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:39,139 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2025-03-04 11:09:39,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2025-03-04 11:09:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-04 11:09:39,140 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:39,140 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:39,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:39,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:39,342 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:39,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1202337286, now seen corresponding path program 1 times [2025-03-04 11:09:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129231593] [2025-03-04 11:09:39,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:39,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:39,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 11:09:39,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 11:09:39,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:39,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:39,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954319375] [2025-03-04 11:09:39,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:39,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:39,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:39,359 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:39,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:09:39,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 11:09:39,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 11:09:39,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:39,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:39,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-04 11:09:39,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 11:09:39,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:40,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:40,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129231593] [2025-03-04 11:09:40,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:40,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954319375] [2025-03-04 11:09:40,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954319375] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:40,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:40,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:09:40,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737782587] [2025-03-04 11:09:40,313 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:40,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:09:40,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:40,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:09:40,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:09:40,314 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:40,609 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2025-03-04 11:09:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:09:40,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 54 [2025-03-04 11:09:40,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:40,610 INFO L225 Difference]: With dead ends: 118 [2025-03-04 11:09:40,610 INFO L226 Difference]: Without dead ends: 116 [2025-03-04 11:09:40,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:09:40,611 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 105 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:40,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 179 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-04 11:09:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2025-03-04 11:09:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 101 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 119 transitions. [2025-03-04 11:09:40,616 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 119 transitions. Word has length 54 [2025-03-04 11:09:40,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:40,617 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 119 transitions. [2025-03-04 11:09:40,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:09:40,617 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 119 transitions. [2025-03-04 11:09:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-04 11:09:40,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:40,617 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:40,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:40,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 11:09:40,822 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:40,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1382249783, now seen corresponding path program 1 times [2025-03-04 11:09:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251469301] [2025-03-04 11:09:40,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:40,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:40,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 11:09:40,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 11:09:40,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:40,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:40,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579258200] [2025-03-04 11:09:40,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:40,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:40,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:40,832 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:40,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:09:40,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 11:09:40,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 11:09:40,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:40,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:40,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:09:40,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:41,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:41,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251469301] [2025-03-04 11:09:41,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579258200] [2025-03-04 11:09:41,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579258200] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:41,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:41,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-04 11:09:41,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184133465] [2025-03-04 11:09:41,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:41,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:09:41,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:41,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:09:41,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:09:41,171 INFO L87 Difference]: Start difference. First operand 110 states and 119 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:09:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:41,441 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2025-03-04 11:09:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:09:41,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2025-03-04 11:09:41,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:41,442 INFO L225 Difference]: With dead ends: 110 [2025-03-04 11:09:41,442 INFO L226 Difference]: Without dead ends: 108 [2025-03-04 11:09:41,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:09:41,442 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:41,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 144 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:09:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2025-03-04 11:09:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2025-03-04 11:09:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 99 states have internal predecessors, (104), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2025-03-04 11:09:41,448 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 55 [2025-03-04 11:09:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:41,448 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2025-03-04 11:09:41,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:09:41,448 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2025-03-04 11:09:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-04 11:09:41,449 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:41,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:41,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 11:09:41,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:41,653 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:41,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:41,653 INFO L85 PathProgramCache]: Analyzing trace with hash 99929700, now seen corresponding path program 1 times [2025-03-04 11:09:41,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:41,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358139398] [2025-03-04 11:09:41,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:41,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:41,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-04 11:09:41,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-04 11:09:41,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:41,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701350687] [2025-03-04 11:09:41,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:41,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:41,663 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:41,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:09:41,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-04 11:09:41,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-04 11:09:41,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:41,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:41,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:09:41,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:41,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:09:42,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:42,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358139398] [2025-03-04 11:09:42,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:42,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701350687] [2025-03-04 11:09:42,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701350687] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:42,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:42,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-04 11:09:42,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747593205] [2025-03-04 11:09:42,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:42,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:09:42,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:42,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:09:42,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:09:42,119 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:09:42,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:42,566 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2025-03-04 11:09:42,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:09:42,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 56 [2025-03-04 11:09:42,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:42,567 INFO L225 Difference]: With dead ends: 108 [2025-03-04 11:09:42,567 INFO L226 Difference]: Without dead ends: 96 [2025-03-04 11:09:42,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:09:42,567 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:42,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 115 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:09:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2025-03-04 11:09:42,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2025-03-04 11:09:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 87 states have internal predecessors, (90), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2025-03-04 11:09:42,578 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 56 [2025-03-04 11:09:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:42,578 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2025-03-04 11:09:42,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:09:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2025-03-04 11:09:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 11:09:42,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:42,579 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:42,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:42,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:42,785 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:42,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2006611927, now seen corresponding path program 1 times [2025-03-04 11:09:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:42,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129007041] [2025-03-04 11:09:42,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:42,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:42,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 11:09:42,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 11:09:42,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:42,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:09:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129007041] [2025-03-04 11:09:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129007041] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968707326] [2025-03-04 11:09:42,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:42,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:42,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:42,860 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:42,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:09:42,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 11:09:42,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 11:09:42,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:42,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:42,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:09:42,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:09:42,925 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:09:42,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968707326] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:09:42,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:42,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 11:09:42,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479905576] [2025-03-04 11:09:42,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:09:42,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:09:42,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:42,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:09:42,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:09:42,926 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 11:09:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:42,942 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2025-03-04 11:09:42,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:09:42,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2025-03-04 11:09:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:42,943 INFO L225 Difference]: With dead ends: 96 [2025-03-04 11:09:42,943 INFO L226 Difference]: Without dead ends: 95 [2025-03-04 11:09:42,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:09:42,944 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:42,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 128 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:09:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2025-03-04 11:09:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2025-03-04 11:09:42,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.1282051282051282) internal successors, (88), 86 states have internal predecessors, (88), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2025-03-04 11:09:42,952 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 63 [2025-03-04 11:09:42,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:42,952 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2025-03-04 11:09:42,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 11:09:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2025-03-04 11:09:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 11:09:42,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:42,953 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:42,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:43,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:43,153 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:43,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2075427599, now seen corresponding path program 1 times [2025-03-04 11:09:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691021993] [2025-03-04 11:09:43,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:43,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 11:09:43,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 11:09:43,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:43,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:09:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691021993] [2025-03-04 11:09:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691021993] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389056188] [2025-03-04 11:09:43,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:09:43,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:43,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:43,208 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:43,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:09:43,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 11:09:43,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 11:09:43,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:09:43,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:43,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:09:43,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:09:43,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:09:43,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389056188] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:09:43,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:09:43,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 11:09:43,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156131436] [2025-03-04 11:09:43,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:43,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:09:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:43,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:09:43,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:09:43,330 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-04 11:09:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:43,353 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2025-03-04 11:09:43,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:09:43,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 64 [2025-03-04 11:09:43,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:43,356 INFO L225 Difference]: With dead ends: 139 [2025-03-04 11:09:43,356 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:09:43,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:09:43,357 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 18 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:43,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 161 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:09:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:09:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 129. [2025-03-04 11:09:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 118 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:09:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2025-03-04 11:09:43,366 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 64 [2025-03-04 11:09:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:43,366 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2025-03-04 11:09:43,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-04 11:09:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2025-03-04 11:09:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 11:09:43,367 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:43,367 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:43,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 11:09:43,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:43,568 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1169627879, now seen corresponding path program 2 times [2025-03-04 11:09:43,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:43,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474124051] [2025-03-04 11:09:43,568 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:43,573 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-04 11:09:43,581 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 11:09:43,581 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:43,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154409345] [2025-03-04 11:09:43,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:43,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:43,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:43,584 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:43,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:09:43,603 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-04 11:09:43,632 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 11:09:43,632 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:43,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:43,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-04 11:09:43,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:09:44,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:44,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:44,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474124051] [2025-03-04 11:09:44,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:44,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154409345] [2025-03-04 11:09:44,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154409345] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:44,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:44,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-03-04 11:09:44,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324911638] [2025-03-04 11:09:44,527 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:44,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:09:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:44,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:09:44,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:09:44,528 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:44,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:44,944 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2025-03-04 11:09:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:09:44,945 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 72 [2025-03-04 11:09:44,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:44,946 INFO L225 Difference]: With dead ends: 145 [2025-03-04 11:09:44,946 INFO L226 Difference]: Without dead ends: 143 [2025-03-04 11:09:44,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:09:44,946 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 114 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:44,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 177 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:09:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-04 11:09:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 129. [2025-03-04 11:09:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 110 states have (on average 1.1636363636363636) internal successors, (128), 118 states have internal predecessors, (128), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:09:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 144 transitions. [2025-03-04 11:09:44,953 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 144 transitions. Word has length 72 [2025-03-04 11:09:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:44,954 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 144 transitions. [2025-03-04 11:09:44,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 144 transitions. [2025-03-04 11:09:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-04 11:09:44,954 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:44,954 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:44,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 11:09:45,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-04 11:09:45,155 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:45,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:45,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1637822896, now seen corresponding path program 2 times [2025-03-04 11:09:45,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:45,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41488441] [2025-03-04 11:09:45,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:45,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:45,158 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 77 statements into 2 equivalence classes. [2025-03-04 11:09:45,165 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 77 of 77 statements. [2025-03-04 11:09:45,165 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:45,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:45,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005666069] [2025-03-04 11:09:45,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:45,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:45,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:45,169 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:45,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:09:45,188 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 77 statements into 2 equivalence classes. [2025-03-04 11:09:45,203 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 77 of 77 statements. [2025-03-04 11:09:45,203 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:45,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:45,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 11:09:45,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:09:45,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41488441] [2025-03-04 11:09:45,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005666069] [2025-03-04 11:09:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005666069] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:45,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:09:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27208282] [2025-03-04 11:09:45,977 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:45,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:09:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:45,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:09:45,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:09:45,978 INFO L87 Difference]: Start difference. First operand 129 states and 144 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:46,342 INFO L93 Difference]: Finished difference Result 141 states and 153 transitions. [2025-03-04 11:09:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:09:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 77 [2025-03-04 11:09:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:46,343 INFO L225 Difference]: With dead ends: 141 [2025-03-04 11:09:46,343 INFO L226 Difference]: Without dead ends: 137 [2025-03-04 11:09:46,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:09:46,343 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 120 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:46,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 168 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:09:46,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-04 11:09:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2025-03-04 11:09:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 117 states have (on average 1.1282051282051282) internal successors, (132), 125 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:09:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2025-03-04 11:09:46,350 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 77 [2025-03-04 11:09:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:46,351 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2025-03-04 11:09:46,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2025-03-04 11:09:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-04 11:09:46,351 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:46,351 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:46,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 11:09:46,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-04 11:09:46,552 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:46,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:46,552 INFO L85 PathProgramCache]: Analyzing trace with hash 767097793, now seen corresponding path program 2 times [2025-03-04 11:09:46,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:46,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879129562] [2025-03-04 11:09:46,552 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:46,555 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-03-04 11:09:46,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 11:09:46,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:46,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:46,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847230269] [2025-03-04 11:09:46,568 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:09:46,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:46,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:46,572 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:46,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:09:46,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-03-04 11:09:46,906 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 11:09:46,906 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:09:46,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:46,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-04 11:09:46,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:49,073 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:09:49,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:49,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:49,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879129562] [2025-03-04 11:09:49,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:49,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847230269] [2025-03-04 11:09:49,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847230269] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:49,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:49,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-04 11:09:49,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110436950] [2025-03-04 11:09:49,850 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:49,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 11:09:49,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:49,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 11:09:49,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=299, Unknown=1, NotChecked=0, Total=380 [2025-03-04 11:09:49,853 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:50,904 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2025-03-04 11:09:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 11:09:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 78 [2025-03-04 11:09:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:50,906 INFO L225 Difference]: With dead ends: 141 [2025-03-04 11:09:50,906 INFO L226 Difference]: Without dead ends: 131 [2025-03-04 11:09:50,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=105, Invalid=400, Unknown=1, NotChecked=0, Total=506 [2025-03-04 11:09:50,906 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 107 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:50,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 247 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 11:09:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-04 11:09:50,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2025-03-04 11:09:50,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 118 states have internal predecessors, (123), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:09:50,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2025-03-04 11:09:50,913 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 78 [2025-03-04 11:09:50,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:50,913 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2025-03-04 11:09:50,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:09:50,913 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2025-03-04 11:09:50,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-04 11:09:50,914 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:50,914 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:50,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 11:09:51,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:51,114 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:51,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1559496674, now seen corresponding path program 3 times [2025-03-04 11:09:51,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:51,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933995654] [2025-03-04 11:09:51,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:09:51,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:51,119 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 96 statements into 4 equivalence classes. [2025-03-04 11:09:51,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 96 of 96 statements. [2025-03-04 11:09:51,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 11:09:51,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:51,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29485523] [2025-03-04 11:09:51,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:09:51,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:51,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:51,133 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:51,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:09:51,154 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 96 statements into 4 equivalence classes. [2025-03-04 11:09:51,870 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 96 of 96 statements. [2025-03-04 11:09:51,870 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 11:09:51,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:51,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-03-04 11:09:51,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:09:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:09:52,664 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:09:52,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:09:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933995654] [2025-03-04 11:09:52,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:09:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29485523] [2025-03-04 11:09:52,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29485523] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:09:52,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:09:52,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2025-03-04 11:09:52,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394112264] [2025-03-04 11:09:52,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:09:52,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:09:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:09:52,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:09:52,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:09:52,865 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:09:53,349 INFO L93 Difference]: Finished difference Result 149 states and 155 transitions. [2025-03-04 11:09:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 11:09:53,349 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 96 [2025-03-04 11:09:53,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:09:53,350 INFO L225 Difference]: With dead ends: 149 [2025-03-04 11:09:53,350 INFO L226 Difference]: Without dead ends: 147 [2025-03-04 11:09:53,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:09:53,350 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 98 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:09:53,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 248 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:09:53,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-03-04 11:09:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 133. [2025-03-04 11:09:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 114 states have (on average 1.105263157894737) internal successors, (126), 122 states have internal predecessors, (126), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:09:53,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2025-03-04 11:09:53,364 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 96 [2025-03-04 11:09:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:09:53,364 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2025-03-04 11:09:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:09:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2025-03-04 11:09:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-04 11:09:53,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:09:53,365 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:09:53,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-04 11:09:53,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:53,566 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:09:53,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:09:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash 279430709, now seen corresponding path program 3 times [2025-03-04 11:09:53,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:09:53,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610953945] [2025-03-04 11:09:53,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:09:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:09:53,569 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 101 statements into 4 equivalence classes. [2025-03-04 11:09:53,577 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 101 of 101 statements. [2025-03-04 11:09:53,577 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 11:09:53,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:09:53,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21013493] [2025-03-04 11:09:53,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:09:53,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:09:53,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:09:53,580 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:09:53,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:09:53,600 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 101 statements into 4 equivalence classes. [2025-03-04 11:09:53,648 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 47 of 101 statements. [2025-03-04 11:09:53,648 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 11:09:53,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:09:53,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 11:09:53,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:10:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 54 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-03-04 11:10:39,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:10:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:10:52,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:10:52,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610953945] [2025-03-04 11:10:52,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:10:52,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21013493] [2025-03-04 11:10:52,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21013493] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:10:52,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:10:52,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 25 [2025-03-04 11:10:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737573497] [2025-03-04 11:10:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:10:52,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:10:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:10:52,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:10:52,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=493, Unknown=6, NotChecked=0, Total=650 [2025-03-04 11:10:52,700 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:10:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:10:53,252 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2025-03-04 11:10:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:10:53,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 101 [2025-03-04 11:10:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:10:53,253 INFO L225 Difference]: With dead ends: 133 [2025-03-04 11:10:53,253 INFO L226 Difference]: Without dead ends: 131 [2025-03-04 11:10:53,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 47.2s TimeCoverageRelationStatistics Valid=171, Invalid=579, Unknown=6, NotChecked=0, Total=756 [2025-03-04 11:10:53,253 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 82 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:10:53,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 151 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:10:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-04 11:10:53,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2025-03-04 11:10:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 114 states have (on average 1.0789473684210527) internal successors, (123), 120 states have internal predecessors, (123), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:10:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2025-03-04 11:10:53,261 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 101 [2025-03-04 11:10:53,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:10:53,261 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2025-03-04 11:10:53,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:10:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2025-03-04 11:10:53,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 11:10:53,263 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:10:53,263 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:10:53,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-04 11:10:53,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 11:10:53,463 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2025-03-04 11:10:53,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:10:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash 72417404, now seen corresponding path program 3 times [2025-03-04 11:10:53,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:10:53,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565828968] [2025-03-04 11:10:53,464 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:10:53,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:10:53,467 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 102 statements into 4 equivalence classes. [2025-03-04 11:10:53,474 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 11:10:53,474 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 11:10:53,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:10:53,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661128465] [2025-03-04 11:10:53,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:10:53,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:10:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:10:53,477 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:10:53,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:10:53,499 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 102 statements into 4 equivalence classes. [2025-03-04 11:10:53,558 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 48 of 102 statements. [2025-03-04 11:10:53,558 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 11:10:53,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:10:53,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 11:10:53,560 INFO L279 TraceCheckSpWp]: Computing forward predicates...