./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.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 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:11:56,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:11:56,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:11:56,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:11:56,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:11:56,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:11:56,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:11:56,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:11:56,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:11:56,230 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:11:56,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:11:56,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:11:56,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:11:56,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:11:56,232 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:11:56,232 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:11:56,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:11:56,233 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:11:56,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:11:56,234 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 -> 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 [2025-03-17 15:11:56,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:11:56,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:11:56,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:11:56,482 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:11:56,482 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:11:56,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2025-03-17 15:11:57,624 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38938ee39/8c32d9f86e174e47b3800b4dad52f35d/FLAGa9e94cb84 [2025-03-17 15:11:57,840 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:11:57,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2025-03-17 15:11:57,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38938ee39/8c32d9f86e174e47b3800b4dad52f35d/FLAGa9e94cb84 [2025-03-17 15:11:58,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38938ee39/8c32d9f86e174e47b3800b4dad52f35d [2025-03-17 15:11:58,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:11:58,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:11:58,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:11:58,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:11:58,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:11:58,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55619b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58, skipping insertion in model container [2025-03-17 15:11:58,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:11:58,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:11:58,337 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:11:58,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:11:58,367 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:11:58,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58 WrapperNode [2025-03-17 15:11:58,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:11:58,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:11:58,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:11:58,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:11:58,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,393 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2025-03-17 15:11:58,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:11:58,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:11:58,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:11:58,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:11:58,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,417 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 15:11:58,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,420 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:11:58,426 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:11:58,426 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:11:58,426 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:11:58,430 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (1/1) ... [2025-03-17 15:11:58,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:11:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:58,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:11:58,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:11:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:11:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 15:11:58,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 15:11:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:11:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:11:58,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:11:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:11:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:11:58,523 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:11:58,525 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:11:58,936 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2025-03-17 15:11:58,936 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:11:58,946 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:11:58,946 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:11:58,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:11:58 BoogieIcfgContainer [2025-03-17 15:11:58,946 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:11:58,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:11:58,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:11:58,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:11:58,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:11:58" (1/3) ... [2025-03-17 15:11:58,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d070871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:11:58, skipping insertion in model container [2025-03-17 15:11:58,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:58" (2/3) ... [2025-03-17 15:11:58,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d070871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:11:58, skipping insertion in model container [2025-03-17 15:11:58,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:11:58" (3/3) ... [2025-03-17 15:11:58,954 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound50.c [2025-03-17 15:11:58,963 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:11:58,964 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_unwindbound50.c that has 3 procedures, 142 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2025-03-17 15:11:59,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:11:59,009 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;@3ab02394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:11:59,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-03-17 15:11:59,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 72 states have (on average 1.8888888888888888) internal successors, (136), 130 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:11:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:11:59,016 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:59,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:59,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:11:59,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash -315821759, now seen corresponding path program 1 times [2025-03-17 15:11:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330588561] [2025-03-17 15:11:59,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:59,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:11:59,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:11:59,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:59,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:11:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:59,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330588561] [2025-03-17 15:11:59,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330588561] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:59,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691568938] [2025-03-17 15:11:59,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:59,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:59,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:59,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:59,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:11:59,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:11:59,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:11:59,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:59,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:59,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 15:11:59,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:11:59,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:11:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691568938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:59,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:11:59,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 15:11:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833939645] [2025-03-17 15:11:59,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:59,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:11:59,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:59,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:11:59,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:11:59,192 INFO L87 Difference]: Start difference. First operand has 142 states, 72 states have (on average 1.8888888888888888) internal successors, (136), 130 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:11:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:59,218 INFO L93 Difference]: Finished difference Result 282 states and 314 transitions. [2025-03-17 15:11:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:11:59,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-03-17 15:11:59,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:59,228 INFO L225 Difference]: With dead ends: 282 [2025-03-17 15:11:59,228 INFO L226 Difference]: Without dead ends: 138 [2025-03-17 15:11:59,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:11:59,232 INFO L435 NwaCegarLoop]: 151 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, 151 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:59,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-17 15:11:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2025-03-17 15:11:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 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) [2025-03-17 15:11:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2025-03-17 15:11:59,261 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 14 [2025-03-17 15:11:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:59,261 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2025-03-17 15:11:59,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:11:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2025-03-17 15:11:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:11:59,262 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:59,262 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:59,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:11:59,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 15:11:59,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:11:59,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:59,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2084143967, now seen corresponding path program 1 times [2025-03-17 15:11:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:59,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900014798] [2025-03-17 15:11:59,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:59,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:59,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:11:59,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:11:59,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:59,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:11:59,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:59,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900014798] [2025-03-17 15:11:59,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900014798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:59,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:59,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:11:59,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350105136] [2025-03-17 15:11:59,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:59,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:11:59,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:59,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:11:59,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:11:59,575 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:59,627 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2025-03-17 15:11:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:11:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-03-17 15:11:59,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:59,630 INFO L225 Difference]: With dead ends: 203 [2025-03-17 15:11:59,631 INFO L226 Difference]: Without dead ends: 142 [2025-03-17 15:11:59,632 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 [2025-03-17 15:11:59,632 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 9 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:59,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 414 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-03-17 15:11:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2025-03-17 15:11:59,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 74 states have (on average 1.8108108108108107) internal successors, (134), 131 states have internal predecessors, (134), 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) [2025-03-17 15:11:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2025-03-17 15:11:59,648 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 14 [2025-03-17 15:11:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:59,649 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2025-03-17 15:11:59,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2025-03-17 15:11:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-17 15:11:59,650 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:59,650 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:59,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:11:59,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:11:59,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash -685594659, now seen corresponding path program 1 times [2025-03-17 15:11:59,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:59,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280246927] [2025-03-17 15:11:59,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:59,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:59,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 15:11:59,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 15:11:59,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:59,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:11:59,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540712725] [2025-03-17 15:11:59,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:59,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:59,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:59,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:59,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:11:59,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 15:11:59,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 15:11:59,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:59,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:59,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:11:59,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:11:59,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:11:59,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280246927] [2025-03-17 15:11:59,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:11:59,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540712725] [2025-03-17 15:11:59,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540712725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:59,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:59,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:11:59,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046108507] [2025-03-17 15:11:59,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:59,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:11:59,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:59,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:11:59,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:11:59,768 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:59,963 INFO L93 Difference]: Finished difference Result 226 states and 273 transitions. [2025-03-17 15:11:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:11:59,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-17 15:11:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:59,964 INFO L225 Difference]: With dead ends: 226 [2025-03-17 15:11:59,964 INFO L226 Difference]: Without dead ends: 222 [2025-03-17 15:11:59,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:11:59,965 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 73 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:59,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 167 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:11:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2025-03-17 15:11:59,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 180. [2025-03-17 15:11:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 107 states have (on average 1.8317757009345794) internal successors, (196), 164 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 15:11:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2025-03-17 15:11:59,976 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 17 [2025-03-17 15:11:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:59,976 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2025-03-17 15:11:59,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2025-03-17 15:11:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 15:11:59,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:59,979 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:59,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:00,184 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,SelfDestructingSolverStorable2 [2025-03-17 15:12:00,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:00,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:00,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1726468133, now seen corresponding path program 1 times [2025-03-17 15:12:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:00,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208057181] [2025-03-17 15:12:00,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:00,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 15:12:00,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 15:12:00,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:00,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:00,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237568196] [2025-03-17 15:12:00,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:00,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:00,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:00,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:00,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:12:00,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 15:12:00,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 15:12:00,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:00,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:00,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:12:00,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:00,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:00,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:00,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208057181] [2025-03-17 15:12:00,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:00,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237568196] [2025-03-17 15:12:00,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237568196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:00,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:00,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:00,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49770298] [2025-03-17 15:12:00,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:00,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:00,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:00,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:00,242 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:12:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:00,360 INFO L93 Difference]: Finished difference Result 286 states and 352 transitions. [2025-03-17 15:12:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-17 15:12:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:00,362 INFO L225 Difference]: With dead ends: 286 [2025-03-17 15:12:00,362 INFO L226 Difference]: Without dead ends: 278 [2025-03-17 15:12:00,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:00,362 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 87 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:00,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 204 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:00,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2025-03-17 15:12:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 236. [2025-03-17 15:12:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 157 states have (on average 1.7898089171974523) internal successors, (281), 214 states have internal predecessors, (281), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 15:12:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2025-03-17 15:12:00,382 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 19 [2025-03-17 15:12:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:00,386 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2025-03-17 15:12:00,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:12:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2025-03-17 15:12:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 15:12:00,386 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:00,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:00,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 15:12:00,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:00,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:00,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1278496807, now seen corresponding path program 1 times [2025-03-17 15:12:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:00,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191011493] [2025-03-17 15:12:00,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:00,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:00,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:12:00,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:12:00,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:00,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:00,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223152418] [2025-03-17 15:12:00,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:00,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:00,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:00,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:12:00,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:12:00,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:12:00,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:00,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:00,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:12:00,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:00,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191011493] [2025-03-17 15:12:00,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223152418] [2025-03-17 15:12:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223152418] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:00,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:00,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293138202] [2025-03-17 15:12:00,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:00,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:00,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:00,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:00,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:00,703 INFO L87 Difference]: Start difference. First operand 236 states and 319 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:12:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:00,890 INFO L93 Difference]: Finished difference Result 272 states and 338 transitions. [2025-03-17 15:12:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:00,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2025-03-17 15:12:00,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:00,892 INFO L225 Difference]: With dead ends: 272 [2025-03-17 15:12:00,892 INFO L226 Difference]: Without dead ends: 258 [2025-03-17 15:12:00,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:00,893 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 64 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:00,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 178 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-03-17 15:12:00,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 202. [2025-03-17 15:12:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 128 states have (on average 1.7109375) internal successors, (219), 185 states have internal predecessors, (219), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 15:12:00,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2025-03-17 15:12:00,900 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 21 [2025-03-17 15:12:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:00,900 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2025-03-17 15:12:00,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:12:00,901 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2025-03-17 15:12:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 15:12:00,901 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:00,901 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:12:00,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 15:12:01,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:01,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:01,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:01,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1313075452, now seen corresponding path program 1 times [2025-03-17 15:12:01,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:01,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727241343] [2025-03-17 15:12:01,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:01,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:01,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:12:01,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:12:01,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:01,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59039971] [2025-03-17 15:12:01,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:01,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:01,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:01,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:01,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:12:01,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:12:01,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:12:01,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:01,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:01,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:12:01,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:01,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:01,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727241343] [2025-03-17 15:12:01,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59039971] [2025-03-17 15:12:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59039971] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:01,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:01,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430434898] [2025-03-17 15:12:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:01,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:01,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:01,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:01,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:01,188 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:01,299 INFO L93 Difference]: Finished difference Result 368 states and 471 transitions. [2025-03-17 15:12:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:01,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2025-03-17 15:12:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:01,301 INFO L225 Difference]: With dead ends: 368 [2025-03-17 15:12:01,302 INFO L226 Difference]: Without dead ends: 360 [2025-03-17 15:12:01,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:01,302 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 87 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:01,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 205 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:01,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-17 15:12:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 283. [2025-03-17 15:12:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 200 states have (on average 1.7) internal successors, (340), 257 states have internal predecessors, (340), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 386 transitions. [2025-03-17 15:12:01,318 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 386 transitions. Word has length 28 [2025-03-17 15:12:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:01,318 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 386 transitions. [2025-03-17 15:12:01,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 386 transitions. [2025-03-17 15:12:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:12:01,319 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:01,319 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:12:01,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:01,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:01,520 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:01,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash -854873190, now seen corresponding path program 1 times [2025-03-17 15:12:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:01,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870049266] [2025-03-17 15:12:01,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:01,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:01,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:12:01,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:12:01,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:01,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:01,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954472391] [2025-03-17 15:12:01,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:01,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:01,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:01,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:12:01,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:12:01,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:12:01,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:01,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:01,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:01,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:01,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:01,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870049266] [2025-03-17 15:12:01,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954472391] [2025-03-17 15:12:01,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954472391] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:01,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:01,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:01,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573043825] [2025-03-17 15:12:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:01,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:01,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:01,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:01,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:01,667 INFO L87 Difference]: Start difference. First operand 283 states and 386 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:01,821 INFO L93 Difference]: Finished difference Result 338 states and 451 transitions. [2025-03-17 15:12:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-03-17 15:12:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:01,823 INFO L225 Difference]: With dead ends: 338 [2025-03-17 15:12:01,823 INFO L226 Difference]: Without dead ends: 336 [2025-03-17 15:12:01,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:01,823 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 232 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:01,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-03-17 15:12:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 283. [2025-03-17 15:12:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 200 states have (on average 1.68) internal successors, (336), 257 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 382 transitions. [2025-03-17 15:12:01,833 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 382 transitions. Word has length 30 [2025-03-17 15:12:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:01,833 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 382 transitions. [2025-03-17 15:12:01,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 382 transitions. [2025-03-17 15:12:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-17 15:12:01,834 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:01,834 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:12:01,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:02,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:02,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:02,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:02,038 INFO L85 PathProgramCache]: Analyzing trace with hash -731265041, now seen corresponding path program 1 times [2025-03-17 15:12:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:02,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272433388] [2025-03-17 15:12:02,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:02,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:02,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:12:02,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:12:02,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:02,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:02,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370231714] [2025-03-17 15:12:02,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:02,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:02,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:02,050 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) [2025-03-17 15:12:02,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:12:02,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:12:02,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:12:02,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:02,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:02,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:02,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:02,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:02,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272433388] [2025-03-17 15:12:02,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370231714] [2025-03-17 15:12:02,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370231714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:02,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:02,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:02,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241115075] [2025-03-17 15:12:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:02,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:02,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:02,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:02,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:02,136 INFO L87 Difference]: Start difference. First operand 283 states and 382 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:02,343 INFO L93 Difference]: Finished difference Result 338 states and 447 transitions. [2025-03-17 15:12:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2025-03-17 15:12:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:02,345 INFO L225 Difference]: With dead ends: 338 [2025-03-17 15:12:02,345 INFO L226 Difference]: Without dead ends: 336 [2025-03-17 15:12:02,345 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 [2025-03-17 15:12:02,346 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 179 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:02,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 164 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-03-17 15:12:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 283. [2025-03-17 15:12:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 200 states have (on average 1.66) internal successors, (332), 257 states have internal predecessors, (332), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2025-03-17 15:12:02,370 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 31 [2025-03-17 15:12:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:02,370 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2025-03-17 15:12:02,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2025-03-17 15:12:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:12:02,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:02,372 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:12:02,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 15:12:02,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:02,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:02,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1194379720, now seen corresponding path program 1 times [2025-03-17 15:12:02,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:02,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043619381] [2025-03-17 15:12:02,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:02,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:02,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:12:02,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:12:02,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:02,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:02,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847049838] [2025-03-17 15:12:02,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:02,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:02,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:02,598 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) [2025-03-17 15:12:02,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:12:02,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:12:02,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:12:02,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:02,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:02,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:02,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:02,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:02,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:02,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043619381] [2025-03-17 15:12:02,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:02,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847049838] [2025-03-17 15:12:02,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847049838] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:02,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:02,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033313860] [2025-03-17 15:12:02,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:02,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:02,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:02,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:02,660 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:02,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:02,892 INFO L93 Difference]: Finished difference Result 358 states and 451 transitions. [2025-03-17 15:12:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:02,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2025-03-17 15:12:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:02,894 INFO L225 Difference]: With dead ends: 358 [2025-03-17 15:12:02,894 INFO L226 Difference]: Without dead ends: 356 [2025-03-17 15:12:02,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:02,895 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 150 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:02,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 182 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-03-17 15:12:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 284. [2025-03-17 15:12:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.6417910447761195) internal successors, (330), 258 states have internal predecessors, (330), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 376 transitions. [2025-03-17 15:12:02,906 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 376 transitions. Word has length 32 [2025-03-17 15:12:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:02,906 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 376 transitions. [2025-03-17 15:12:02,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 376 transitions. [2025-03-17 15:12:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 15:12:02,908 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:02,908 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:12:02,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:03,108 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,SelfDestructingSolverStorable8 [2025-03-17 15:12:03,109 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:03,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:03,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1628934413, now seen corresponding path program 1 times [2025-03-17 15:12:03,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:03,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961845936] [2025-03-17 15:12:03,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:03,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:03,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:12:03,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:12:03,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:03,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:03,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634864401] [2025-03-17 15:12:03,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:03,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:03,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:03,125 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) [2025-03-17 15:12:03,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:12:03,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:12:03,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:12:03,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:03,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:03,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:03,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:12:03,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:03,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961845936] [2025-03-17 15:12:03,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634864401] [2025-03-17 15:12:03,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634864401] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:03,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:03,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:03,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902711007] [2025-03-17 15:12:03,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:03,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:03,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:03,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:03,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:03,230 INFO L87 Difference]: Start difference. First operand 284 states and 376 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:03,659 INFO L93 Difference]: Finished difference Result 358 states and 447 transitions. [2025-03-17 15:12:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2025-03-17 15:12:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:03,661 INFO L225 Difference]: With dead ends: 358 [2025-03-17 15:12:03,661 INFO L226 Difference]: Without dead ends: 356 [2025-03-17 15:12:03,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:03,661 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 149 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:03,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 210 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-03-17 15:12:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 285. [2025-03-17 15:12:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 202 states have (on average 1.6237623762376239) internal successors, (328), 259 states have internal predecessors, (328), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 374 transitions. [2025-03-17 15:12:03,670 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 374 transitions. Word has length 33 [2025-03-17 15:12:03,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:03,670 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 374 transitions. [2025-03-17 15:12:03,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:12:03,670 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 374 transitions. [2025-03-17 15:12:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 15:12:03,672 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:03,673 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:03,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:03,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-17 15:12:03,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:03,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2091042853, now seen corresponding path program 1 times [2025-03-17 15:12:03,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:03,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276453839] [2025-03-17 15:12:03,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:03,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:12:03,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:12:03,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:03,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:03,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752037267] [2025-03-17 15:12:03,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:03,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:03,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:03,886 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) [2025-03-17 15:12:03,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:12:03,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:12:03,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:12:03,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:03,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:03,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:03,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:12:03,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:03,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276453839] [2025-03-17 15:12:03,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:03,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752037267] [2025-03-17 15:12:03,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752037267] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:03,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:03,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:03,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908335959] [2025-03-17 15:12:03,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:03,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:03,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:03,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:03,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:03,980 INFO L87 Difference]: Start difference. First operand 285 states and 374 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:12:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:04,117 INFO L93 Difference]: Finished difference Result 309 states and 393 transitions. [2025-03-17 15:12:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:04,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2025-03-17 15:12:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:04,119 INFO L225 Difference]: With dead ends: 309 [2025-03-17 15:12:04,119 INFO L226 Difference]: Without dead ends: 307 [2025-03-17 15:12:04,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:04,119 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 221 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:04,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 157 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2025-03-17 15:12:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 286. [2025-03-17 15:12:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 203 states have (on average 1.6108374384236452) internal successors, (327), 260 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 373 transitions. [2025-03-17 15:12:04,131 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 373 transitions. Word has length 41 [2025-03-17 15:12:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:04,132 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 373 transitions. [2025-03-17 15:12:04,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:12:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 373 transitions. [2025-03-17 15:12:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:12:04,132 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:04,133 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:04,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 15:12:04,333 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,SelfDestructingSolverStorable10 [2025-03-17 15:12:04,333 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:04,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash 397819063, now seen corresponding path program 1 times [2025-03-17 15:12:04,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:04,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931061741] [2025-03-17 15:12:04,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:04,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:04,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:12:04,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:12:04,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:04,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:04,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943476729] [2025-03-17 15:12:04,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:04,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:04,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:04,346 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) [2025-03-17 15:12:04,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:12:04,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:12:04,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:12:04,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:04,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:04,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:04,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:12:04,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:04,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931061741] [2025-03-17 15:12:04,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:04,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943476729] [2025-03-17 15:12:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943476729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:04,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:04,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:04,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111950466] [2025-03-17 15:12:04,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:04,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:04,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:04,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:04,448 INFO L87 Difference]: Start difference. First operand 286 states and 373 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2025-03-17 15:12:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:04,597 INFO L93 Difference]: Finished difference Result 309 states and 390 transitions. [2025-03-17 15:12:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 42 [2025-03-17 15:12:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:04,599 INFO L225 Difference]: With dead ends: 309 [2025-03-17 15:12:04,599 INFO L226 Difference]: Without dead ends: 307 [2025-03-17 15:12:04,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:04,600 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 204 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:04,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 171 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:04,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2025-03-17 15:12:04,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 287. [2025-03-17 15:12:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 204 states have (on average 1.5980392156862746) internal successors, (326), 261 states have internal predecessors, (326), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:04,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 372 transitions. [2025-03-17 15:12:04,608 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 372 transitions. Word has length 42 [2025-03-17 15:12:04,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:04,608 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 372 transitions. [2025-03-17 15:12:04,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2025-03-17 15:12:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 372 transitions. [2025-03-17 15:12:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:12:04,611 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:04,612 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:04,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:04,815 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,SelfDestructingSolverStorable11 [2025-03-17 15:12:04,815 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:04,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash -552510877, now seen corresponding path program 1 times [2025-03-17 15:12:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:04,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087879086] [2025-03-17 15:12:04,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:04,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:12:04,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:12:04,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:04,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061828925] [2025-03-17 15:12:04,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:04,830 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) [2025-03-17 15:12:04,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 15:12:04,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:12:04,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:12:04,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:04,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:04,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:04,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:12:04,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:04,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:04,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087879086] [2025-03-17 15:12:04,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:04,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061828925] [2025-03-17 15:12:04,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061828925] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:04,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:04,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:04,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917068490] [2025-03-17 15:12:04,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:04,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:04,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:04,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:04,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:04,897 INFO L87 Difference]: Start difference. First operand 287 states and 372 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2025-03-17 15:12:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:05,158 INFO L93 Difference]: Finished difference Result 317 states and 379 transitions. [2025-03-17 15:12:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:05,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 43 [2025-03-17 15:12:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:05,173 INFO L225 Difference]: With dead ends: 317 [2025-03-17 15:12:05,173 INFO L226 Difference]: Without dead ends: 315 [2025-03-17 15:12:05,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:05,173 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 83 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:05,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 256 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:05,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-03-17 15:12:05,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 288. [2025-03-17 15:12:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 205 states have (on average 1.5853658536585367) internal successors, (325), 262 states have internal predecessors, (325), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 371 transitions. [2025-03-17 15:12:05,182 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 371 transitions. Word has length 43 [2025-03-17 15:12:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:05,182 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 371 transitions. [2025-03-17 15:12:05,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2025-03-17 15:12:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 371 transitions. [2025-03-17 15:12:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 15:12:05,183 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:05,183 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:05,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 15:12:05,387 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,SelfDestructingSolverStorable12 [2025-03-17 15:12:05,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:05,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash 52032053, now seen corresponding path program 1 times [2025-03-17 15:12:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:05,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180202597] [2025-03-17 15:12:05,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:05,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:05,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:12:05,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:12:05,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:05,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:05,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271464263] [2025-03-17 15:12:05,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:05,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:05,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:05,401 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) [2025-03-17 15:12:05,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 15:12:05,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:12:05,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:12:05,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:05,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:05,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:05,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:12:05,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:05,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180202597] [2025-03-17 15:12:05,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:05,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271464263] [2025-03-17 15:12:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271464263] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:05,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131392171] [2025-03-17 15:12:05,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:05,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:05,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:05,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:05,497 INFO L87 Difference]: Start difference. First operand 288 states and 371 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2025-03-17 15:12:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:05,965 INFO L93 Difference]: Finished difference Result 317 states and 376 transitions. [2025-03-17 15:12:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 44 [2025-03-17 15:12:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:05,967 INFO L225 Difference]: With dead ends: 317 [2025-03-17 15:12:05,968 INFO L226 Difference]: Without dead ends: 315 [2025-03-17 15:12:05,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:05,968 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 83 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:05,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 285 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:05,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-03-17 15:12:05,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 289. [2025-03-17 15:12:05,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 206 states have (on average 1.5728155339805825) internal successors, (324), 263 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 370 transitions. [2025-03-17 15:12:05,980 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 370 transitions. Word has length 44 [2025-03-17 15:12:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:05,980 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 370 transitions. [2025-03-17 15:12:05,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2025-03-17 15:12:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 370 transitions. [2025-03-17 15:12:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-17 15:12:05,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:05,981 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, 1] [2025-03-17 15:12:05,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 15:12:06,182 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,SelfDestructingSolverStorable13 [2025-03-17 15:12:06,182 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:06,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1901977261, now seen corresponding path program 1 times [2025-03-17 15:12:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:06,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142553604] [2025-03-17 15:12:06,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:06,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 15:12:06,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 15:12:06,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:06,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:06,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:06,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142553604] [2025-03-17 15:12:06,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142553604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:06,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:06,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:06,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180260049] [2025-03-17 15:12:06,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:06,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:06,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:06,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:06,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:06,239 INFO L87 Difference]: Start difference. First operand 289 states and 370 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:12:06,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:06,280 INFO L93 Difference]: Finished difference Result 380 states and 487 transitions. [2025-03-17 15:12:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:06,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2025-03-17 15:12:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:06,282 INFO L225 Difference]: With dead ends: 380 [2025-03-17 15:12:06,283 INFO L226 Difference]: Without dead ends: 378 [2025-03-17 15:12:06,284 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 [2025-03-17 15:12:06,284 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 46 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:06,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 297 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:12:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-03-17 15:12:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 291. [2025-03-17 15:12:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 265 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 370 transitions. [2025-03-17 15:12:06,294 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 370 transitions. Word has length 51 [2025-03-17 15:12:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:06,294 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 370 transitions. [2025-03-17 15:12:06,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:12:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 370 transitions. [2025-03-17 15:12:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-17 15:12:06,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:06,295 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, 1, 1] [2025-03-17 15:12:06,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 15:12:06,296 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:06,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1168247076, now seen corresponding path program 1 times [2025-03-17 15:12:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233597051] [2025-03-17 15:12:06,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:06,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:12:06,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:12:06,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:06,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:06,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233597051] [2025-03-17 15:12:06,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233597051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:06,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:06,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244725857] [2025-03-17 15:12:06,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:06,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:06,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:06,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:06,344 INFO L87 Difference]: Start difference. First operand 291 states and 370 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:12:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:06,380 INFO L93 Difference]: Finished difference Result 379 states and 481 transitions. [2025-03-17 15:12:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:06,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2025-03-17 15:12:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:06,382 INFO L225 Difference]: With dead ends: 379 [2025-03-17 15:12:06,382 INFO L226 Difference]: Without dead ends: 377 [2025-03-17 15:12:06,382 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 [2025-03-17 15:12:06,383 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 45 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:06,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 307 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:12:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-03-17 15:12:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 293. [2025-03-17 15:12:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 212 states have (on average 1.5188679245283019) internal successors, (322), 267 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2025-03-17 15:12:06,411 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 52 [2025-03-17 15:12:06,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:06,412 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2025-03-17 15:12:06,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:12:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2025-03-17 15:12:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 15:12:06,412 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:06,412 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, 1, 1, 1] [2025-03-17 15:12:06,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 15:12:06,412 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:06,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1855976234, now seen corresponding path program 1 times [2025-03-17 15:12:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383376817] [2025-03-17 15:12:06,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:06,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 15:12:06,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 15:12:06,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:06,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:06,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:06,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383376817] [2025-03-17 15:12:06,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383376817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:06,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:06,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314894080] [2025-03-17 15:12:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:06,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:06,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:06,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:06,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:06,485 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:06,699 INFO L93 Difference]: Finished difference Result 380 states and 476 transitions. [2025-03-17 15:12:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:12:06,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2025-03-17 15:12:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:06,701 INFO L225 Difference]: With dead ends: 380 [2025-03-17 15:12:06,701 INFO L226 Difference]: Without dead ends: 379 [2025-03-17 15:12:06,701 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 [2025-03-17 15:12:06,702 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 194 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:06,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 172 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-03-17 15:12:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 295. [2025-03-17 15:12:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 214 states have (on average 1.514018691588785) internal successors, (324), 269 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:06,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 370 transitions. [2025-03-17 15:12:06,712 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 370 transitions. Word has length 53 [2025-03-17 15:12:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:06,712 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 370 transitions. [2025-03-17 15:12:06,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 370 transitions. [2025-03-17 15:12:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 15:12:06,713 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:06,713 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, 1, 1, 1] [2025-03-17 15:12:06,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 15:12:06,713 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:06,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:06,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1855977579, now seen corresponding path program 1 times [2025-03-17 15:12:06,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:06,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467948659] [2025-03-17 15:12:06,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:06,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 15:12:06,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 15:12:06,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:06,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:06,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:06,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467948659] [2025-03-17 15:12:06,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467948659] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:06,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:06,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:06,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71990839] [2025-03-17 15:12:06,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:06,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:06,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:06,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:06,774 INFO L87 Difference]: Start difference. First operand 295 states and 370 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:06,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:06,998 INFO L93 Difference]: Finished difference Result 380 states and 475 transitions. [2025-03-17 15:12:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:12:06,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2025-03-17 15:12:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:06,999 INFO L225 Difference]: With dead ends: 380 [2025-03-17 15:12:06,999 INFO L226 Difference]: Without dead ends: 379 [2025-03-17 15:12:07,000 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 [2025-03-17 15:12:07,000 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 179 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:07,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 177 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-03-17 15:12:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 295. [2025-03-17 15:12:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 214 states have (on average 1.5093457943925233) internal successors, (323), 269 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 369 transitions. [2025-03-17 15:12:07,010 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 369 transitions. Word has length 53 [2025-03-17 15:12:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:07,010 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 369 transitions. [2025-03-17 15:12:07,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 369 transitions. [2025-03-17 15:12:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-17 15:12:07,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:07,011 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:07,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 15:12:07,011 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:07,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2020948907, now seen corresponding path program 1 times [2025-03-17 15:12:07,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:07,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805559311] [2025-03-17 15:12:07,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:07,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:07,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 15:12:07,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 15:12:07,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:07,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805559311] [2025-03-17 15:12:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805559311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:12:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151917447] [2025-03-17 15:12:07,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:07,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:07,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:07,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:12:07,062 INFO L87 Difference]: Start difference. First operand 295 states and 369 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:07,188 INFO L93 Difference]: Finished difference Result 356 states and 437 transitions. [2025-03-17 15:12:07,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:07,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2025-03-17 15:12:07,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:07,189 INFO L225 Difference]: With dead ends: 356 [2025-03-17 15:12:07,189 INFO L226 Difference]: Without dead ends: 352 [2025-03-17 15:12:07,190 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 [2025-03-17 15:12:07,190 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:07,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 170 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-03-17 15:12:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 305. [2025-03-17 15:12:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 224 states have (on average 1.4910714285714286) internal successors, (334), 279 states have internal predecessors, (334), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 380 transitions. [2025-03-17 15:12:07,201 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 380 transitions. Word has length 56 [2025-03-17 15:12:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:07,201 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 380 transitions. [2025-03-17 15:12:07,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 380 transitions. [2025-03-17 15:12:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-17 15:12:07,202 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:07,202 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:07,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 15:12:07,202 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:07,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash 762696036, now seen corresponding path program 1 times [2025-03-17 15:12:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:07,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620308128] [2025-03-17 15:12:07,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:07,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:07,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 15:12:07,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 15:12:07,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:07,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:07,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620308128] [2025-03-17 15:12:07,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620308128] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158134077] [2025-03-17 15:12:07,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:07,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:07,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:07,270 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) [2025-03-17 15:12:07,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 15:12:07,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 15:12:07,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 15:12:07,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:07,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:07,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:07,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:07,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158134077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:07,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:12:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741168208] [2025-03-17 15:12:07,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:07,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:12:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:07,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:12:07,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:07,396 INFO L87 Difference]: Start difference. First operand 305 states and 380 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:07,419 INFO L93 Difference]: Finished difference Result 305 states and 380 transitions. [2025-03-17 15:12:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:07,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2025-03-17 15:12:07,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:07,420 INFO L225 Difference]: With dead ends: 305 [2025-03-17 15:12:07,420 INFO L226 Difference]: Without dead ends: 304 [2025-03-17 15:12:07,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:07,421 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 108 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 273 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 [2025-03-17 15:12:07,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 273 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:12:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2025-03-17 15:12:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2025-03-17 15:12:07,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 224 states have (on average 1.4776785714285714) internal successors, (331), 278 states have internal predecessors, (331), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:12:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 377 transitions. [2025-03-17 15:12:07,437 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 377 transitions. Word has length 59 [2025-03-17 15:12:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:07,437 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 377 transitions. [2025-03-17 15:12:07,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 377 transitions. [2025-03-17 15:12:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-17 15:12:07,437 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:07,438 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:07,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 15:12:07,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:07,638 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:07,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:07,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2126226564, now seen corresponding path program 1 times [2025-03-17 15:12:07,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:07,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461263969] [2025-03-17 15:12:07,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:07,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:07,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 15:12:07,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 15:12:07,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:07,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:07,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461263969] [2025-03-17 15:12:07,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461263969] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169463738] [2025-03-17 15:12:07,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:07,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:07,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:07,703 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) [2025-03-17 15:12:07,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 15:12:07,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 15:12:07,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 15:12:07,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:07,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:07,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:07,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:07,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:07,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169463738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:07,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:12:07,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99009243] [2025-03-17 15:12:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:07,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:12:07,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:07,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:12:07,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:07,799 INFO L87 Difference]: Start difference. First operand 304 states and 377 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:07,848 INFO L93 Difference]: Finished difference Result 396 states and 485 transitions. [2025-03-17 15:12:07,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:12:07,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2025-03-17 15:12:07,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:07,849 INFO L225 Difference]: With dead ends: 396 [2025-03-17 15:12:07,850 INFO L226 Difference]: Without dead ends: 395 [2025-03-17 15:12:07,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:07,850 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 103 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:07,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 609 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:12:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2025-03-17 15:12:07,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 357. [2025-03-17 15:12:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 269 states have (on average 1.483271375464684) internal successors, (399), 324 states have internal predecessors, (399), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-17 15:12:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 461 transitions. [2025-03-17 15:12:07,875 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 461 transitions. Word has length 60 [2025-03-17 15:12:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:07,875 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 461 transitions. [2025-03-17 15:12:07,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 461 transitions. [2025-03-17 15:12:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-17 15:12:07,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:07,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:07,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 15:12:08,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:08,077 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:08,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1100707862, now seen corresponding path program 1 times [2025-03-17 15:12:08,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:08,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702132456] [2025-03-17 15:12:08,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:08,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:08,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-17 15:12:08,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 15:12:08,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:08,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:08,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702132456] [2025-03-17 15:12:08,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702132456] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756972336] [2025-03-17 15:12:08,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:08,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:08,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:08,158 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) [2025-03-17 15:12:08,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 15:12:08,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-17 15:12:08,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 15:12:08,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:08,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:08,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:12:08,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:08,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:08,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756972336] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:08,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:08,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2025-03-17 15:12:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021945378] [2025-03-17 15:12:08,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:08,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:12:08,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:08,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:12:08,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:12:08,328 INFO L87 Difference]: Start difference. First operand 357 states and 461 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:12:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:08,487 INFO L93 Difference]: Finished difference Result 926 states and 1133 transitions. [2025-03-17 15:12:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:12:08,488 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 62 [2025-03-17 15:12:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:08,491 INFO L225 Difference]: With dead ends: 926 [2025-03-17 15:12:08,491 INFO L226 Difference]: Without dead ends: 826 [2025-03-17 15:12:08,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:12:08,493 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 321 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:08,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 991 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:08,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2025-03-17 15:12:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 686. [2025-03-17 15:12:08,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 564 states have (on average 1.4716312056737588) internal successors, (830), 624 states have internal predecessors, (830), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 954 transitions. [2025-03-17 15:12:08,527 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 954 transitions. Word has length 62 [2025-03-17 15:12:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:08,527 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 954 transitions. [2025-03-17 15:12:08,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:12:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 954 transitions. [2025-03-17 15:12:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-17 15:12:08,528 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:08,528 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:08,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:08,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-17 15:12:08,732 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:08,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:08,732 INFO L85 PathProgramCache]: Analyzing trace with hash 410978585, now seen corresponding path program 1 times [2025-03-17 15:12:08,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:08,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174776225] [2025-03-17 15:12:08,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:08,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-17 15:12:08,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 15:12:08,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:08,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:08,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491385738] [2025-03-17 15:12:08,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:08,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:08,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:08,748 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) [2025-03-17 15:12:08,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 15:12:08,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-17 15:12:08,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 15:12:08,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:08,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:08,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:08,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:08,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:09,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174776225] [2025-03-17 15:12:09,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491385738] [2025-03-17 15:12:09,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491385738] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:09,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:09,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-17 15:12:09,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898612619] [2025-03-17 15:12:09,045 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:09,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:09,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:09,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:09,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:09,046 INFO L87 Difference]: Start difference. First operand 686 states and 954 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:09,230 INFO L93 Difference]: Finished difference Result 731 states and 1017 transitions. [2025-03-17 15:12:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:09,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2025-03-17 15:12:09,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:09,233 INFO L225 Difference]: With dead ends: 731 [2025-03-17 15:12:09,233 INFO L226 Difference]: Without dead ends: 729 [2025-03-17 15:12:09,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:09,233 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 78 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:09,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 145 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2025-03-17 15:12:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 689. [2025-03-17 15:12:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 567 states have (on average 1.4620811287477955) internal successors, (829), 627 states have internal predecessors, (829), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 953 transitions. [2025-03-17 15:12:09,262 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 953 transitions. Word has length 62 [2025-03-17 15:12:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:09,262 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 953 transitions. [2025-03-17 15:12:09,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 953 transitions. [2025-03-17 15:12:09,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 15:12:09,263 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:09,263 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:09,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-17 15:12:09,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:09,467 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:09,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash 230273618, now seen corresponding path program 1 times [2025-03-17 15:12:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:09,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561986421] [2025-03-17 15:12:09,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:09,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:09,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:12:09,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:12:09,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:09,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 15:12:09,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:09,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561986421] [2025-03-17 15:12:09,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561986421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154154181] [2025-03-17 15:12:09,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:09,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:09,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:09,564 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) [2025-03-17 15:12:09,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 15:12:09,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 15:12:09,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:12:09,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:09,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:09,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:12:09,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 15:12:09,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:09,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154154181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:09,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:09,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-17 15:12:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513629401] [2025-03-17 15:12:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:09,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:09,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:09,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:09,779 INFO L87 Difference]: Start difference. First operand 689 states and 953 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:10,102 INFO L93 Difference]: Finished difference Result 736 states and 1025 transitions. [2025-03-17 15:12:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:12:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2025-03-17 15:12:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:10,105 INFO L225 Difference]: With dead ends: 736 [2025-03-17 15:12:10,105 INFO L226 Difference]: Without dead ends: 735 [2025-03-17 15:12:10,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:10,106 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:10,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 137 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2025-03-17 15:12:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 689. [2025-03-17 15:12:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 567 states have (on average 1.4550264550264551) internal successors, (825), 627 states have internal predecessors, (825), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 949 transitions. [2025-03-17 15:12:10,136 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 949 transitions. Word has length 64 [2025-03-17 15:12:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:10,136 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 949 transitions. [2025-03-17 15:12:10,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 949 transitions. [2025-03-17 15:12:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 15:12:10,136 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:10,137 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:10,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:10,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:10,337 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:10,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash -144565663, now seen corresponding path program 1 times [2025-03-17 15:12:10,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:10,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615394200] [2025-03-17 15:12:10,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:10,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:10,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 15:12:10,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:12:10,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:10,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:10,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890890127] [2025-03-17 15:12:10,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:10,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:10,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:10,349 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) [2025-03-17 15:12:10,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 15:12:10,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 15:12:10,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:12:10,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:10,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:10,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:10,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:12:10,532 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:10,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615394200] [2025-03-17 15:12:10,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890890127] [2025-03-17 15:12:10,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890890127] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:10,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:10,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-17 15:12:10,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120383537] [2025-03-17 15:12:10,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:10,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:10,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:10,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:10,713 INFO L87 Difference]: Start difference. First operand 689 states and 949 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:10,994 INFO L93 Difference]: Finished difference Result 731 states and 1006 transitions. [2025-03-17 15:12:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:10,995 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2025-03-17 15:12:10,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:10,999 INFO L225 Difference]: With dead ends: 731 [2025-03-17 15:12:10,999 INFO L226 Difference]: Without dead ends: 729 [2025-03-17 15:12:11,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:11,000 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 39 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:11,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 197 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2025-03-17 15:12:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 692. [2025-03-17 15:12:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 570 states have (on average 1.4456140350877194) internal successors, (824), 630 states have internal predecessors, (824), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 948 transitions. [2025-03-17 15:12:11,040 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 948 transitions. Word has length 63 [2025-03-17 15:12:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:11,041 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 948 transitions. [2025-03-17 15:12:11,042 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 948 transitions. [2025-03-17 15:12:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 15:12:11,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:11,042 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:11,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:11,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:11,243 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:11,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1451452428, now seen corresponding path program 1 times [2025-03-17 15:12:11,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:11,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16500939] [2025-03-17 15:12:11,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:11,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:11,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 15:12:11,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 15:12:11,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:11,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:11,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:11,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16500939] [2025-03-17 15:12:11,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16500939] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:11,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293911126] [2025-03-17 15:12:11,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:11,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:11,348 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) [2025-03-17 15:12:11,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 15:12:11,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 15:12:11,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 15:12:11,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:11,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:11,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:12:11,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 15:12:11,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:11,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293911126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:11,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:11,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2025-03-17 15:12:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705492690] [2025-03-17 15:12:11,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:11,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:11,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:11,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:11,545 INFO L87 Difference]: Start difference. First operand 692 states and 948 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:11,877 INFO L93 Difference]: Finished difference Result 736 states and 1014 transitions. [2025-03-17 15:12:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2025-03-17 15:12:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:11,880 INFO L225 Difference]: With dead ends: 736 [2025-03-17 15:12:11,880 INFO L226 Difference]: Without dead ends: 735 [2025-03-17 15:12:11,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:11,880 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 87 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:11,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 146 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:11,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2025-03-17 15:12:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 692. [2025-03-17 15:12:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 570 states have (on average 1.4385964912280702) internal successors, (820), 630 states have internal predecessors, (820), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 944 transitions. [2025-03-17 15:12:11,905 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 944 transitions. Word has length 65 [2025-03-17 15:12:11,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:11,906 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 944 transitions. [2025-03-17 15:12:11,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 944 transitions. [2025-03-17 15:12:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 15:12:11,906 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:11,906 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:11,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:12,107 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,SelfDestructingSolverStorable25 [2025-03-17 15:12:12,107 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:12,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1096618773, now seen corresponding path program 1 times [2025-03-17 15:12:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:12,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182472863] [2025-03-17 15:12:12,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:12,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:12,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 15:12:12,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 15:12:12,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:12,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:12,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240100179] [2025-03-17 15:12:12,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:12,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:12,119 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) [2025-03-17 15:12:12,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 15:12:12,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 15:12:12,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 15:12:12,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:12,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:12,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:12,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 15:12:12,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:12,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:12,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182472863] [2025-03-17 15:12:12,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:12,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240100179] [2025-03-17 15:12:12,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240100179] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:12,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:12,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:12,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241121176] [2025-03-17 15:12:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:12,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:12,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:12,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:12,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:12,201 INFO L87 Difference]: Start difference. First operand 692 states and 944 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:12,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:12,407 INFO L93 Difference]: Finished difference Result 744 states and 995 transitions. [2025-03-17 15:12:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:12,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2025-03-17 15:12:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:12,410 INFO L225 Difference]: With dead ends: 744 [2025-03-17 15:12:12,410 INFO L226 Difference]: Without dead ends: 743 [2025-03-17 15:12:12,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:12,410 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 119 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:12,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 173 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:12,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2025-03-17 15:12:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 692. [2025-03-17 15:12:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 570 states have (on average 1.4333333333333333) internal successors, (817), 630 states have internal predecessors, (817), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 941 transitions. [2025-03-17 15:12:12,435 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 941 transitions. Word has length 66 [2025-03-17 15:12:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:12,436 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 941 transitions. [2025-03-17 15:12:12,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 941 transitions. [2025-03-17 15:12:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 15:12:12,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:12,436 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:12,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-17 15:12:12,637 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,SelfDestructingSolverStorable26 [2025-03-17 15:12:12,637 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:12,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash -364556323, now seen corresponding path program 1 times [2025-03-17 15:12:12,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495572476] [2025-03-17 15:12:12,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:12,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:12:12,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:12:12,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:12,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:12,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97999643] [2025-03-17 15:12:12,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:12,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:12,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:12,652 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) [2025-03-17 15:12:12,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 15:12:12,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:12:12,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:12:12,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:12,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:12,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:12,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 15:12:12,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:12,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:12,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495572476] [2025-03-17 15:12:12,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:12,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97999643] [2025-03-17 15:12:12,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97999643] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:12,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:12,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:12:12,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788371462] [2025-03-17 15:12:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:12,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:12:12,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:12,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:12:12,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:12,806 INFO L87 Difference]: Start difference. First operand 692 states and 941 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:13,361 INFO L93 Difference]: Finished difference Result 746 states and 992 transitions. [2025-03-17 15:12:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:12:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2025-03-17 15:12:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:13,364 INFO L225 Difference]: With dead ends: 746 [2025-03-17 15:12:13,364 INFO L226 Difference]: Without dead ends: 743 [2025-03-17 15:12:13,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:12:13,364 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 80 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:13,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 225 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2025-03-17 15:12:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 701. [2025-03-17 15:12:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 579 states have (on average 1.4231433506044906) internal successors, (824), 639 states have internal predecessors, (824), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-17 15:12:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 948 transitions. [2025-03-17 15:12:13,390 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 948 transitions. Word has length 67 [2025-03-17 15:12:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:13,391 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 948 transitions. [2025-03-17 15:12:13,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 948 transitions. [2025-03-17 15:12:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-17 15:12:13,391 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:13,391 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:13,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-17 15:12:13,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-17 15:12:13,596 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:13,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1253192831, now seen corresponding path program 1 times [2025-03-17 15:12:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873462272] [2025-03-17 15:12:13,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:13,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 15:12:13,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 15:12:13,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:13,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056408973] [2025-03-17 15:12:13,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:13,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:13,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:13,608 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) [2025-03-17 15:12:13,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 15:12:13,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 15:12:13,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 15:12:13,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:13,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:13,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:13,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:13,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:13,882 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:14,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:14,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873462272] [2025-03-17 15:12:14,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:14,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056408973] [2025-03-17 15:12:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056408973] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:14,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:14,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833993486] [2025-03-17 15:12:14,823 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:14,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:14,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:14,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:14,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:14,823 INFO L87 Difference]: Start difference. First operand 701 states and 948 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:15,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:15,109 INFO L93 Difference]: Finished difference Result 858 states and 1165 transitions. [2025-03-17 15:12:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:15,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2025-03-17 15:12:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:15,112 INFO L225 Difference]: With dead ends: 858 [2025-03-17 15:12:15,112 INFO L226 Difference]: Without dead ends: 854 [2025-03-17 15:12:15,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:15,113 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 389 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:15,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 338 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2025-03-17 15:12:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 762. [2025-03-17 15:12:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 632 states have (on average 1.4382911392405062) internal successors, (909), 694 states have internal predecessors, (909), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-17 15:12:15,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1049 transitions. [2025-03-17 15:12:15,144 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1049 transitions. Word has length 73 [2025-03-17 15:12:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:15,144 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1049 transitions. [2025-03-17 15:12:15,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:15,144 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1049 transitions. [2025-03-17 15:12:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 15:12:15,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:15,145 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:15,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:15,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:15,346 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:15,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 194272174, now seen corresponding path program 1 times [2025-03-17 15:12:15,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515771532] [2025-03-17 15:12:15,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:15,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:12:15,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:12:15,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:15,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:15,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514974161] [2025-03-17 15:12:15,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:15,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:15,358 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) [2025-03-17 15:12:15,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 15:12:15,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:12:15,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:12:15,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:15,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:15,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:15,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:15,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515771532] [2025-03-17 15:12:17,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514974161] [2025-03-17 15:12:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514974161] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:17,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529672173] [2025-03-17 15:12:17,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:17,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:17,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:17,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:17,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2025-03-17 15:12:17,188 INFO L87 Difference]: Start difference. First operand 762 states and 1049 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:17,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:17,518 INFO L93 Difference]: Finished difference Result 784 states and 1062 transitions. [2025-03-17 15:12:17,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:17,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2025-03-17 15:12:17,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:17,521 INFO L225 Difference]: With dead ends: 784 [2025-03-17 15:12:17,521 INFO L226 Difference]: Without dead ends: 778 [2025-03-17 15:12:17,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2025-03-17 15:12:17,521 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 184 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:17,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 416 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2025-03-17 15:12:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 756. [2025-03-17 15:12:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 632 states have (on average 1.389240506329114) internal successors, (878), 688 states have internal predecessors, (878), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-17 15:12:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1018 transitions. [2025-03-17 15:12:17,557 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1018 transitions. Word has length 74 [2025-03-17 15:12:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:17,558 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1018 transitions. [2025-03-17 15:12:17,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:17,558 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1018 transitions. [2025-03-17 15:12:17,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 15:12:17,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:17,558 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:17,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-17 15:12:17,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:17,763 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:17,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:17,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1727470173, now seen corresponding path program 1 times [2025-03-17 15:12:17,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:17,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610513116] [2025-03-17 15:12:17,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:17,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:17,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 15:12:17,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 15:12:17,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:17,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:17,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198422789] [2025-03-17 15:12:17,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:17,776 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) [2025-03-17 15:12:17,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-17 15:12:17,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 15:12:17,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 15:12:17,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:17,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:17,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:17,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:18,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:18,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610513116] [2025-03-17 15:12:18,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198422789] [2025-03-17 15:12:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198422789] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:18,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:18,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:18,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916121710] [2025-03-17 15:12:18,117 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:18,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:18,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:18,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:18,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:18,118 INFO L87 Difference]: Start difference. First operand 756 states and 1018 transitions. Second operand has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:18,281 INFO L93 Difference]: Finished difference Result 756 states and 1018 transitions. [2025-03-17 15:12:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:18,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 75 [2025-03-17 15:12:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:18,284 INFO L225 Difference]: With dead ends: 756 [2025-03-17 15:12:18,288 INFO L226 Difference]: Without dead ends: 750 [2025-03-17 15:12:18,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:18,289 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:18,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 190 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:18,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2025-03-17 15:12:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 749. [2025-03-17 15:12:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 631 states have (on average 1.3359746434231379) internal successors, (843), 681 states have internal predecessors, (843), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-17 15:12:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 983 transitions. [2025-03-17 15:12:18,321 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 983 transitions. Word has length 75 [2025-03-17 15:12:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 983 transitions. [2025-03-17 15:12:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 983 transitions. [2025-03-17 15:12:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 15:12:18,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:18,322 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:18,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:18,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2025-03-17 15:12:18,522 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:18,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2011967884, now seen corresponding path program 1 times [2025-03-17 15:12:18,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:18,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645006392] [2025-03-17 15:12:18,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:18,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:18,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:12:18,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:12:18,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:18,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074084351] [2025-03-17 15:12:18,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:18,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:18,533 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:18,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-17 15:12:18,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:12:18,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:12:18,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:18,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:18,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:18,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:18,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645006392] [2025-03-17 15:12:18,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074084351] [2025-03-17 15:12:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074084351] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:18,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:18,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:18,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463148012] [2025-03-17 15:12:18,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:18,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:18,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:18,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:18,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:18,967 INFO L87 Difference]: Start difference. First operand 749 states and 983 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:19,307 INFO L93 Difference]: Finished difference Result 972 states and 1318 transitions. [2025-03-17 15:12:19,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:19,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 76 [2025-03-17 15:12:19,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:19,310 INFO L225 Difference]: With dead ends: 972 [2025-03-17 15:12:19,310 INFO L226 Difference]: Without dead ends: 970 [2025-03-17 15:12:19,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:19,311 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 356 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:19,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 318 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2025-03-17 15:12:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 881. [2025-03-17 15:12:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 749 states have (on average 1.3511348464619493) internal successors, (1012), 799 states have internal predecessors, (1012), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2025-03-17 15:12:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1180 transitions. [2025-03-17 15:12:19,349 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1180 transitions. Word has length 76 [2025-03-17 15:12:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1180 transitions. [2025-03-17 15:12:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1180 transitions. [2025-03-17 15:12:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 15:12:19,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:19,353 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:19,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-17 15:12:19,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-17 15:12:19,554 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:19,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:19,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2053504965, now seen corresponding path program 1 times [2025-03-17 15:12:19,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:19,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660859973] [2025-03-17 15:12:19,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:19,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:19,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:12:19,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:12:19,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:19,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:19,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931194600] [2025-03-17 15:12:19,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:19,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:19,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:19,564 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:19,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-17 15:12:19,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:12:19,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:12:19,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:19,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:19,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:12:19,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:19,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:19,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:19,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660859973] [2025-03-17 15:12:19,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:19,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931194600] [2025-03-17 15:12:19,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931194600] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:19,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:19,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:12:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083764783] [2025-03-17 15:12:19,882 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:19,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:12:19,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:19,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:12:19,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:19,883 INFO L87 Difference]: Start difference. First operand 881 states and 1180 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:20,124 INFO L93 Difference]: Finished difference Result 925 states and 1246 transitions. [2025-03-17 15:12:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:20,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 77 [2025-03-17 15:12:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:20,126 INFO L225 Difference]: With dead ends: 925 [2025-03-17 15:12:20,126 INFO L226 Difference]: Without dead ends: 921 [2025-03-17 15:12:20,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:20,127 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 224 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:20,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 147 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2025-03-17 15:12:20,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 802. [2025-03-17 15:12:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 680 states have (on average 1.3102941176470588) internal successors, (891), 728 states have internal predecessors, (891), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 67 states have call predecessors, (76), 76 states have call successors, (76) [2025-03-17 15:12:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1043 transitions. [2025-03-17 15:12:20,164 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1043 transitions. Word has length 77 [2025-03-17 15:12:20,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:20,164 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1043 transitions. [2025-03-17 15:12:20,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:12:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1043 transitions. [2025-03-17 15:12:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-17 15:12:20,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:20,165 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:20,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:20,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:20,366 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:20,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash 765855594, now seen corresponding path program 1 times [2025-03-17 15:12:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055651471] [2025-03-17 15:12:20,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:20,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 15:12:20,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 15:12:20,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:20,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:20,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154676003] [2025-03-17 15:12:20,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:20,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:20,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:20,376 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:20,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-17 15:12:20,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 15:12:20,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 15:12:20,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:20,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:20,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:20,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:12:20,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:20,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055651471] [2025-03-17 15:12:20,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154676003] [2025-03-17 15:12:20,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154676003] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:20,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:20,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:20,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517233475] [2025-03-17 15:12:20,771 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:20,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:20,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:20,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:20,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:20,772 INFO L87 Difference]: Start difference. First operand 802 states and 1043 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:21,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:21,313 INFO L93 Difference]: Finished difference Result 848 states and 1093 transitions. [2025-03-17 15:12:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:21,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2025-03-17 15:12:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:21,315 INFO L225 Difference]: With dead ends: 848 [2025-03-17 15:12:21,315 INFO L226 Difference]: Without dead ends: 844 [2025-03-17 15:12:21,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:21,315 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 153 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:21,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 395 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2025-03-17 15:12:21,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 754. [2025-03-17 15:12:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 640 states have (on average 1.2765625) internal successors, (817), 686 states have internal predecessors, (817), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-17 15:12:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 957 transitions. [2025-03-17 15:12:21,349 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 957 transitions. Word has length 78 [2025-03-17 15:12:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:21,349 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 957 transitions. [2025-03-17 15:12:21,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 15:12:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 957 transitions. [2025-03-17 15:12:21,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-17 15:12:21,350 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:21,350 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:21,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:21,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:21,551 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:21,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1444926941, now seen corresponding path program 1 times [2025-03-17 15:12:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:21,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724510109] [2025-03-17 15:12:21,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:21,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 15:12:21,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 15:12:21,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:21,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100847202] [2025-03-17 15:12:21,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:21,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:21,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:21,561 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:21,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-17 15:12:21,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 15:12:21,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 15:12:21,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:21,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:21,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:21,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 15:12:21,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:21,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724510109] [2025-03-17 15:12:21,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100847202] [2025-03-17 15:12:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100847202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:21,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:21,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:21,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078581710] [2025-03-17 15:12:21,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:21,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:21,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:21,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:21,879 INFO L87 Difference]: Start difference. First operand 754 states and 957 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-17 15:12:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:22,106 INFO L93 Difference]: Finished difference Result 901 states and 1154 transitions. [2025-03-17 15:12:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:22,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 84 [2025-03-17 15:12:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:22,109 INFO L225 Difference]: With dead ends: 901 [2025-03-17 15:12:22,109 INFO L226 Difference]: Without dead ends: 899 [2025-03-17 15:12:22,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:22,110 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 532 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:22,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 280 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:22,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2025-03-17 15:12:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 862. [2025-03-17 15:12:22,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 737 states have (on average 1.3080054274084125) internal successors, (964), 783 states have internal predecessors, (964), 81 states have call successors, (81), 6 states have call predecessors, (81), 6 states have return successors, (81), 72 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-17 15:12:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1126 transitions. [2025-03-17 15:12:22,149 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1126 transitions. Word has length 84 [2025-03-17 15:12:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:22,149 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1126 transitions. [2025-03-17 15:12:22,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-17 15:12:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1126 transitions. [2025-03-17 15:12:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-17 15:12:22,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:22,150 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:22,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-17 15:12:22,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:22,350 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash 197552287, now seen corresponding path program 1 times [2025-03-17 15:12:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039822681] [2025-03-17 15:12:22,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:22,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:22,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 15:12:22,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 15:12:22,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:22,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:22,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449526797] [2025-03-17 15:12:22,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:22,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:22,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:22,362 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:22,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-17 15:12:22,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 15:12:22,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 15:12:22,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:22,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:22,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-17 15:12:22,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-17 15:12:22,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:22,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:22,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039822681] [2025-03-17 15:12:22,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:22,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449526797] [2025-03-17 15:12:22,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449526797] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:22,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:22,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 15:12:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939863941] [2025-03-17 15:12:22,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:22,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:12:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:22,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:12:22,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:12:22,843 INFO L87 Difference]: Start difference. First operand 862 states and 1126 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-03-17 15:12:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:23,615 INFO L93 Difference]: Finished difference Result 1114 states and 1496 transitions. [2025-03-17 15:12:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 15:12:23,615 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 88 [2025-03-17 15:12:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:23,618 INFO L225 Difference]: With dead ends: 1114 [2025-03-17 15:12:23,618 INFO L226 Difference]: Without dead ends: 1079 [2025-03-17 15:12:23,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:12:23,619 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 370 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:23,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 440 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:12:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2025-03-17 15:12:23,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 965. [2025-03-17 15:12:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 829 states have (on average 1.338962605548854) internal successors, (1110), 876 states have internal predecessors, (1110), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-17 15:12:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1294 transitions. [2025-03-17 15:12:23,661 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1294 transitions. Word has length 88 [2025-03-17 15:12:23,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:23,661 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1294 transitions. [2025-03-17 15:12:23,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-03-17 15:12:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1294 transitions. [2025-03-17 15:12:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 15:12:23,662 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:23,662 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:23,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-17 15:12:23,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-17 15:12:23,862 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:23,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:23,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1829153657, now seen corresponding path program 1 times [2025-03-17 15:12:23,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:23,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918886770] [2025-03-17 15:12:23,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:23,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:23,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:12:23,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:12:23,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:23,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:23,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140390656] [2025-03-17 15:12:23,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:23,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:23,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:23,874 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:23,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-17 15:12:23,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:12:23,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:12:23,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:23,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:23,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:23,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:24,119 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 15:12:24,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:24,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918886770] [2025-03-17 15:12:24,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140390656] [2025-03-17 15:12:24,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140390656] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:24,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:24,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:24,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456053161] [2025-03-17 15:12:24,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:24,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:24,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:24,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:24,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:24,188 INFO L87 Difference]: Start difference. First operand 965 states and 1294 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-17 15:12:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:24,868 INFO L93 Difference]: Finished difference Result 1030 states and 1380 transitions. [2025-03-17 15:12:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:24,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 89 [2025-03-17 15:12:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:24,871 INFO L225 Difference]: With dead ends: 1030 [2025-03-17 15:12:24,872 INFO L226 Difference]: Without dead ends: 1026 [2025-03-17 15:12:24,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:24,872 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 184 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:24,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 407 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 15:12:24,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2025-03-17 15:12:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 994. [2025-03-17 15:12:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 860 states have (on average 1.336046511627907) internal successors, (1149), 901 states have internal predecessors, (1149), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-17 15:12:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1333 transitions. [2025-03-17 15:12:24,911 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1333 transitions. Word has length 89 [2025-03-17 15:12:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:24,911 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1333 transitions. [2025-03-17 15:12:24,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-17 15:12:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1333 transitions. [2025-03-17 15:12:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-17 15:12:24,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:24,912 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:24,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-17 15:12:25,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-17 15:12:25,113 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:25,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2095618311, now seen corresponding path program 1 times [2025-03-17 15:12:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:25,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115064849] [2025-03-17 15:12:25,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:25,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:25,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:25,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:25,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:25,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115064849] [2025-03-17 15:12:25,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115064849] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565903859] [2025-03-17 15:12:25,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:25,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:25,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:25,184 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:25,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-17 15:12:25,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:25,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:25,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:25,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:25,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:25,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:25,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:25,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565903859] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:25,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:25,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:12:25,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925336835] [2025-03-17 15:12:25,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:25,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:12:25,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:25,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:12:25,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:25,499 INFO L87 Difference]: Start difference. First operand 994 states and 1333 transitions. Second operand has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:25,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:25,929 INFO L93 Difference]: Finished difference Result 1125 states and 1453 transitions. [2025-03-17 15:12:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:12:25,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 98 [2025-03-17 15:12:25,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:25,932 INFO L225 Difference]: With dead ends: 1125 [2025-03-17 15:12:25,932 INFO L226 Difference]: Without dead ends: 1124 [2025-03-17 15:12:25,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:12:25,933 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 901 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:25,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 466 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2025-03-17 15:12:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1044. [2025-03-17 15:12:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 904 states have (on average 1.329646017699115) internal successors, (1202), 945 states have internal predecessors, (1202), 98 states have call successors, (98), 6 states have call predecessors, (98), 6 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-17 15:12:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1398 transitions. [2025-03-17 15:12:25,992 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1398 transitions. Word has length 98 [2025-03-17 15:12:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:25,992 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1398 transitions. [2025-03-17 15:12:25,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1398 transitions. [2025-03-17 15:12:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-17 15:12:25,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:25,993 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:25,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-17 15:12:26,197 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:26,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2095619656, now seen corresponding path program 1 times [2025-03-17 15:12:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:26,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742646320] [2025-03-17 15:12:26,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:26,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:26,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:26,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:26,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:26,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:26,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742646320] [2025-03-17 15:12:26,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742646320] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434289679] [2025-03-17 15:12:26,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:26,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:26,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:26,257 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:26,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-17 15:12:26,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:26,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:26,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:26,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:26,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:12:26,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:26,416 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:26,416 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:26,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434289679] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:26,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:26,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-03-17 15:12:26,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119388938] [2025-03-17 15:12:26,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:26,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:12:26,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:26,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:12:26,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:12:26,521 INFO L87 Difference]: Start difference. First operand 1044 states and 1398 transitions. Second operand has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:27,185 INFO L93 Difference]: Finished difference Result 1554 states and 2024 transitions. [2025-03-17 15:12:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-17 15:12:27,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 98 [2025-03-17 15:12:27,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:27,188 INFO L225 Difference]: With dead ends: 1554 [2025-03-17 15:12:27,189 INFO L226 Difference]: Without dead ends: 1552 [2025-03-17 15:12:27,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=524, Invalid=1368, Unknown=0, NotChecked=0, Total=1892 [2025-03-17 15:12:27,189 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 1528 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:27,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 754 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2025-03-17 15:12:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1171. [2025-03-17 15:12:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1018 states have (on average 1.336935166994106) internal successors, (1361), 1059 states have internal predecessors, (1361), 111 states have call successors, (111), 6 states have call predecessors, (111), 6 states have return successors, (111), 105 states have call predecessors, (111), 111 states have call successors, (111) [2025-03-17 15:12:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1583 transitions. [2025-03-17 15:12:27,245 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1583 transitions. Word has length 98 [2025-03-17 15:12:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:27,245 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1583 transitions. [2025-03-17 15:12:27,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1583 transitions. [2025-03-17 15:12:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-17 15:12:27,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:27,246 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:27,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:27,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-17 15:12:27,447 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:27,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:27,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1685416871, now seen corresponding path program 1 times [2025-03-17 15:12:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:27,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829128852] [2025-03-17 15:12:27,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:27,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:27,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:27,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:27,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829128852] [2025-03-17 15:12:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829128852] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248129106] [2025-03-17 15:12:27,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:27,509 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:27,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-17 15:12:27,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-17 15:12:27,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-17 15:12:27,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:27,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:27,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:27,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:27,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248129106] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:27,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:12:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005831475] [2025-03-17 15:12:27,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:27,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:12:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:27,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:12:27,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:27,815 INFO L87 Difference]: Start difference. First operand 1171 states and 1583 transitions. Second operand has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:28,222 INFO L93 Difference]: Finished difference Result 1305 states and 1705 transitions. [2025-03-17 15:12:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:12:28,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 98 [2025-03-17 15:12:28,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:28,226 INFO L225 Difference]: With dead ends: 1305 [2025-03-17 15:12:28,226 INFO L226 Difference]: Without dead ends: 1304 [2025-03-17 15:12:28,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:12:28,226 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 598 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:28,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 493 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2025-03-17 15:12:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1196. [2025-03-17 15:12:28,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 1040 states have (on average 1.3307692307692307) internal successors, (1384), 1081 states have internal predecessors, (1384), 114 states have call successors, (114), 6 states have call predecessors, (114), 6 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2025-03-17 15:12:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1612 transitions. [2025-03-17 15:12:28,280 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1612 transitions. Word has length 98 [2025-03-17 15:12:28,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:28,280 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1612 transitions. [2025-03-17 15:12:28,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 18.0) internal successors, (180), 11 states have internal predecessors, (180), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-17 15:12:28,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1612 transitions. [2025-03-17 15:12:28,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-17 15:12:28,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:28,281 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:28,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:28,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-17 15:12:28,481 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:28,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 708315494, now seen corresponding path program 1 times [2025-03-17 15:12:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954592449] [2025-03-17 15:12:28,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:28,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:28,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-17 15:12:28,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-17 15:12:28,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:28,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:28,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:28,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954592449] [2025-03-17 15:12:28,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954592449] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:28,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964394305] [2025-03-17 15:12:28,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:28,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:28,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:28,532 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:28,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-17 15:12:28,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-17 15:12:28,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-17 15:12:28,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:28,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:28,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:28,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:28,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:28,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964394305] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:28,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:28,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-03-17 15:12:28,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297213252] [2025-03-17 15:12:28,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:28,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:28,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:28,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:28,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:12:28,815 INFO L87 Difference]: Start difference. First operand 1196 states and 1612 transitions. Second operand has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:12:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:29,333 INFO L93 Difference]: Finished difference Result 1614 states and 2201 transitions. [2025-03-17 15:12:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:12:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 99 [2025-03-17 15:12:29,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:29,355 INFO L225 Difference]: With dead ends: 1614 [2025-03-17 15:12:29,355 INFO L226 Difference]: Without dead ends: 1612 [2025-03-17 15:12:29,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:29,356 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 258 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:29,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 410 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2025-03-17 15:12:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1335. [2025-03-17 15:12:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1167 states have (on average 1.335904027420737) internal successors, (1559), 1208 states have internal predecessors, (1559), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2025-03-17 15:12:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1811 transitions. [2025-03-17 15:12:29,422 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1811 transitions. Word has length 99 [2025-03-17 15:12:29,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:29,422 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1811 transitions. [2025-03-17 15:12:29,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:12:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1811 transitions. [2025-03-17 15:12:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-17 15:12:29,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:29,422 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:29,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-03-17 15:12:29,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:29,623 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:29,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1079478952, now seen corresponding path program 1 times [2025-03-17 15:12:29,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:29,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718353893] [2025-03-17 15:12:29,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:29,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:29,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 15:12:29,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 15:12:29,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:29,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:29,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718353893] [2025-03-17 15:12:29,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718353893] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608012841] [2025-03-17 15:12:29,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:29,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:29,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:29,672 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:29,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-17 15:12:29,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 15:12:29,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 15:12:29,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:29,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:29,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:12:29,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:29,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608012841] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:29,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-03-17 15:12:29,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187481180] [2025-03-17 15:12:29,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:29,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:29,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:29,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:12:29,953 INFO L87 Difference]: Start difference. First operand 1335 states and 1811 transitions. Second operand has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:12:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:30,322 INFO L93 Difference]: Finished difference Result 1876 states and 2595 transitions. [2025-03-17 15:12:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:12:30,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 101 [2025-03-17 15:12:30,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:30,330 INFO L225 Difference]: With dead ends: 1876 [2025-03-17 15:12:30,330 INFO L226 Difference]: Without dead ends: 1874 [2025-03-17 15:12:30,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:30,331 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 292 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:30,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 364 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2025-03-17 15:12:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1506. [2025-03-17 15:12:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1323 states have (on average 1.344671201814059) internal successors, (1779), 1364 states have internal predecessors, (1779), 141 states have call successors, (141), 6 states have call predecessors, (141), 6 states have return successors, (141), 135 states have call predecessors, (141), 141 states have call successors, (141) [2025-03-17 15:12:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2061 transitions. [2025-03-17 15:12:30,412 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2061 transitions. Word has length 101 [2025-03-17 15:12:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:30,412 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2061 transitions. [2025-03-17 15:12:30,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:12:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2061 transitions. [2025-03-17 15:12:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-17 15:12:30,412 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:30,412 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:30,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:30,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:30,615 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:30,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash -729371684, now seen corresponding path program 1 times [2025-03-17 15:12:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135053383] [2025-03-17 15:12:30,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:30,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:12:30,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:12:30,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:30,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:30,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048762942] [2025-03-17 15:12:30,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:30,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:30,629 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:30,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-17 15:12:30,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:12:30,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:12:30,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:30,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:30,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 15:12:30,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:31,044 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-17 15:12:31,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:31,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135053383] [2025-03-17 15:12:31,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048762942] [2025-03-17 15:12:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048762942] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:31,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:31,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 15:12:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728091276] [2025-03-17 15:12:31,170 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:31,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:12:31,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:31,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:12:31,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:12:31,171 INFO L87 Difference]: Start difference. First operand 1506 states and 2061 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:32,118 INFO L93 Difference]: Finished difference Result 1729 states and 2377 transitions. [2025-03-17 15:12:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:12:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 107 [2025-03-17 15:12:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:32,122 INFO L225 Difference]: With dead ends: 1729 [2025-03-17 15:12:32,122 INFO L226 Difference]: Without dead ends: 1727 [2025-03-17 15:12:32,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2025-03-17 15:12:32,123 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 458 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:32,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 490 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:12:32,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2025-03-17 15:12:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1654. [2025-03-17 15:12:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1456 states have (on average 1.3447802197802199) internal successors, (1958), 1497 states have internal predecessors, (1958), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 15:12:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2270 transitions. [2025-03-17 15:12:32,200 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2270 transitions. Word has length 107 [2025-03-17 15:12:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:32,200 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2270 transitions. [2025-03-17 15:12:32,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:32,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2270 transitions. [2025-03-17 15:12:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-17 15:12:32,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:32,201 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:32,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-17 15:12:32,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:32,401 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:32,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1248716926, now seen corresponding path program 2 times [2025-03-17 15:12:32,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:32,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857797351] [2025-03-17 15:12:32,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:32,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:32,407 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 107 statements into 2 equivalence classes. [2025-03-17 15:12:32,417 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:12:32,417 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:32,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418896459] [2025-03-17 15:12:32,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:32,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:32,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:32,420 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:32,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-17 15:12:32,457 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 107 statements into 2 equivalence classes. [2025-03-17 15:12:32,474 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:12:32,474 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:32,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:32,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 15:12:32,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-17 15:12:32,848 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:32,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:32,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857797351] [2025-03-17 15:12:32,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:32,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418896459] [2025-03-17 15:12:32,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418896459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:32,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:32,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-17 15:12:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619284209] [2025-03-17 15:12:32,944 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:32,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:12:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:32,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:12:32,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:12:32,944 INFO L87 Difference]: Start difference. First operand 1654 states and 2270 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-17 15:12:33,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:33,860 INFO L93 Difference]: Finished difference Result 1734 states and 2369 transitions. [2025-03-17 15:12:33,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:12:33,861 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 107 [2025-03-17 15:12:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:33,864 INFO L225 Difference]: With dead ends: 1734 [2025-03-17 15:12:33,864 INFO L226 Difference]: Without dead ends: 1730 [2025-03-17 15:12:33,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2025-03-17 15:12:33,865 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 452 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:33,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 606 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:12:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2025-03-17 15:12:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1653. [2025-03-17 15:12:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1455 states have (on average 1.3443298969072166) internal successors, (1956), 1496 states have internal predecessors, (1956), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 15:12:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2268 transitions. [2025-03-17 15:12:33,947 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2268 transitions. Word has length 107 [2025-03-17 15:12:33,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:33,947 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2268 transitions. [2025-03-17 15:12:33,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-17 15:12:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2268 transitions. [2025-03-17 15:12:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-17 15:12:33,947 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:33,948 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:33,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:34,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-03-17 15:12:34,148 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:34,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:34,148 INFO L85 PathProgramCache]: Analyzing trace with hash -429674411, now seen corresponding path program 1 times [2025-03-17 15:12:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:34,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233529693] [2025-03-17 15:12:34,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:34,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:34,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:12:34,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:12:34,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:34,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:12:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:34,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233529693] [2025-03-17 15:12:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233529693] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:34,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508816034] [2025-03-17 15:12:34,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:34,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:34,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:34,221 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:34,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-17 15:12:34,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:12:34,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:12:34,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:34,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:34,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:12:34,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:12:34,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:12:34,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508816034] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:34,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:34,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 15:12:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027082770] [2025-03-17 15:12:34,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:34,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:12:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:34,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:12:34,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:34,386 INFO L87 Difference]: Start difference. First operand 1653 states and 2268 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-17 15:12:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:35,093 INFO L93 Difference]: Finished difference Result 1676 states and 2293 transitions. [2025-03-17 15:12:35,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:12:35,093 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 109 [2025-03-17 15:12:35,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:35,096 INFO L225 Difference]: With dead ends: 1676 [2025-03-17 15:12:35,096 INFO L226 Difference]: Without dead ends: 1675 [2025-03-17 15:12:35,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:12:35,097 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 147 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:35,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 151 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 15:12:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2025-03-17 15:12:35,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1653. [2025-03-17 15:12:35,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1455 states have (on average 1.334020618556701) internal successors, (1941), 1496 states have internal predecessors, (1941), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 15:12:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2253 transitions. [2025-03-17 15:12:35,191 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2253 transitions. Word has length 109 [2025-03-17 15:12:35,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:35,191 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2253 transitions. [2025-03-17 15:12:35,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-17 15:12:35,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2253 transitions. [2025-03-17 15:12:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-17 15:12:35,192 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:35,192 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 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, 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] [2025-03-17 15:12:35,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-03-17 15:12:35,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-03-17 15:12:35,397 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:35,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:35,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1135685634, now seen corresponding path program 1 times [2025-03-17 15:12:35,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:35,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437058445] [2025-03-17 15:12:35,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:35,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:35,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-17 15:12:35,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-17 15:12:35,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:35,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:35,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009357817] [2025-03-17 15:12:35,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:35,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:35,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:35,423 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:35,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-17 15:12:35,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-17 15:12:35,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-17 15:12:35,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:35,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:35,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:12:35,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-17 15:12:35,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:36,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437058445] [2025-03-17 15:12:36,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009357817] [2025-03-17 15:12:36,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009357817] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:36,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:36,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 15:12:36,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074772404] [2025-03-17 15:12:36,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:36,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:12:36,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:36,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:12:36,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:12:36,071 INFO L87 Difference]: Start difference. First operand 1653 states and 2253 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:36,706 INFO L93 Difference]: Finished difference Result 1690 states and 2289 transitions. [2025-03-17 15:12:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:12:36,706 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 108 [2025-03-17 15:12:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:36,709 INFO L225 Difference]: With dead ends: 1690 [2025-03-17 15:12:36,709 INFO L226 Difference]: Without dead ends: 1688 [2025-03-17 15:12:36,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=404, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:12:36,710 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 369 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:36,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 318 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2025-03-17 15:12:36,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1653. [2025-03-17 15:12:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1455 states have (on average 1.3326460481099656) internal successors, (1939), 1496 states have internal predecessors, (1939), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 15:12:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2251 transitions. [2025-03-17 15:12:36,793 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2251 transitions. Word has length 108 [2025-03-17 15:12:36,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:36,793 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2251 transitions. [2025-03-17 15:12:36,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2251 transitions. [2025-03-17 15:12:36,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-17 15:12:36,794 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:36,794 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 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, 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] [2025-03-17 15:12:36,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2025-03-17 15:12:36,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-03-17 15:12:36,995 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:36,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash 55519132, now seen corresponding path program 2 times [2025-03-17 15:12:36,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:36,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952425935] [2025-03-17 15:12:36,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:36,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:36,998 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-17 15:12:37,005 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-17 15:12:37,005 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:37,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:37,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370780120] [2025-03-17 15:12:37,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:37,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:37,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:37,008 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:37,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-03-17 15:12:37,030 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-17 15:12:37,047 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-17 15:12:37,047 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:37,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:37,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:12:37,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 9 proven. 45 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-17 15:12:37,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:37,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:37,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952425935] [2025-03-17 15:12:37,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:37,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370780120] [2025-03-17 15:12:37,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370780120] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:37,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:37,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:12:37,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885137173] [2025-03-17 15:12:37,451 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:37,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:37,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:37,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:37,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:37,452 INFO L87 Difference]: Start difference. First operand 1653 states and 2251 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:37,919 INFO L93 Difference]: Finished difference Result 1690 states and 2287 transitions. [2025-03-17 15:12:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:37,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 108 [2025-03-17 15:12:37,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:37,923 INFO L225 Difference]: With dead ends: 1690 [2025-03-17 15:12:37,923 INFO L226 Difference]: Without dead ends: 1688 [2025-03-17 15:12:37,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:12:37,923 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 169 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:37,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 331 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2025-03-17 15:12:38,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1653. [2025-03-17 15:12:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1455 states have (on average 1.3312714776632302) internal successors, (1937), 1496 states have internal predecessors, (1937), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-17 15:12:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2249 transitions. [2025-03-17 15:12:38,023 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2249 transitions. Word has length 108 [2025-03-17 15:12:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:38,023 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2249 transitions. [2025-03-17 15:12:38,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-17 15:12:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2249 transitions. [2025-03-17 15:12:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 15:12:38,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:38,024 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:38,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:38,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-03-17 15:12:38,225 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:38,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash -435004847, now seen corresponding path program 1 times [2025-03-17 15:12:38,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:38,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947432155] [2025-03-17 15:12:38,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:38,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:12:38,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:12:38,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:38,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:12:38,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947432155] [2025-03-17 15:12:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947432155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:12:38,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:12:38,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123955454] [2025-03-17 15:12:38,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:38,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:12:38,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:38,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:12:38,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:38,285 INFO L87 Difference]: Start difference. First operand 1653 states and 2249 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:38,818 INFO L93 Difference]: Finished difference Result 1719 states and 2319 transitions. [2025-03-17 15:12:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:38,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 110 [2025-03-17 15:12:38,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:38,821 INFO L225 Difference]: With dead ends: 1719 [2025-03-17 15:12:38,821 INFO L226 Difference]: Without dead ends: 1718 [2025-03-17 15:12:38,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:38,821 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 272 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:38,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 220 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2025-03-17 15:12:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1620. [2025-03-17 15:12:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1425 states have (on average 1.3305263157894738) internal successors, (1896), 1466 states have internal predecessors, (1896), 153 states have call successors, (153), 6 states have call predecessors, (153), 6 states have return successors, (153), 147 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:12:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2202 transitions. [2025-03-17 15:12:38,908 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2202 transitions. Word has length 110 [2025-03-17 15:12:38,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:38,908 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2202 transitions. [2025-03-17 15:12:38,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:38,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2202 transitions. [2025-03-17 15:12:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-17 15:12:38,909 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:38,909 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:38,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-03-17 15:12:38,910 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:38,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash -846516198, now seen corresponding path program 1 times [2025-03-17 15:12:38,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:38,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246463693] [2025-03-17 15:12:38,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:38,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:38,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:12:38,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:12:38,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:38,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:38,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117974184] [2025-03-17 15:12:38,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:38,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:38,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:38,922 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:38,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-03-17 15:12:38,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:12:38,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:12:38,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:38,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:38,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:12:38,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:39,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:39,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246463693] [2025-03-17 15:12:39,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117974184] [2025-03-17 15:12:39,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117974184] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:39,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:39,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:12:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023335099] [2025-03-17 15:12:39,251 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:39,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:12:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:39,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:12:39,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:12:39,251 INFO L87 Difference]: Start difference. First operand 1620 states and 2202 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:12:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:39,849 INFO L93 Difference]: Finished difference Result 1752 states and 2356 transitions. [2025-03-17 15:12:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:12:39,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 109 [2025-03-17 15:12:39,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:39,852 INFO L225 Difference]: With dead ends: 1752 [2025-03-17 15:12:39,852 INFO L226 Difference]: Without dead ends: 1748 [2025-03-17 15:12:39,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:39,853 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 206 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:39,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 345 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:39,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2025-03-17 15:12:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1444. [2025-03-17 15:12:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1271 states have (on average 1.2871754523996852) internal successors, (1636), 1308 states have internal predecessors, (1636), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1906 transitions. [2025-03-17 15:12:39,935 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1906 transitions. Word has length 109 [2025-03-17 15:12:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:39,935 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1906 transitions. [2025-03-17 15:12:39,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:12:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1906 transitions. [2025-03-17 15:12:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 15:12:39,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:39,936 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:39,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:40,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:40,140 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:40,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash -472198276, now seen corresponding path program 1 times [2025-03-17 15:12:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:40,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794774737] [2025-03-17 15:12:40,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:40,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:40,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:12:40,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:12:40,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:40,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:40,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131320017] [2025-03-17 15:12:40,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:40,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:40,152 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:40,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-03-17 15:12:40,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:12:40,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:12:40,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:40,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:40,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:12:40,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:40,427 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:40,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:41,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:41,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794774737] [2025-03-17 15:12:41,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:41,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131320017] [2025-03-17 15:12:41,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131320017] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:41,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:41,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:12:41,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119022910] [2025-03-17 15:12:41,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:41,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:12:41,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:41,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:12:41,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2025-03-17 15:12:41,887 INFO L87 Difference]: Start difference. First operand 1444 states and 1906 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:12:42,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:42,193 INFO L93 Difference]: Finished difference Result 1484 states and 1949 transitions. [2025-03-17 15:12:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:12:42,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 110 [2025-03-17 15:12:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:42,196 INFO L225 Difference]: With dead ends: 1484 [2025-03-17 15:12:42,196 INFO L226 Difference]: Without dead ends: 1482 [2025-03-17 15:12:42,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2025-03-17 15:12:42,197 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 120 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:42,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 213 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:12:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2025-03-17 15:12:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1444. [2025-03-17 15:12:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1271 states have (on average 1.2856018882769473) internal successors, (1634), 1308 states have internal predecessors, (1634), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1904 transitions. [2025-03-17 15:12:42,274 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1904 transitions. Word has length 110 [2025-03-17 15:12:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:42,274 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1904 transitions. [2025-03-17 15:12:42,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 15:12:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1904 transitions. [2025-03-17 15:12:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 15:12:42,275 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:42,275 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:42,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2025-03-17 15:12:42,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-17 15:12:42,476 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:42,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1814281114, now seen corresponding path program 2 times [2025-03-17 15:12:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785461575] [2025-03-17 15:12:42,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:42,480 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-17 15:12:42,484 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:12:42,484 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:42,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:42,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081091032] [2025-03-17 15:12:42,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:42,486 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:42,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-03-17 15:12:42,507 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-17 15:12:42,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:12:42,524 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:42,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:42,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-17 15:12:42,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:42,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785461575] [2025-03-17 15:12:43,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081091032] [2025-03-17 15:12:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081091032] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:43,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:12:43,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2025-03-17 15:12:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486555129] [2025-03-17 15:12:43,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:43,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:12:43,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:43,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:12:43,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:43,197 INFO L87 Difference]: Start difference. First operand 1444 states and 1904 transitions. Second operand has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-03-17 15:12:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:45,597 INFO L93 Difference]: Finished difference Result 1539 states and 2008 transitions. [2025-03-17 15:12:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:12:45,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2025-03-17 15:12:45,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:45,600 INFO L225 Difference]: With dead ends: 1539 [2025-03-17 15:12:45,600 INFO L226 Difference]: Without dead ends: 1537 [2025-03-17 15:12:45,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:12:45,601 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 484 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:45,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 502 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-17 15:12:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2025-03-17 15:12:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1452. [2025-03-17 15:12:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1279 states have (on average 1.2806880375293197) internal successors, (1638), 1316 states have internal predecessors, (1638), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1908 transitions. [2025-03-17 15:12:45,691 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1908 transitions. Word has length 110 [2025-03-17 15:12:45,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:45,691 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1908 transitions. [2025-03-17 15:12:45,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-03-17 15:12:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1908 transitions. [2025-03-17 15:12:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-17 15:12:45,692 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:45,692 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:45,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:45,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:45,893 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:45,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:45,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1753244584, now seen corresponding path program 1 times [2025-03-17 15:12:45,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:45,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700740849] [2025-03-17 15:12:45,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:45,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:45,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-17 15:12:45,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-17 15:12:45,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:45,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277220728] [2025-03-17 15:12:45,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:45,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:45,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:45,908 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:45,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-03-17 15:12:45,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-17 15:12:45,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-17 15:12:45,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:45,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:45,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:12:45,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:46,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-17 15:12:46,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700740849] [2025-03-17 15:12:46,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277220728] [2025-03-17 15:12:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277220728] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:46,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:46,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-17 15:12:46,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879696537] [2025-03-17 15:12:46,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:46,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:12:46,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:46,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:12:46,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:46,397 INFO L87 Difference]: Start difference. First operand 1452 states and 1908 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:46,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:46,798 INFO L93 Difference]: Finished difference Result 1452 states and 1908 transitions. [2025-03-17 15:12:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:12:46,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2025-03-17 15:12:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:46,801 INFO L225 Difference]: With dead ends: 1452 [2025-03-17 15:12:46,801 INFO L226 Difference]: Without dead ends: 1451 [2025-03-17 15:12:46,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:46,802 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 93 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:46,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 129 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2025-03-17 15:12:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2025-03-17 15:12:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1279 states have (on average 1.2642689601250978) internal successors, (1617), 1315 states have internal predecessors, (1617), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1887 transitions. [2025-03-17 15:12:46,902 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1887 transitions. Word has length 111 [2025-03-17 15:12:46,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:46,902 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 1887 transitions. [2025-03-17 15:12:46,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:46,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1887 transitions. [2025-03-17 15:12:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-17 15:12:46,902 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:46,903 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2025-03-17 15:12:46,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2025-03-17 15:12:47,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2025-03-17 15:12:47,103 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:47,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1483992826, now seen corresponding path program 1 times [2025-03-17 15:12:47,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:47,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540916156] [2025-03-17 15:12:47,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:47,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-17 15:12:47,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 15:12:47,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:47,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:47,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235448695] [2025-03-17 15:12:47,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:47,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:47,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:47,114 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:47,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2025-03-17 15:12:47,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-17 15:12:47,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 15:12:47,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:47,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:47,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:12:47,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:12:47,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2025-03-17 15:12:47,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:47,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540916156] [2025-03-17 15:12:47,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235448695] [2025-03-17 15:12:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235448695] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:47,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-17 15:12:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126677377] [2025-03-17 15:12:47,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:47,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:12:47,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:47,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:12:47,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:47,711 INFO L87 Difference]: Start difference. First operand 1451 states and 1887 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:48,848 INFO L93 Difference]: Finished difference Result 1451 states and 1887 transitions. [2025-03-17 15:12:48,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:12:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2025-03-17 15:12:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:48,851 INFO L225 Difference]: With dead ends: 1451 [2025-03-17 15:12:48,851 INFO L226 Difference]: Without dead ends: 1448 [2025-03-17 15:12:48,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:12:48,852 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 93 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:48,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 129 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 15:12:48,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2025-03-17 15:12:48,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2025-03-17 15:12:48,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1279 states have (on average 1.232212666145426) internal successors, (1576), 1312 states have internal predecessors, (1576), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1846 transitions. [2025-03-17 15:12:48,942 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1846 transitions. Word has length 112 [2025-03-17 15:12:48,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:48,942 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1846 transitions. [2025-03-17 15:12:48,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 15:12:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1846 transitions. [2025-03-17 15:12:48,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-17 15:12:48,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:48,943 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:48,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:49,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:49,144 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:49,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:49,145 INFO L85 PathProgramCache]: Analyzing trace with hash -616412708, now seen corresponding path program 2 times [2025-03-17 15:12:49,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:49,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320469195] [2025-03-17 15:12:49,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:49,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:49,148 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-17 15:12:49,161 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-17 15:12:49,161 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:49,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:49,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454283801] [2025-03-17 15:12:49,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:49,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:49,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:49,165 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:49,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2025-03-17 15:12:49,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-17 15:12:49,202 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-17 15:12:49,202 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:49,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:49,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:12:49,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:49,487 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-03-17 15:12:49,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:50,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:50,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320469195] [2025-03-17 15:12:50,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:50,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454283801] [2025-03-17 15:12:50,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454283801] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:50,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:50,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:12:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883430432] [2025-03-17 15:12:50,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:50,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:12:50,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:50,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:12:50,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2025-03-17 15:12:50,982 INFO L87 Difference]: Start difference. First operand 1448 states and 1846 transitions. Second operand has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:51,372 INFO L93 Difference]: Finished difference Result 1924 states and 2445 transitions. [2025-03-17 15:12:51,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:12:51,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 118 [2025-03-17 15:12:51,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:51,376 INFO L225 Difference]: With dead ends: 1924 [2025-03-17 15:12:51,376 INFO L226 Difference]: Without dead ends: 1922 [2025-03-17 15:12:51,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=89, Unknown=1, NotChecked=0, Total=132 [2025-03-17 15:12:51,377 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 511 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:51,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 397 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2025-03-17 15:12:51,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1448. [2025-03-17 15:12:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1279 states have (on average 1.2306489444878812) internal successors, (1574), 1312 states have internal predecessors, (1574), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:51,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1844 transitions. [2025-03-17 15:12:51,474 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1844 transitions. Word has length 118 [2025-03-17 15:12:51,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:51,474 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1844 transitions. [2025-03-17 15:12:51,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:51,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1844 transitions. [2025-03-17 15:12:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-17 15:12:51,475 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:51,475 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:51,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2025-03-17 15:12:51,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:51,676 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:51,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2046633264, now seen corresponding path program 1 times [2025-03-17 15:12:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:51,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001138275] [2025-03-17 15:12:51,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:51,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 15:12:51,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 15:12:51,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:51,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:51,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448194505] [2025-03-17 15:12:51,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:51,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:51,688 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:51,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2025-03-17 15:12:51,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 15:12:51,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 15:12:51,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:51,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:51,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:12:51,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:12:52,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:52,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:52,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001138275] [2025-03-17 15:12:52,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:52,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448194505] [2025-03-17 15:12:52,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448194505] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:52,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:52,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:12:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281626958] [2025-03-17 15:12:52,373 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:52,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:12:52,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:52,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:12:52,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:52,374 INFO L87 Difference]: Start difference. First operand 1448 states and 1844 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:52,856 INFO L93 Difference]: Finished difference Result 1589 states and 2019 transitions. [2025-03-17 15:12:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:12:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 121 [2025-03-17 15:12:52,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:52,858 INFO L225 Difference]: With dead ends: 1589 [2025-03-17 15:12:52,858 INFO L226 Difference]: Without dead ends: 1588 [2025-03-17 15:12:52,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:12:52,859 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 180 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:52,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 444 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:52,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2025-03-17 15:12:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1448. [2025-03-17 15:12:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1279 states have (on average 1.2298670836591086) internal successors, (1573), 1312 states have internal predecessors, (1573), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1843 transitions. [2025-03-17 15:12:52,948 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1843 transitions. Word has length 121 [2025-03-17 15:12:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:52,948 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1843 transitions. [2025-03-17 15:12:52,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-17 15:12:52,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1843 transitions. [2025-03-17 15:12:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-17 15:12:52,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:52,949 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:52,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2025-03-17 15:12:53,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2025-03-17 15:12:53,150 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:53,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:53,150 INFO L85 PathProgramCache]: Analyzing trace with hash -781496473, now seen corresponding path program 2 times [2025-03-17 15:12:53,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:53,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427209442] [2025-03-17 15:12:53,150 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:53,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:53,154 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-03-17 15:12:53,161 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:12:53,161 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:53,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:53,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039087264] [2025-03-17 15:12:53,161 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:12:53,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:53,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:53,163 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:53,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2025-03-17 15:12:53,184 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-03-17 15:12:53,200 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:12:53,200 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:12:53,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:53,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:12:53,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-17 15:12:53,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:53,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:53,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427209442] [2025-03-17 15:12:53,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:53,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039087264] [2025-03-17 15:12:53,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039087264] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:53,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:53,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:12:53,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047026216] [2025-03-17 15:12:53,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:53,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:12:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:53,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:12:53,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:12:53,579 INFO L87 Difference]: Start difference. First operand 1448 states and 1843 transitions. Second operand has 9 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-17 15:12:53,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:53,963 INFO L93 Difference]: Finished difference Result 1912 states and 2432 transitions. [2025-03-17 15:12:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:12:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 129 [2025-03-17 15:12:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:53,965 INFO L225 Difference]: With dead ends: 1912 [2025-03-17 15:12:53,965 INFO L226 Difference]: Without dead ends: 1910 [2025-03-17 15:12:53,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:12:53,966 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 281 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:53,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 460 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:12:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2025-03-17 15:12:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1481. [2025-03-17 15:12:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1309 states have (on average 1.2307104660045836) internal successors, (1611), 1342 states have internal predecessors, (1611), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 132 states have call predecessors, (138), 138 states have call successors, (138) [2025-03-17 15:12:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1887 transitions. [2025-03-17 15:12:54,066 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1887 transitions. Word has length 129 [2025-03-17 15:12:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:54,066 INFO L471 AbstractCegarLoop]: Abstraction has 1481 states and 1887 transitions. [2025-03-17 15:12:54,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-17 15:12:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1887 transitions. [2025-03-17 15:12:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 15:12:54,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:54,067 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-17 15:12:54,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:54,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2025-03-17 15:12:54,267 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:54,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1773836904, now seen corresponding path program 1 times [2025-03-17 15:12:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:54,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774764240] [2025-03-17 15:12:54,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:54,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-17 15:12:54,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 15:12:54,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:54,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:54,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814788818] [2025-03-17 15:12:54,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:54,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:54,278 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:54,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2025-03-17 15:12:54,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-17 15:12:54,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 15:12:54,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:54,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:54,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:12:54,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-03-17 15:12:54,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:55,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774764240] [2025-03-17 15:12:55,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814788818] [2025-03-17 15:12:55,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814788818] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:55,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:55,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-17 15:12:55,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378896533] [2025-03-17 15:12:55,047 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:55,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:12:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:55,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:12:55,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:12:55,048 INFO L87 Difference]: Start difference. First operand 1481 states and 1887 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:12:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:55,667 INFO L93 Difference]: Finished difference Result 1614 states and 2052 transitions. [2025-03-17 15:12:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:12:55,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 132 [2025-03-17 15:12:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:55,669 INFO L225 Difference]: With dead ends: 1614 [2025-03-17 15:12:55,669 INFO L226 Difference]: Without dead ends: 1613 [2025-03-17 15:12:55,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:12:55,670 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 193 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:55,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 435 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:12:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2025-03-17 15:12:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1481. [2025-03-17 15:12:55,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1309 states have (on average 1.2299465240641712) internal successors, (1610), 1342 states have internal predecessors, (1610), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 132 states have call predecessors, (138), 138 states have call successors, (138) [2025-03-17 15:12:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1886 transitions. [2025-03-17 15:12:55,768 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1886 transitions. Word has length 132 [2025-03-17 15:12:55,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:55,768 INFO L471 AbstractCegarLoop]: Abstraction has 1481 states and 1886 transitions. [2025-03-17 15:12:55,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:12:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1886 transitions. [2025-03-17 15:12:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-17 15:12:55,769 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:55,769 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:55,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:55,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2025-03-17 15:12:55,970 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:55,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash 845630882, now seen corresponding path program 1 times [2025-03-17 15:12:55,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:55,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778424236] [2025-03-17 15:12:55,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:55,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:55,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 15:12:55,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:12:55,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:55,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:12:55,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459175811] [2025-03-17 15:12:55,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:55,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:55,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:55,981 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:55,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2025-03-17 15:12:56,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 15:12:56,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:12:56,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:56,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:56,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-17 15:12:56,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 21 proven. 73 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-03-17 15:12:56,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:56,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:56,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778424236] [2025-03-17 15:12:56,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:12:56,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459175811] [2025-03-17 15:12:56,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459175811] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:56,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:56,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:12:56,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887564448] [2025-03-17 15:12:56,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:56,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:12:56,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:56,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:12:56,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:12:56,615 INFO L87 Difference]: Start difference. First operand 1481 states and 1886 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:12:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:57,676 INFO L93 Difference]: Finished difference Result 1621 states and 2061 transitions. [2025-03-17 15:12:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 15:12:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 133 [2025-03-17 15:12:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:57,678 INFO L225 Difference]: With dead ends: 1621 [2025-03-17 15:12:57,678 INFO L226 Difference]: Without dead ends: 1617 [2025-03-17 15:12:57,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:12:57,679 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 169 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:57,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 635 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 15:12:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-03-17 15:12:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1457. [2025-03-17 15:12:57,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1288 states have (on average 1.2298136645962734) internal successors, (1584), 1320 states have internal predecessors, (1584), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:12:57,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1854 transitions. [2025-03-17 15:12:57,788 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1854 transitions. Word has length 133 [2025-03-17 15:12:57,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:57,788 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 1854 transitions. [2025-03-17 15:12:57,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:12:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1854 transitions. [2025-03-17 15:12:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 15:12:57,790 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:57,790 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:57,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:57,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2025-03-17 15:12:57,990 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:57,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:57,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1754813111, now seen corresponding path program 1 times [2025-03-17 15:12:57,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:57,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655993787] [2025-03-17 15:12:57,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:57,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:57,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:12:57,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:12:57,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:57,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2025-03-17 15:12:58,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655993787] [2025-03-17 15:12:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655993787] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099754482] [2025-03-17 15:12:58,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:58,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:58,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:58,064 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:58,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2025-03-17 15:12:58,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:12:58,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:12:58,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:58,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:58,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:58,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-17 15:12:58,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:12:58,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099754482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:12:58,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:12:58,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 15:12:58,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531427860] [2025-03-17 15:12:58,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:12:58,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:12:58,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:58,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:12:58,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:58,368 INFO L87 Difference]: Start difference. First operand 1457 states and 1854 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:12:58,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:58,605 INFO L93 Difference]: Finished difference Result 1530 states and 1937 transitions. [2025-03-17 15:12:58,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:12:58,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2025-03-17 15:12:58,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:58,607 INFO L225 Difference]: With dead ends: 1530 [2025-03-17 15:12:58,607 INFO L226 Difference]: Without dead ends: 1529 [2025-03-17 15:12:58,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:12:58,608 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:58,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:12:58,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2025-03-17 15:12:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1528. [2025-03-17 15:12:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1349 states have (on average 1.2194217939214234) internal successors, (1645), 1384 states have internal predecessors, (1645), 145 states have call successors, (145), 6 states have call predecessors, (145), 6 states have return successors, (145), 137 states have call predecessors, (145), 145 states have call successors, (145) [2025-03-17 15:12:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1935 transitions. [2025-03-17 15:12:58,717 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1935 transitions. Word has length 135 [2025-03-17 15:12:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:58,717 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 1935 transitions. [2025-03-17 15:12:58,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:12:58,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1935 transitions. [2025-03-17 15:12:58,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 15:12:58,717 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:58,718 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:58,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:58,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2025-03-17 15:12:58,918 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:58,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash -845167432, now seen corresponding path program 1 times [2025-03-17 15:12:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:58,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002441701] [2025-03-17 15:12:58,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:58,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:12:58,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:12:58,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:58,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-17 15:12:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:58,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002441701] [2025-03-17 15:12:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002441701] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:58,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964324466] [2025-03-17 15:12:58,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:58,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:58,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:58,987 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:58,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2025-03-17 15:12:59,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:12:59,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:12:59,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:59,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:59,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:12:59,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:12:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-17 15:12:59,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:12:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-17 15:12:59,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964324466] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:12:59,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:12:59,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-17 15:12:59,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518216235] [2025-03-17 15:12:59,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:12:59,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:12:59,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:12:59,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:12:59,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:12:59,163 INFO L87 Difference]: Start difference. First operand 1528 states and 1935 transitions. Second operand has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2025-03-17 15:12:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:12:59,632 INFO L93 Difference]: Finished difference Result 1546 states and 1953 transitions. [2025-03-17 15:12:59,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:12:59,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 135 [2025-03-17 15:12:59,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:12:59,634 INFO L225 Difference]: With dead ends: 1546 [2025-03-17 15:12:59,634 INFO L226 Difference]: Without dead ends: 1392 [2025-03-17 15:12:59,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:12:59,635 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 69 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:12:59,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 185 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:12:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2025-03-17 15:12:59,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1374. [2025-03-17 15:12:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1216 states have (on average 1.230263157894737) internal successors, (1496), 1245 states have internal predecessors, (1496), 124 states have call successors, (124), 6 states have call predecessors, (124), 6 states have return successors, (124), 122 states have call predecessors, (124), 124 states have call successors, (124) [2025-03-17 15:12:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1744 transitions. [2025-03-17 15:12:59,724 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1744 transitions. Word has length 135 [2025-03-17 15:12:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:12:59,724 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1744 transitions. [2025-03-17 15:12:59,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2025-03-17 15:12:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1744 transitions. [2025-03-17 15:12:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-03-17 15:12:59,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:12:59,725 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:12:59,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2025-03-17 15:12:59,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2025-03-17 15:12:59,926 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:12:59,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:12:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1855716182, now seen corresponding path program 1 times [2025-03-17 15:12:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:12:59,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442382525] [2025-03-17 15:12:59,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:12:59,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-03-17 15:12:59,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 15:12:59,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:12:59,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:12:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:12:59,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:12:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442382525] [2025-03-17 15:12:59,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442382525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:12:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849748919] [2025-03-17 15:12:59,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:12:59,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:12:59,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:12:59,996 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:12:59,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2025-03-17 15:13:00,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-03-17 15:13:00,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 15:13:00,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:00,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:00,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:13:00,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:00,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:00,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849748919] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:13:00,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:13:00,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2025-03-17 15:13:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223911325] [2025-03-17 15:13:00,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:00,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:13:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:00,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:13:00,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:13:00,397 INFO L87 Difference]: Start difference. First operand 1374 states and 1744 transitions. Second operand has 15 states, 14 states have (on average 19.285714285714285) internal successors, (270), 15 states have internal predecessors, (270), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2025-03-17 15:13:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:01,437 INFO L93 Difference]: Finished difference Result 1942 states and 2432 transitions. [2025-03-17 15:13:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-17 15:13:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 19.285714285714285) internal successors, (270), 15 states have internal predecessors, (270), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) Word has length 143 [2025-03-17 15:13:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:01,448 INFO L225 Difference]: With dead ends: 1942 [2025-03-17 15:13:01,448 INFO L226 Difference]: Without dead ends: 1940 [2025-03-17 15:13:01,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=477, Invalid=1329, Unknown=0, NotChecked=0, Total=1806 [2025-03-17 15:13:01,449 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1574 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:01,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1102 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 15:13:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2025-03-17 15:13:01,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1618. [2025-03-17 15:13:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1439 states have (on average 1.2397498262682418) internal successors, (1784), 1468 states have internal predecessors, (1784), 145 states have call successors, (145), 6 states have call predecessors, (145), 6 states have return successors, (145), 143 states have call predecessors, (145), 145 states have call successors, (145) [2025-03-17 15:13:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2074 transitions. [2025-03-17 15:13:01,570 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2074 transitions. Word has length 143 [2025-03-17 15:13:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:01,570 INFO L471 AbstractCegarLoop]: Abstraction has 1618 states and 2074 transitions. [2025-03-17 15:13:01,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 19.285714285714285) internal successors, (270), 15 states have internal predecessors, (270), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2025-03-17 15:13:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2074 transitions. [2025-03-17 15:13:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-03-17 15:13:01,571 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:01,571 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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] [2025-03-17 15:13:01,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:01,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:01,771 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:01,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1863936855, now seen corresponding path program 1 times [2025-03-17 15:13:01,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:01,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250433559] [2025-03-17 15:13:01,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:01,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-17 15:13:01,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-17 15:13:01,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:01,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:01,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250433559] [2025-03-17 15:13:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250433559] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667899514] [2025-03-17 15:13:01,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:01,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:01,862 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:01,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2025-03-17 15:13:01,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-17 15:13:01,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-17 15:13:01,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:01,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:01,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:13:01,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:02,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:02,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667899514] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:13:02,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:13:02,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:13:02,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920962970] [2025-03-17 15:13:02,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:02,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:13:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:02,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:13:02,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:13:02,202 INFO L87 Difference]: Start difference. First operand 1618 states and 2074 transitions. Second operand has 11 states, 10 states have (on average 27.4) internal successors, (274), 11 states have internal predecessors, (274), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-17 15:13:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:02,824 INFO L93 Difference]: Finished difference Result 2606 states and 3372 transitions. [2025-03-17 15:13:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:13:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.4) internal successors, (274), 11 states have internal predecessors, (274), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 145 [2025-03-17 15:13:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:02,827 INFO L225 Difference]: With dead ends: 2606 [2025-03-17 15:13:02,827 INFO L226 Difference]: Without dead ends: 2604 [2025-03-17 15:13:02,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:13:02,828 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 427 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:02,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 581 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:13:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2025-03-17 15:13:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2063. [2025-03-17 15:13:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 1845 states have (on average 1.2482384823848238) internal successors, (2303), 1874 states have internal predecessors, (2303), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2025-03-17 15:13:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 2671 transitions. [2025-03-17 15:13:02,964 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 2671 transitions. Word has length 145 [2025-03-17 15:13:02,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:02,964 INFO L471 AbstractCegarLoop]: Abstraction has 2063 states and 2671 transitions. [2025-03-17 15:13:02,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.4) internal successors, (274), 11 states have internal predecessors, (274), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-17 15:13:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 2671 transitions. [2025-03-17 15:13:02,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-17 15:13:02,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:02,965 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:02,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:03,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:03,165 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:03,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash -508315321, now seen corresponding path program 1 times [2025-03-17 15:13:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370932032] [2025-03-17 15:13:03,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:03,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:03,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-17 15:13:03,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-17 15:13:03,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:03,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:03,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:03,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370932032] [2025-03-17 15:13:03,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370932032] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:03,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982634908] [2025-03-17 15:13:03,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:03,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:03,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:03,235 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:03,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2025-03-17 15:13:03,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-17 15:13:03,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-17 15:13:03,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:03,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:03,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:13:03,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:03,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:03,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982634908] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:13:03,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:13:03,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:13:03,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440736838] [2025-03-17 15:13:03,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:03,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:13:03,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:03,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:13:03,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:13:03,599 INFO L87 Difference]: Start difference. First operand 2063 states and 2671 transitions. Second operand has 11 states, 10 states have (on average 28.0) internal successors, (280), 11 states have internal predecessors, (280), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-17 15:13:04,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:04,190 INFO L93 Difference]: Finished difference Result 2998 states and 3883 transitions. [2025-03-17 15:13:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:13:04,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 28.0) internal successors, (280), 11 states have internal predecessors, (280), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 147 [2025-03-17 15:13:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:04,193 INFO L225 Difference]: With dead ends: 2998 [2025-03-17 15:13:04,193 INFO L226 Difference]: Without dead ends: 2996 [2025-03-17 15:13:04,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:13:04,194 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 348 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:04,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 591 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:13:04,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2025-03-17 15:13:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2410. [2025-03-17 15:13:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 2165 states have (on average 1.2443418013856813) internal successors, (2694), 2194 states have internal predecessors, (2694), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 209 states have call predecessors, (211), 211 states have call successors, (211) [2025-03-17 15:13:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3116 transitions. [2025-03-17 15:13:04,351 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3116 transitions. Word has length 147 [2025-03-17 15:13:04,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:04,351 INFO L471 AbstractCegarLoop]: Abstraction has 2410 states and 3116 transitions. [2025-03-17 15:13:04,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 28.0) internal successors, (280), 11 states have internal predecessors, (280), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-17 15:13:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3116 transitions. [2025-03-17 15:13:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:13:04,352 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:04,352 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:04,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:04,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:04,553 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:04,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1280710017, now seen corresponding path program 3 times [2025-03-17 15:13:04,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:04,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921940389] [2025-03-17 15:13:04,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:04,557 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:04,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:04,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 15:13:04,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290903290] [2025-03-17 15:13:04,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:04,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:04,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:04,569 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:04,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2025-03-17 15:13:04,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:04,615 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 120 of 153 statements. [2025-03-17 15:13:04,616 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 15:13:04,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:04,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 15:13:04,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:05,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:05,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:05,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921940389] [2025-03-17 15:13:05,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:05,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290903290] [2025-03-17 15:13:05,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290903290] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:13:05,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:13:05,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2025-03-17 15:13:05,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565751981] [2025-03-17 15:13:05,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:05,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:13:05,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:05,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:13:05,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:13:05,623 INFO L87 Difference]: Start difference. First operand 2410 states and 3116 transitions. Second operand has 13 states, 12 states have (on average 16.75) internal successors, (201), 13 states have internal predecessors, (201), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:13:07,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:13:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:11,522 INFO L93 Difference]: Finished difference Result 2544 states and 3274 transitions. [2025-03-17 15:13:11,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:13:11,522 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.75) internal successors, (201), 13 states have internal predecessors, (201), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 153 [2025-03-17 15:13:11,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:11,524 INFO L225 Difference]: With dead ends: 2544 [2025-03-17 15:13:11,525 INFO L226 Difference]: Without dead ends: 2542 [2025-03-17 15:13:11,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:13:11,525 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 359 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:11,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 862 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-03-17 15:13:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2025-03-17 15:13:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2470. [2025-03-17 15:13:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.240432237730752) internal successors, (2755), 2251 states have internal predecessors, (2755), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3185 transitions. [2025-03-17 15:13:11,688 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3185 transitions. Word has length 153 [2025-03-17 15:13:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:11,689 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3185 transitions. [2025-03-17 15:13:11,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.75) internal successors, (201), 13 states have internal predecessors, (201), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-17 15:13:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3185 transitions. [2025-03-17 15:13:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:13:11,690 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:11,690 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:11,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2025-03-17 15:13:11,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:11,891 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:11,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1823052513, now seen corresponding path program 4 times [2025-03-17 15:13:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403158854] [2025-03-17 15:13:11,891 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:13:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:11,895 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 153 statements into 2 equivalence classes. [2025-03-17 15:13:11,901 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:11,901 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:13:11,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:11,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938497431] [2025-03-17 15:13:11,902 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:13:11,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:11,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:11,904 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:11,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2025-03-17 15:13:11,929 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 153 statements into 2 equivalence classes. [2025-03-17 15:13:11,974 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:11,974 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:13:11,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:11,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-17 15:13:11,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 24 proven. 105 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-03-17 15:13:12,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:13,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403158854] [2025-03-17 15:13:13,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938497431] [2025-03-17 15:13:13,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938497431] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:13,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-03-17 15:13:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000648033] [2025-03-17 15:13:13,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:13,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:13:13,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:13,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:13:13,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:13:13,110 INFO L87 Difference]: Start difference. First operand 2470 states and 3185 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:14,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:14,340 INFO L93 Difference]: Finished difference Result 2496 states and 3212 transitions. [2025-03-17 15:13:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 15:13:14,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2025-03-17 15:13:14,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:14,343 INFO L225 Difference]: With dead ends: 2496 [2025-03-17 15:13:14,343 INFO L226 Difference]: Without dead ends: 2495 [2025-03-17 15:13:14,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:13:14,344 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 64 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:14,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 661 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 15:13:14,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2025-03-17 15:13:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2470. [2025-03-17 15:13:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.239981990094552) internal successors, (2754), 2251 states have internal predecessors, (2754), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3184 transitions. [2025-03-17 15:13:14,519 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3184 transitions. Word has length 153 [2025-03-17 15:13:14,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:14,519 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3184 transitions. [2025-03-17 15:13:14,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3184 transitions. [2025-03-17 15:13:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:13:14,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:14,520 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:14,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:14,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2025-03-17 15:13:14,720 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:14,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash -985604543, now seen corresponding path program 5 times [2025-03-17 15:13:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:14,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077071810] [2025-03-17 15:13:14,721 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:13:14,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:14,725 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:14,732 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:14,732 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 15:13:14,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:14,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718846238] [2025-03-17 15:13:14,733 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:13:14,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:14,734 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:14,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2025-03-17 15:13:14,756 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:14,858 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:14,858 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 15:13:14,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:14,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:13:14,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:15,200 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:15,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:15,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077071810] [2025-03-17 15:13:15,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:15,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718846238] [2025-03-17 15:13:15,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718846238] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:15,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:15,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:13:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735155936] [2025-03-17 15:13:15,347 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:15,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:13:15,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:15,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:13:15,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:13:15,348 INFO L87 Difference]: Start difference. First operand 2470 states and 3184 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:15,789 INFO L93 Difference]: Finished difference Result 2500 states and 3216 transitions. [2025-03-17 15:13:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:13:15,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2025-03-17 15:13:15,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:15,792 INFO L225 Difference]: With dead ends: 2500 [2025-03-17 15:13:15,792 INFO L226 Difference]: Without dead ends: 2499 [2025-03-17 15:13:15,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:13:15,793 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 142 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:15,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 306 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:13:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2025-03-17 15:13:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2470. [2025-03-17 15:13:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.239531742458352) internal successors, (2753), 2251 states have internal predecessors, (2753), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:15,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3183 transitions. [2025-03-17 15:13:15,967 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3183 transitions. Word has length 153 [2025-03-17 15:13:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:15,967 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3183 transitions. [2025-03-17 15:13:15,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3183 transitions. [2025-03-17 15:13:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:13:15,968 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:15,968 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:15,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2025-03-17 15:13:16,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2025-03-17 15:13:16,168 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:16,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash -892376766, now seen corresponding path program 6 times [2025-03-17 15:13:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:16,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465840759] [2025-03-17 15:13:16,169 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:13:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:16,174 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:16,205 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:16,206 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-03-17 15:13:16,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:16,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589500043] [2025-03-17 15:13:16,206 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:13:16,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:16,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:16,216 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:16,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2025-03-17 15:13:16,274 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 153 statements into 6 equivalence classes. [2025-03-17 15:13:16,387 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:16,387 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-03-17 15:13:16,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:16,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 15:13:16,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:16,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:16,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465840759] [2025-03-17 15:13:16,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589500043] [2025-03-17 15:13:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589500043] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:16,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:16,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:13:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430651592] [2025-03-17 15:13:16,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:16,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:13:16,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:16,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:13:16,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:13:16,900 INFO L87 Difference]: Start difference. First operand 2470 states and 3183 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:17,461 INFO L93 Difference]: Finished difference Result 2508 states and 3224 transitions. [2025-03-17 15:13:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:13:17,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2025-03-17 15:13:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:17,463 INFO L225 Difference]: With dead ends: 2508 [2025-03-17 15:13:17,463 INFO L226 Difference]: Without dead ends: 2507 [2025-03-17 15:13:17,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:13:17,464 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 85 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:17,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 459 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:13:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2025-03-17 15:13:17,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2470. [2025-03-17 15:13:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2390814948221522) internal successors, (2752), 2251 states have internal predecessors, (2752), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3182 transitions. [2025-03-17 15:13:17,633 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3182 transitions. Word has length 153 [2025-03-17 15:13:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:17,633 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3182 transitions. [2025-03-17 15:13:17,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:17,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3182 transitions. [2025-03-17 15:13:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:13:17,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:17,633 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:17,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2025-03-17 15:13:17,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:17,834 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:17,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash 298828000, now seen corresponding path program 7 times [2025-03-17 15:13:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:17,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275844170] [2025-03-17 15:13:17,834 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 15:13:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:17,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 15:13:17,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:17,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:17,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:17,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582540142] [2025-03-17 15:13:17,844 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 15:13:17,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:17,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:17,846 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:17,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2025-03-17 15:13:17,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 15:13:17,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:13:17,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:17,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:17,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 15:13:17,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-17 15:13:18,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:18,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275844170] [2025-03-17 15:13:18,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582540142] [2025-03-17 15:13:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582540142] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:18,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 15:13:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947097040] [2025-03-17 15:13:18,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:18,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:13:18,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:18,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:13:18,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:13:18,497 INFO L87 Difference]: Start difference. First operand 2470 states and 3182 transitions. Second operand has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-17 15:13:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:19,063 INFO L93 Difference]: Finished difference Result 2520 states and 3240 transitions. [2025-03-17 15:13:19,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:13:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 153 [2025-03-17 15:13:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:19,065 INFO L225 Difference]: With dead ends: 2520 [2025-03-17 15:13:19,065 INFO L226 Difference]: Without dead ends: 2519 [2025-03-17 15:13:19,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:13:19,066 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 348 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:19,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 402 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:13:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2025-03-17 15:13:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2470. [2025-03-17 15:13:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2386312471859522) internal successors, (2751), 2251 states have internal predecessors, (2751), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3181 transitions. [2025-03-17 15:13:19,229 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3181 transitions. Word has length 153 [2025-03-17 15:13:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:19,229 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3181 transitions. [2025-03-17 15:13:19,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-17 15:13:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3181 transitions. [2025-03-17 15:13:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-17 15:13:19,229 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:19,230 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:19,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:19,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:19,430 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1893284801, now seen corresponding path program 3 times [2025-03-17 15:13:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210546961] [2025-03-17 15:13:19,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:19,434 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 155 statements into 6 equivalence classes. [2025-03-17 15:13:19,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 15:13:19,441 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 15:13:19,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:19,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004525308] [2025-03-17 15:13:19,442 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:19,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:19,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:19,443 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:19,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2025-03-17 15:13:19,465 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 155 statements into 6 equivalence classes. [2025-03-17 15:13:19,485 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 122 of 155 statements. [2025-03-17 15:13:19,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 15:13:19,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:19,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:13:19,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 87 proven. 24 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:19,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:20,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210546961] [2025-03-17 15:13:20,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004525308] [2025-03-17 15:13:20,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004525308] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:20,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:20,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:13:20,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263270176] [2025-03-17 15:13:20,253 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:20,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:13:20,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:20,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:13:20,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:13:20,254 INFO L87 Difference]: Start difference. First operand 2470 states and 3181 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:21,069 INFO L93 Difference]: Finished difference Result 2548 states and 3274 transitions. [2025-03-17 15:13:21,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:13:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2025-03-17 15:13:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:21,072 INFO L225 Difference]: With dead ends: 2548 [2025-03-17 15:13:21,072 INFO L226 Difference]: Without dead ends: 2547 [2025-03-17 15:13:21,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:13:21,073 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 161 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:21,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 534 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 15:13:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2025-03-17 15:13:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2470. [2025-03-17 15:13:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2377307519135525) internal successors, (2749), 2251 states have internal predecessors, (2749), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3179 transitions. [2025-03-17 15:13:21,250 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3179 transitions. Word has length 155 [2025-03-17 15:13:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:21,250 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3179 transitions. [2025-03-17 15:13:21,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3179 transitions. [2025-03-17 15:13:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-17 15:13:21,251 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:21,251 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:21,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:21,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2025-03-17 15:13:21,451 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:21,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash -209224930, now seen corresponding path program 4 times [2025-03-17 15:13:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:21,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502441662] [2025-03-17 15:13:21,452 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:13:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:21,455 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 155 statements into 2 equivalence classes. [2025-03-17 15:13:21,461 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 15:13:21,461 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:13:21,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:21,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677701134] [2025-03-17 15:13:21,462 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:13:21,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:21,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:21,464 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:21,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2025-03-17 15:13:21,485 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 155 statements into 2 equivalence classes. [2025-03-17 15:13:21,509 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 15:13:21,510 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:13:21,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:21,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:13:21,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:21,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:23,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:23,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502441662] [2025-03-17 15:13:23,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:23,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677701134] [2025-03-17 15:13:23,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677701134] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:23,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:23,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:13:23,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256430810] [2025-03-17 15:13:23,543 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:23,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:13:23,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:23,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:13:23,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2025-03-17 15:13:23,543 INFO L87 Difference]: Start difference. First operand 2470 states and 3179 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:23,944 INFO L93 Difference]: Finished difference Result 2504 states and 3217 transitions. [2025-03-17 15:13:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:13:23,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2025-03-17 15:13:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:23,947 INFO L225 Difference]: With dead ends: 2504 [2025-03-17 15:13:23,947 INFO L226 Difference]: Without dead ends: 2503 [2025-03-17 15:13:23,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2025-03-17 15:13:23,948 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 95 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:23,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 405 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:13:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2025-03-17 15:13:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2470. [2025-03-17 15:13:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2372805042773525) internal successors, (2748), 2251 states have internal predecessors, (2748), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3178 transitions. [2025-03-17 15:13:24,113 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3178 transitions. Word has length 155 [2025-03-17 15:13:24,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:24,113 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3178 transitions. [2025-03-17 15:13:24,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:24,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3178 transitions. [2025-03-17 15:13:24,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-17 15:13:24,114 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:24,114 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:24,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:24,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2025-03-17 15:13:24,314 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:24,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:24,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1419389888, now seen corresponding path program 5 times [2025-03-17 15:13:24,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:24,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307729109] [2025-03-17 15:13:24,315 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:13:24,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:24,318 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 6 equivalence classes. [2025-03-17 15:13:24,328 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 15:13:24,331 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 15:13:24,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:24,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27665456] [2025-03-17 15:13:24,332 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:13:24,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:24,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:24,335 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:24,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2025-03-17 15:13:24,363 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 6 equivalence classes. [2025-03-17 15:13:24,412 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 155 of 155 statements. [2025-03-17 15:13:24,412 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 15:13:24,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:24,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:13:24,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:13:24,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:24,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307729109] [2025-03-17 15:13:24,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27665456] [2025-03-17 15:13:24,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27665456] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:24,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:24,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:13:24,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244021815] [2025-03-17 15:13:24,834 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:24,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:13:24,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:24,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:13:24,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:13:24,834 INFO L87 Difference]: Start difference. First operand 2470 states and 3178 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:25,310 INFO L93 Difference]: Finished difference Result 2508 states and 3221 transitions. [2025-03-17 15:13:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:13:25,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2025-03-17 15:13:25,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:25,313 INFO L225 Difference]: With dead ends: 2508 [2025-03-17 15:13:25,313 INFO L226 Difference]: Without dead ends: 2507 [2025-03-17 15:13:25,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:13:25,314 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 99 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:25,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 431 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:13:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2025-03-17 15:13:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2470. [2025-03-17 15:13:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2368302566411526) internal successors, (2747), 2251 states have internal predecessors, (2747), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3177 transitions. [2025-03-17 15:13:25,529 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3177 transitions. Word has length 155 [2025-03-17 15:13:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:25,529 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3177 transitions. [2025-03-17 15:13:25,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:13:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3177 transitions. [2025-03-17 15:13:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 15:13:25,530 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:25,530 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:25,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2025-03-17 15:13:25,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:25,730 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:25,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:25,731 INFO L85 PathProgramCache]: Analyzing trace with hash 599705503, now seen corresponding path program 3 times [2025-03-17 15:13:25,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:25,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714514920] [2025-03-17 15:13:25,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:25,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:25,734 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 6 equivalence classes. [2025-03-17 15:13:25,743 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 15:13:25,743 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 15:13:25,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:25,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195154459] [2025-03-17 15:13:25,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:13:25,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:25,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:25,746 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:25,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2025-03-17 15:13:25,768 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 6 equivalence classes. [2025-03-17 15:13:25,791 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 130 of 163 statements. [2025-03-17 15:13:25,791 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 15:13:25,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:25,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:13:25,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-03-17 15:13:26,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:27,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714514920] [2025-03-17 15:13:27,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195154459] [2025-03-17 15:13:27,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195154459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:27,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:27,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-17 15:13:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184178807] [2025-03-17 15:13:27,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:27,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:13:27,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:27,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:13:27,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=91, Unknown=1, NotChecked=0, Total=132 [2025-03-17 15:13:27,917 INFO L87 Difference]: Start difference. First operand 2470 states and 3177 transitions. Second operand has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-17 15:13:28,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:28,456 INFO L93 Difference]: Finished difference Result 3017 states and 3873 transitions. [2025-03-17 15:13:28,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:13:28,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2025-03-17 15:13:28,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:28,460 INFO L225 Difference]: With dead ends: 3017 [2025-03-17 15:13:28,460 INFO L226 Difference]: Without dead ends: 3015 [2025-03-17 15:13:28,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=121, Unknown=1, NotChecked=0, Total=182 [2025-03-17 15:13:28,461 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 384 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:28,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 575 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:13:28,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2025-03-17 15:13:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2470. [2025-03-17 15:13:28,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.235479513732553) internal successors, (2744), 2251 states have internal predecessors, (2744), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3174 transitions. [2025-03-17 15:13:28,635 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3174 transitions. Word has length 163 [2025-03-17 15:13:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:28,635 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3174 transitions. [2025-03-17 15:13:28,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-17 15:13:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3174 transitions. [2025-03-17 15:13:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 15:13:28,636 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:28,636 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:28,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2025-03-17 15:13:28,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2025-03-17 15:13:28,836 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:28,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:28,837 INFO L85 PathProgramCache]: Analyzing trace with hash -156881026, now seen corresponding path program 1 times [2025-03-17 15:13:28,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:28,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540704626] [2025-03-17 15:13:28,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:28,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:28,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 15:13:28,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 15:13:28,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:28,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:28,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1247874591] [2025-03-17 15:13:28,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:28,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:28,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:28,848 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:28,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2025-03-17 15:13:28,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 15:13:28,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 15:13:28,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:28,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:28,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:13:28,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-03-17 15:13:29,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540704626] [2025-03-17 15:13:29,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247874591] [2025-03-17 15:13:29,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247874591] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:29,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:29,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-17 15:13:29,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700186769] [2025-03-17 15:13:29,512 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:29,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:13:29,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:29,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:13:29,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:13:29,513 INFO L87 Difference]: Start difference. First operand 2470 states and 3174 transitions. Second operand has 11 states, 10 states have (on average 10.9) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-17 15:13:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:30,135 INFO L93 Difference]: Finished difference Result 2699 states and 3469 transitions. [2025-03-17 15:13:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:13:30,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2025-03-17 15:13:30,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:30,138 INFO L225 Difference]: With dead ends: 2699 [2025-03-17 15:13:30,138 INFO L226 Difference]: Without dead ends: 2698 [2025-03-17 15:13:30,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:13:30,138 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 175 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:30,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 429 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:13:30,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2025-03-17 15:13:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2470. [2025-03-17 15:13:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2221 states have (on average 1.2350292660963529) internal successors, (2743), 2251 states have internal predecessors, (2743), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-17 15:13:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3173 transitions. [2025-03-17 15:13:30,325 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3173 transitions. Word has length 163 [2025-03-17 15:13:30,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:30,325 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3173 transitions. [2025-03-17 15:13:30,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-17 15:13:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3173 transitions. [2025-03-17 15:13:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-03-17 15:13:30,326 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:30,326 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:30,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2025-03-17 15:13:30,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:30,526 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:30,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:30,527 INFO L85 PathProgramCache]: Analyzing trace with hash -403126271, now seen corresponding path program 1 times [2025-03-17 15:13:30,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:30,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167173073] [2025-03-17 15:13:30,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:30,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:30,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-03-17 15:13:30,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-03-17 15:13:30,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:30,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-03-17 15:13:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167173073] [2025-03-17 15:13:30,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167173073] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5164456] [2025-03-17 15:13:30,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:13:30,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:30,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:30,609 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:30,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2025-03-17 15:13:30,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-03-17 15:13:30,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-03-17 15:13:30,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:13:30,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:30,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:13:30,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-03-17 15:13:30,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2025-03-17 15:13:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5164456] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:13:30,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:13:30,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-03-17 15:13:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805028790] [2025-03-17 15:13:30,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:30,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:13:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:30,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:13:30,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:13:30,819 INFO L87 Difference]: Start difference. First operand 2470 states and 3173 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-17 15:13:31,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:13:31,347 INFO L93 Difference]: Finished difference Result 2480 states and 3182 transitions. [2025-03-17 15:13:31,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:13:31,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 166 [2025-03-17 15:13:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:13:31,349 INFO L225 Difference]: With dead ends: 2480 [2025-03-17 15:13:31,349 INFO L226 Difference]: Without dead ends: 2446 [2025-03-17 15:13:31,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:13:31,350 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 64 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:13:31,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 119 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:13:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2025-03-17 15:13:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2442. [2025-03-17 15:13:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2197 states have (on average 1.2294037323623122) internal successors, (2701), 2226 states have internal predecessors, (2701), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 209 states have call predecessors, (211), 211 states have call successors, (211) [2025-03-17 15:13:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3123 transitions. [2025-03-17 15:13:31,517 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3123 transitions. Word has length 166 [2025-03-17 15:13:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:13:31,517 INFO L471 AbstractCegarLoop]: Abstraction has 2442 states and 3123 transitions. [2025-03-17 15:13:31,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-17 15:13:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3123 transitions. [2025-03-17 15:13:31,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-03-17 15:13:31,518 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:13:31,518 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:13:31,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2025-03-17 15:13:31,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:31,719 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-17 15:13:31,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:13:31,719 INFO L85 PathProgramCache]: Analyzing trace with hash -718151123, now seen corresponding path program 2 times [2025-03-17 15:13:31,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:13:31,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664736890] [2025-03-17 15:13:31,719 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:13:31,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:13:31,723 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 166 statements into 2 equivalence classes. [2025-03-17 15:13:31,728 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 166 of 166 statements. [2025-03-17 15:13:31,728 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:13:31,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:13:31,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125007933] [2025-03-17 15:13:31,729 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:13:31,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:13:31,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:13:31,731 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:13:31,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2025-03-17 15:13:31,754 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 166 statements into 2 equivalence classes. [2025-03-17 15:13:31,779 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 166 of 166 statements. [2025-03-17 15:13:31,780 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:13:31,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:13:31,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:13:31,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:13:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-03-17 15:13:32,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:13:32,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:13:32,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664736890] [2025-03-17 15:13:32,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:13:32,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125007933] [2025-03-17 15:13:32,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125007933] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:13:32,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:13:32,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:13:32,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061934082] [2025-03-17 15:13:32,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:13:32,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:13:32,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:13:32,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:13:32,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:13:32,598 INFO L87 Difference]: Start difference. First operand 2442 states and 3123 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12)