./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.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/hard-ll_unwindbound5.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 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:26:11,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:26:11,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:26:11,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:26:11,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:26:11,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:26:11,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:26:11,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:26:11,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:26:11,349 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:26:11,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:26:11,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:26:11,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:26:11,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:26:11,350 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:26:11,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:26:11,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:26:11,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:26:11,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:26:11,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:26:11,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:26:11,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:26:11,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:26:11,354 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 -> 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe [2025-03-17 15:26:11,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:26:11,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:26:11,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:26:11,584 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:26:11,584 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:26:11,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c [2025-03-17 15:26:12,694 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be27c70c/bbf339968ad64e34b1da9111cf3fcec0/FLAGb25f8fd95 [2025-03-17 15:26:12,905 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:26:12,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c [2025-03-17 15:26:12,915 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be27c70c/bbf339968ad64e34b1da9111cf3fcec0/FLAGb25f8fd95 [2025-03-17 15:26:13,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be27c70c/bbf339968ad64e34b1da9111cf3fcec0 [2025-03-17 15:26:13,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:26:13,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:26:13,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:26:13,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:26:13,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:26:13,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d08bdda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13, skipping insertion in model container [2025-03-17 15:26:13,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:26:13,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:26:13,418 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:26:13,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:26:13,447 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:26:13,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13 WrapperNode [2025-03-17 15:26:13,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:26:13,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:26:13,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:26:13,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:26:13,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,476 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2025-03-17 15:26:13,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:26:13,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:26:13,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:26:13,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:26:13,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,500 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 15:26:13,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,502 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:26:13,505 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:26:13,505 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:26:13,505 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:26:13,506 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (1/1) ... [2025-03-17 15:26:13,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:26:13,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:13,537 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 15:26:13,539 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 15:26:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:26:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:26:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:26:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:26:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:26:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:26:13,599 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:26:13,600 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:26:13,835 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-03-17 15:26:13,835 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:26:13,845 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:26:13,846 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:26:13,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:26:13 BoogieIcfgContainer [2025-03-17 15:26:13,846 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:26:13,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:26:13,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:26:13,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:26:13,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:26:13" (1/3) ... [2025-03-17 15:26:13,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c01f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:26:13, skipping insertion in model container [2025-03-17 15:26:13,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:26:13" (2/3) ... [2025-03-17 15:26:13,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c01f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:26:13, skipping insertion in model container [2025-03-17 15:26:13,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:26:13" (3/3) ... [2025-03-17 15:26:13,855 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound5.c [2025-03-17 15:26:13,865 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:26:13,868 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_unwindbound5.c that has 2 procedures, 80 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2025-03-17 15:26:13,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:26:13,921 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;@767003df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:26:13,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-17 15:26:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 71 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:26:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:26:13,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:13,930 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:26:13,931 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:13,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:13,935 INFO L85 PathProgramCache]: Analyzing trace with hash 105895021, now seen corresponding path program 1 times [2025-03-17 15:26:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:13,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375928772] [2025-03-17 15:26:13,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:13,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:26:13,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:26:13,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:13,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:26:14,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:14,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375928772] [2025-03-17 15:26:14,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375928772] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:14,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:14,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518402786] [2025-03-17 15:26:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:14,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:14,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:14,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:14,081 INFO L87 Difference]: Start difference. First operand has 80 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 71 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:26:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:14,139 INFO L93 Difference]: Finished difference Result 166 states and 202 transitions. [2025-03-17 15:26:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:26:14,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-17 15:26:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:14,144 INFO L225 Difference]: With dead ends: 166 [2025-03-17 15:26:14,145 INFO L226 Difference]: Without dead ends: 83 [2025-03-17 15:26:14,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 15:26:14,148 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:14,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 220 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-17 15:26:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2025-03-17 15:26:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:26:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2025-03-17 15:26:14,176 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 5 [2025-03-17 15:26:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:14,176 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2025-03-17 15:26:14,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:26:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2025-03-17 15:26:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:26:14,176 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:14,176 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:26:14,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:26:14,177 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:14,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:14,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1012221603, now seen corresponding path program 1 times [2025-03-17 15:26:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:14,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586297911] [2025-03-17 15:26:14,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:14,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:26:14,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:26:14,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:14,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:26:14,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:14,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586297911] [2025-03-17 15:26:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586297911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526058314] [2025-03-17 15:26:14,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:14,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:14,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:14,234 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:26:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:14,271 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2025-03-17 15:26:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 15:26:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:14,273 INFO L225 Difference]: With dead ends: 133 [2025-03-17 15:26:14,273 INFO L226 Difference]: Without dead ends: 82 [2025-03-17 15:26:14,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 15:26:14,274 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 3 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:14,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 227 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-17 15:26:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-17 15:26:14,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 74 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:26:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2025-03-17 15:26:14,280 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 6 [2025-03-17 15:26:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:14,280 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2025-03-17 15:26:14,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:26:14,280 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2025-03-17 15:26:14,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-17 15:26:14,280 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:14,280 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:14,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:26:14,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:14,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:14,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1489077219, now seen corresponding path program 1 times [2025-03-17 15:26:14,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:14,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509586622] [2025-03-17 15:26:14,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:14,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 15:26:14,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 15:26:14,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:14,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132970718] [2025-03-17 15:26:14,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:14,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:14,310 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 15:26:14,311 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 15:26:14,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 15:26:14,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 15:26:14,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:14,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:14,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:26:14,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:14,377 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 15:26:14,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:14,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:14,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509586622] [2025-03-17 15:26:14,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:14,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132970718] [2025-03-17 15:26:14,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132970718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:14,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:14,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189541286] [2025-03-17 15:26:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:14,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:26:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:14,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:26:14,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:26:14,379 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15:26:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:14,432 INFO L93 Difference]: Finished difference Result 175 states and 194 transitions. [2025-03-17 15:26:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:26:14,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 18 [2025-03-17 15:26:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:14,433 INFO L225 Difference]: With dead ends: 175 [2025-03-17 15:26:14,433 INFO L226 Difference]: Without dead ends: 121 [2025-03-17 15:26:14,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 15:26:14,434 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 33 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:14,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 133 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-17 15:26:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 105. [2025-03-17 15:26:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 66 states have (on average 1.621212121212121) internal successors, (107), 92 states have internal predecessors, (107), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:26:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2025-03-17 15:26:14,454 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 18 [2025-03-17 15:26:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:14,454 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2025-03-17 15:26:14,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15:26:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2025-03-17 15:26:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-17 15:26:14,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:14,455 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:14,461 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 15:26:14,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:14,656 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:14,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 370016290, now seen corresponding path program 1 times [2025-03-17 15:26:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:14,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178400211] [2025-03-17 15:26:14,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:14,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 15:26:14,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 15:26:14,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:14,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178400211] [2025-03-17 15:26:14,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178400211] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:14,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:14,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955189158] [2025-03-17 15:26:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:14,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:26:14,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:14,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:26:14,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:26:14,752 INFO L87 Difference]: Start difference. First operand 105 states and 127 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:14,800 INFO L93 Difference]: Finished difference Result 105 states and 127 transitions. [2025-03-17 15:26:14,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:26:14,801 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2025-03-17 15:26:14,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:14,802 INFO L225 Difference]: With dead ends: 105 [2025-03-17 15:26:14,802 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 15:26:14,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:26:14,804 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 47 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:14,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 68 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 15:26:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-03-17 15:26:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.5757575757575757) internal successors, (104), 90 states have internal predecessors, (104), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:26:14,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 124 transitions. [2025-03-17 15:26:14,816 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 124 transitions. Word has length 26 [2025-03-17 15:26:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:14,817 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 124 transitions. [2025-03-17 15:26:14,817 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:14,818 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 124 transitions. [2025-03-17 15:26:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:26:14,818 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:14,818 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:14,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:26:14,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:14,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1414398088, now seen corresponding path program 1 times [2025-03-17 15:26:14,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:14,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380216896] [2025-03-17 15:26:14,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:14,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:26:14,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:26:14,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:14,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:14,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380216896] [2025-03-17 15:26:14,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380216896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:14,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:14,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:26:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844682623] [2025-03-17 15:26:14,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:14,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:26:14,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:14,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:26:14,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:14,924 INFO L87 Difference]: Start difference. First operand 103 states and 124 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:14,977 INFO L93 Difference]: Finished difference Result 103 states and 124 transitions. [2025-03-17 15:26:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:26:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2025-03-17 15:26:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:14,978 INFO L225 Difference]: With dead ends: 103 [2025-03-17 15:26:14,978 INFO L226 Difference]: Without dead ends: 102 [2025-03-17 15:26:14,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:26:14,979 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 72 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:14,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 201 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:14,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-17 15:26:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2025-03-17 15:26:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.5454545454545454) internal successors, (102), 89 states have internal predecessors, (102), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:26:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2025-03-17 15:26:14,993 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 27 [2025-03-17 15:26:14,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:14,993 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2025-03-17 15:26:14,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2025-03-17 15:26:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:26:14,994 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:14,994 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:14,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:26:14,994 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:14,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1414396871, now seen corresponding path program 1 times [2025-03-17 15:26:14,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:14,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193894811] [2025-03-17 15:26:14,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:14,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:15,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:26:15,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:26:15,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193894811] [2025-03-17 15:26:15,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193894811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:15,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:15,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105143328] [2025-03-17 15:26:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:26:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:15,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:26:15,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:26:15,042 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:15,079 INFO L93 Difference]: Finished difference Result 112 states and 129 transitions. [2025-03-17 15:26:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:26:15,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2025-03-17 15:26:15,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:15,080 INFO L225 Difference]: With dead ends: 112 [2025-03-17 15:26:15,080 INFO L226 Difference]: Without dead ends: 111 [2025-03-17 15:26:15,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:26:15,081 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:15,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 124 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2025-03-17 15:26:15,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102. [2025-03-17 15:26:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.5303030303030303) internal successors, (101), 89 states have internal predecessors, (101), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:26:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2025-03-17 15:26:15,088 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 27 [2025-03-17 15:26:15,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:15,089 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2025-03-17 15:26:15,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,089 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2025-03-17 15:26:15,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 15:26:15,089 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:15,089 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:15,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 15:26:15,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:15,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:15,090 INFO L85 PathProgramCache]: Analyzing trace with hash -896667751, now seen corresponding path program 1 times [2025-03-17 15:26:15,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939550089] [2025-03-17 15:26:15,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:15,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:26:15,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:26:15,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:15,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939550089] [2025-03-17 15:26:15,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939550089] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:15,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:15,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:26:15,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329458777] [2025-03-17 15:26:15,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:15,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:26:15,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:15,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:26:15,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:15,151 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:15,213 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2025-03-17 15:26:15,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:26:15,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2025-03-17 15:26:15,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:15,214 INFO L225 Difference]: With dead ends: 119 [2025-03-17 15:26:15,214 INFO L226 Difference]: Without dead ends: 110 [2025-03-17 15:26:15,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:26:15,215 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 22 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:15,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 291 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-17 15:26:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2025-03-17 15:26:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 92 states have internal predecessors, (102), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:26:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2025-03-17 15:26:15,220 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 28 [2025-03-17 15:26:15,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:15,220 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2025-03-17 15:26:15,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2025-03-17 15:26:15,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:26:15,221 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:15,221 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:15,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:26:15,221 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:15,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1590718263, now seen corresponding path program 1 times [2025-03-17 15:26:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018847735] [2025-03-17 15:26:15,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:15,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:26:15,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:26:15,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:15,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125041501] [2025-03-17 15:26:15,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:15,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:15,239 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 15:26:15,241 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 15:26:15,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:26:15,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:26:15,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:26:15,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018847735] [2025-03-17 15:26:15,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125041501] [2025-03-17 15:26:15,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125041501] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:15,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:15,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:15,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119108153] [2025-03-17 15:26:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:15,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:26:15,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:15,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:26:15,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:26:15,305 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:15,358 INFO L93 Difference]: Finished difference Result 144 states and 170 transitions. [2025-03-17 15:26:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:26:15,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2025-03-17 15:26:15,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:15,359 INFO L225 Difference]: With dead ends: 144 [2025-03-17 15:26:15,359 INFO L226 Difference]: Without dead ends: 140 [2025-03-17 15:26:15,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 15:26:15,359 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:15,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 100 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-03-17 15:26:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 126. [2025-03-17 15:26:15,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 87 states have (on average 1.4827586206896552) internal successors, (129), 110 states have internal predecessors, (129), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:26:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 153 transitions. [2025-03-17 15:26:15,370 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 153 transitions. Word has length 30 [2025-03-17 15:26:15,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:15,370 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 153 transitions. [2025-03-17 15:26:15,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 153 transitions. [2025-03-17 15:26:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:26:15,371 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:15,371 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:15,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:26:15,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-17 15:26:15,575 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:15,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash -328106283, now seen corresponding path program 1 times [2025-03-17 15:26:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:15,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627006396] [2025-03-17 15:26:15,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:15,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:26:15,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:26:15,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:15,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627006396] [2025-03-17 15:26:15,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627006396] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:15,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:15,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:26:15,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667818216] [2025-03-17 15:26:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:15,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:15,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:15,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:15,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:15,626 INFO L87 Difference]: Start difference. First operand 126 states and 153 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:15,796 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2025-03-17 15:26:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2025-03-17 15:26:15,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:15,797 INFO L225 Difference]: With dead ends: 150 [2025-03-17 15:26:15,797 INFO L226 Difference]: Without dead ends: 149 [2025-03-17 15:26:15,797 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 15:26:15,798 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:15,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 110 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2025-03-17 15:26:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 133. [2025-03-17 15:26:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 117 states have internal predecessors, (138), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:26:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 162 transitions. [2025-03-17 15:26:15,808 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 162 transitions. Word has length 32 [2025-03-17 15:26:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:15,809 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 162 transitions. [2025-03-17 15:26:15,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 162 transitions. [2025-03-17 15:26:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:26:15,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:15,809 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:15,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 15:26:15,809 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:15,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:15,810 INFO L85 PathProgramCache]: Analyzing trace with hash 161491381, now seen corresponding path program 1 times [2025-03-17 15:26:15,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:15,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735229502] [2025-03-17 15:26:15,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:15,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:26:15,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:26:15,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735229502] [2025-03-17 15:26:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735229502] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240483706] [2025-03-17 15:26:15,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:15,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:15,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:15,864 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 15:26:15,866 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 15:26:15,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:26:15,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:26:15,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:15,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:15,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:26:15,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:15,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240483706] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:16,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:26:16,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2025-03-17 15:26:16,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982625145] [2025-03-17 15:26:16,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:16,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:26:16,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:16,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:26:16,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:26:16,021 INFO L87 Difference]: Start difference. First operand 133 states and 162 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-17 15:26:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:16,165 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2025-03-17 15:26:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:26:16,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 32 [2025-03-17 15:26:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:16,167 INFO L225 Difference]: With dead ends: 266 [2025-03-17 15:26:16,167 INFO L226 Difference]: Without dead ends: 190 [2025-03-17 15:26:16,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:26:16,168 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 75 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:16,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 381 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-03-17 15:26:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 172. [2025-03-17 15:26:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 125 states have (on average 1.456) internal successors, (182), 148 states have internal predecessors, (182), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 15:26:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 218 transitions. [2025-03-17 15:26:16,201 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 218 transitions. Word has length 32 [2025-03-17 15:26:16,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:16,201 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 218 transitions. [2025-03-17 15:26:16,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-17 15:26:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 218 transitions. [2025-03-17 15:26:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 15:26:16,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:16,201 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:16,210 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 15:26:16,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:16,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:16,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1581360174, now seen corresponding path program 1 times [2025-03-17 15:26:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:16,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120358721] [2025-03-17 15:26:16,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:16,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:26:16,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:26:16,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:16,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:16,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036741552] [2025-03-17 15:26:16,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:16,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:16,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:16,415 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 15:26:16,417 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 15:26:16,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:26:16,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:26:16,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:16,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:16,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:26:16,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:26:16,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:16,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:16,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120358721] [2025-03-17 15:26:16,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:16,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036741552] [2025-03-17 15:26:16,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036741552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:16,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:16,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:26:16,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974295978] [2025-03-17 15:26:16,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:16,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:16,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:16,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:16,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:16,549 INFO L87 Difference]: Start difference. First operand 172 states and 218 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:16,690 INFO L93 Difference]: Finished difference Result 178 states and 223 transitions. [2025-03-17 15:26:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:26:16,692 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2025-03-17 15:26:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:16,693 INFO L225 Difference]: With dead ends: 178 [2025-03-17 15:26:16,693 INFO L226 Difference]: Without dead ends: 175 [2025-03-17 15:26:16,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 15:26:16,694 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 24 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:16,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 136 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:16,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-17 15:26:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-17 15:26:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 128 states have (on average 1.4375) internal successors, (184), 151 states have internal predecessors, (184), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 15:26:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 220 transitions. [2025-03-17 15:26:16,712 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 220 transitions. Word has length 33 [2025-03-17 15:26:16,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:16,712 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 220 transitions. [2025-03-17 15:26:16,712 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:26:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 220 transitions. [2025-03-17 15:26:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 15:26:16,713 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:16,713 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:16,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:16,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:16,914 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:16,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:16,914 INFO L85 PathProgramCache]: Analyzing trace with hash -174708619, now seen corresponding path program 1 times [2025-03-17 15:26:16,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:16,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203425804] [2025-03-17 15:26:16,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:16,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:16,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:26:16,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:26:16,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:16,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735967485] [2025-03-17 15:26:16,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:16,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:16,927 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 15:26:16,929 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 15:26:16,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:26:16,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:26:16,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:16,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:16,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:26:16,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 15:26:16,999 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:16,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:16,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203425804] [2025-03-17 15:26:16,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:16,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735967485] [2025-03-17 15:26:16,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735967485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:16,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:16,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:26:16,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695226727] [2025-03-17 15:26:16,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:16,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:16,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:17,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:17,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:17,000 INFO L87 Difference]: Start difference. First operand 175 states and 220 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, (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 15:26:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:17,060 INFO L93 Difference]: Finished difference Result 212 states and 260 transitions. [2025-03-17 15:26:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:26:17,060 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, (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 44 [2025-03-17 15:26:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:17,061 INFO L225 Difference]: With dead ends: 212 [2025-03-17 15:26:17,061 INFO L226 Difference]: Without dead ends: 202 [2025-03-17 15:26:17,061 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 15:26:17,062 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 82 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:17,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 142 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:17,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-03-17 15:26:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 184. [2025-03-17 15:26:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 139 states have (on average 1.3597122302158273) internal successors, (189), 158 states have internal predecessors, (189), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:26:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 229 transitions. [2025-03-17 15:26:17,079 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 229 transitions. Word has length 44 [2025-03-17 15:26:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:17,079 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 229 transitions. [2025-03-17 15:26:17,079 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, (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 15:26:17,079 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 229 transitions. [2025-03-17 15:26:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 15:26:17,081 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:17,081 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:17,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:26:17,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 15:26:17,282 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:17,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1120999859, now seen corresponding path program 1 times [2025-03-17 15:26:17,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:17,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645625846] [2025-03-17 15:26:17,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:17,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:17,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:26:17,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:26:17,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:17,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:17,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534995886] [2025-03-17 15:26:17,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:17,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:17,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:17,298 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 15:26:17,302 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 15:26:17,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:26:17,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:26:17,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:17,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:17,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:26:17,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 15:26:17,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:17,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645625846] [2025-03-17 15:26:17,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534995886] [2025-03-17 15:26:17,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534995886] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:17,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-17 15:26:17,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556513232] [2025-03-17 15:26:17,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:17,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:17,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:17,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:17,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:26:17,449 INFO L87 Difference]: Start difference. First operand 184 states and 229 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, (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 15:26:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:17,527 INFO L93 Difference]: Finished difference Result 280 states and 346 transitions. [2025-03-17 15:26:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:26:17,527 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, (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 45 [2025-03-17 15:26:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:17,529 INFO L225 Difference]: With dead ends: 280 [2025-03-17 15:26:17,529 INFO L226 Difference]: Without dead ends: 276 [2025-03-17 15:26:17,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:26:17,529 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 67 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:17,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 209 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-03-17 15:26:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 244. [2025-03-17 15:26:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 193 states have (on average 1.383419689119171) internal successors, (267), 212 states have internal predecessors, (267), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 15:26:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 319 transitions. [2025-03-17 15:26:17,545 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 319 transitions. Word has length 45 [2025-03-17 15:26:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:17,546 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 319 transitions. [2025-03-17 15:26:17,546 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, (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 15:26:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 319 transitions. [2025-03-17 15:26:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-17 15:26:17,546 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:17,546 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:26:17,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:26:17,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:17,747 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:17,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -280837318, now seen corresponding path program 1 times [2025-03-17 15:26:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339174076] [2025-03-17 15:26:17,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:17,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 15:26:17,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 15:26:17,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:17,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 15:26:17,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:17,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339174076] [2025-03-17 15:26:17,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339174076] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:17,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:17,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:26:17,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836830577] [2025-03-17 15:26:17,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:17,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:17,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:17,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:17,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:26:17,816 INFO L87 Difference]: Start difference. First operand 244 states and 319 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 15:26:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:17,941 INFO L93 Difference]: Finished difference Result 255 states and 330 transitions. [2025-03-17 15:26:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:17,942 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), 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 49 [2025-03-17 15:26:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:17,943 INFO L225 Difference]: With dead ends: 255 [2025-03-17 15:26:17,943 INFO L226 Difference]: Without dead ends: 238 [2025-03-17 15:26:17,943 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 15:26:17,943 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 51 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:17,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 131 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-03-17 15:26:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 229. [2025-03-17 15:26:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 180 states have (on average 1.4055555555555554) internal successors, (253), 199 states have internal predecessors, (253), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-17 15:26:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 301 transitions. [2025-03-17 15:26:17,961 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 301 transitions. Word has length 49 [2025-03-17 15:26:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:17,962 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 301 transitions. [2025-03-17 15:26:17,962 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), 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 15:26:17,962 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 301 transitions. [2025-03-17 15:26:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 15:26:17,962 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:17,962 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:17,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 15:26:17,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:17,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:17,963 INFO L85 PathProgramCache]: Analyzing trace with hash -528827679, now seen corresponding path program 1 times [2025-03-17 15:26:17,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:17,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321786432] [2025-03-17 15:26:17,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:17,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:17,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 15:26:17,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 15:26:17,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:17,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:18,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321786432] [2025-03-17 15:26:18,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321786432] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:18,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397224776] [2025-03-17 15:26:18,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:18,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:18,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:18,043 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 15:26:18,044 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 15:26:18,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 15:26:18,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 15:26:18,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:18,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:18,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:26:18,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:18,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:18,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397224776] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:18,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:26:18,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 15:26:18,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240522816] [2025-03-17 15:26:18,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:18,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:26:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:18,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:26:18,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:18,172 INFO L87 Difference]: Start difference. First operand 229 states and 301 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:26:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:18,290 INFO L93 Difference]: Finished difference Result 363 states and 467 transitions. [2025-03-17 15:26:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:26:18,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 53 [2025-03-17 15:26:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:18,292 INFO L225 Difference]: With dead ends: 363 [2025-03-17 15:26:18,292 INFO L226 Difference]: Without dead ends: 361 [2025-03-17 15:26:18,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:18,293 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:18,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 235 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2025-03-17 15:26:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 298. [2025-03-17 15:26:18,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 240 states have (on average 1.4208333333333334) internal successors, (341), 259 states have internal predecessors, (341), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 15:26:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 407 transitions. [2025-03-17 15:26:18,314 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 407 transitions. Word has length 53 [2025-03-17 15:26:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:18,314 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 407 transitions. [2025-03-17 15:26:18,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:26:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 407 transitions. [2025-03-17 15:26:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-17 15:26:18,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:18,315 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 15:26:18,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:18,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:18,516 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:18,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 786173425, now seen corresponding path program 1 times [2025-03-17 15:26:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:18,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000921248] [2025-03-17 15:26:18,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:18,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:18,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 15:26:18,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 15:26:18,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:18,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:18,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000921248] [2025-03-17 15:26:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000921248] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779459581] [2025-03-17 15:26:18,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:18,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:18,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:18,607 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 15:26:18,608 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 15:26:18,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 15:26:18,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 15:26:18,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:18,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:18,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:26:18,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:26:18,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:18,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779459581] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:18,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:26:18,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2025-03-17 15:26:18,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971289999] [2025-03-17 15:26:18,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:18,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:26:18,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:18,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:26:18,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:26:18,792 INFO L87 Difference]: Start difference. First operand 298 states and 407 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:26:19,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:19,000 INFO L93 Difference]: Finished difference Result 345 states and 450 transitions. [2025-03-17 15:26:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 15:26:19,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 54 [2025-03-17 15:26:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:19,004 INFO L225 Difference]: With dead ends: 345 [2025-03-17 15:26:19,004 INFO L226 Difference]: Without dead ends: 339 [2025-03-17 15:26:19,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2025-03-17 15:26:19,004 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 130 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:19,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 489 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2025-03-17 15:26:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 321. [2025-03-17 15:26:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 261 states have (on average 1.3946360153256705) internal successors, (364), 280 states have internal predecessors, (364), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 15:26:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 430 transitions. [2025-03-17 15:26:19,023 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 430 transitions. Word has length 54 [2025-03-17 15:26:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:19,023 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 430 transitions. [2025-03-17 15:26:19,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:26:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 430 transitions. [2025-03-17 15:26:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-17 15:26:19,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:19,024 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-03-17 15:26:19,030 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 15:26:19,224 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,SelfDestructingSolverStorable15 [2025-03-17 15:26:19,224 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:19,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2051181446, now seen corresponding path program 1 times [2025-03-17 15:26:19,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:19,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883254648] [2025-03-17 15:26:19,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:19,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:19,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 15:26:19,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 15:26:19,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:19,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736562843] [2025-03-17 15:26:19,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:19,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:19,237 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 15:26:19,238 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 15:26:19,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 15:26:19,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 15:26:19,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:19,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:19,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:26:19,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:19,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:19,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:19,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883254648] [2025-03-17 15:26:19,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:19,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736562843] [2025-03-17 15:26:19,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736562843] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:19,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:26:19,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:26:19,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802203745] [2025-03-17 15:26:19,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:19,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:26:19,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:19,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:26:19,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:26:19,509 INFO L87 Difference]: Start difference. First operand 321 states and 430 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:26:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:19,948 INFO L93 Difference]: Finished difference Result 366 states and 485 transitions. [2025-03-17 15:26:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:26:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 59 [2025-03-17 15:26:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:19,952 INFO L225 Difference]: With dead ends: 366 [2025-03-17 15:26:19,952 INFO L226 Difference]: Without dead ends: 360 [2025-03-17 15:26:19,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:26:19,953 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 246 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:19,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 209 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:26:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-17 15:26:19,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2025-03-17 15:26:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 264 states have (on average 1.3598484848484849) internal successors, (359), 283 states have internal predecessors, (359), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 15:26:19,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 425 transitions. [2025-03-17 15:26:19,974 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 425 transitions. Word has length 59 [2025-03-17 15:26:19,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:19,975 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 425 transitions. [2025-03-17 15:26:19,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:26:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 425 transitions. [2025-03-17 15:26:19,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 15:26:19,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:19,976 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 15:26:19,982 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 15:26:20,176 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,SelfDestructingSolverStorable16 [2025-03-17 15:26:20,177 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:20,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1055280331, now seen corresponding path program 1 times [2025-03-17 15:26:20,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:20,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13398646] [2025-03-17 15:26:20,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:20,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:20,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:26:20,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:26:20,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:20,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:20,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:20,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13398646] [2025-03-17 15:26:20,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13398646] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:20,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693636581] [2025-03-17 15:26:20,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:20,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:20,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:20,262 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 15:26:20,263 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 15:26:20,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 15:26:20,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:26:20,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:20,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:20,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:26:20,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:26:20,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:26:20,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693636581] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:20,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:26:20,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 12 [2025-03-17 15:26:20,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321825321] [2025-03-17 15:26:20,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:20,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:26:20,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:20,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:26:20,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:26:20,457 INFO L87 Difference]: Start difference. First operand 324 states and 425 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:26:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:20,609 INFO L93 Difference]: Finished difference Result 487 states and 639 transitions. [2025-03-17 15:26:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:26:20,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 67 [2025-03-17 15:26:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:20,610 INFO L225 Difference]: With dead ends: 487 [2025-03-17 15:26:20,611 INFO L226 Difference]: Without dead ends: 337 [2025-03-17 15:26:20,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:26:20,612 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 63 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:20,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 440 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-03-17 15:26:20,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 330. [2025-03-17 15:26:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 270 states have (on average 1.348148148148148) internal successors, (364), 289 states have internal predecessors, (364), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 15:26:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 430 transitions. [2025-03-17 15:26:20,633 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 430 transitions. Word has length 67 [2025-03-17 15:26:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:20,633 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 430 transitions. [2025-03-17 15:26:20,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:26:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 430 transitions. [2025-03-17 15:26:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 15:26:20,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:20,633 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:26:20,639 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 15:26:20,834 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,SelfDestructingSolverStorable17 [2025-03-17 15:26:20,834 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:20,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:20,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1766212341, now seen corresponding path program 2 times [2025-03-17 15:26:20,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:20,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512271370] [2025-03-17 15:26:20,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:26:20,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:20,844 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-17 15:26:20,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:26:20,856 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:26:20,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:20,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563124148] [2025-03-17 15:26:20,856 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:26:20,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:20,864 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 15:26:20,869 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 15:26:20,892 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-17 15:26:20,906 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:26:20,907 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:26:20,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:20,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:26:20,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:20,956 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:20,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:20,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:20,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512271370] [2025-03-17 15:26:20,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:20,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563124148] [2025-03-17 15:26:20,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563124148] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:20,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:20,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:26:20,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408096059] [2025-03-17 15:26:20,997 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:20,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:26:20,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:20,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:26:20,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:20,997 INFO L87 Difference]: Start difference. First operand 330 states and 430 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 15:26:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:21,083 INFO L93 Difference]: Finished difference Result 479 states and 614 transitions. [2025-03-17 15:26:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:21,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 71 [2025-03-17 15:26:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:21,098 INFO L225 Difference]: With dead ends: 479 [2025-03-17 15:26:21,098 INFO L226 Difference]: Without dead ends: 475 [2025-03-17 15:26:21,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:21,099 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:21,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 192 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2025-03-17 15:26:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 361. [2025-03-17 15:26:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 297 states have (on average 1.3265993265993266) internal successors, (394), 316 states have internal predecessors, (394), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2025-03-17 15:26:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 468 transitions. [2025-03-17 15:26:21,120 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 468 transitions. Word has length 71 [2025-03-17 15:26:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:21,121 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 468 transitions. [2025-03-17 15:26:21,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 15:26:21,121 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 468 transitions. [2025-03-17 15:26:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-17 15:26:21,123 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:21,124 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:21,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 15:26:21,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:21,328 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:21,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:21,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1389263330, now seen corresponding path program 1 times [2025-03-17 15:26:21,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:21,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956073064] [2025-03-17 15:26:21,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:21,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 15:26:21,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 15:26:21,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:21,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:26:21,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956073064] [2025-03-17 15:26:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956073064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:21,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:26:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298574078] [2025-03-17 15:26:21,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:21,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:26:21,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:21,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:26:21,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:26:21,382 INFO L87 Difference]: Start difference. First operand 361 states and 468 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 15:26:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:21,442 INFO L93 Difference]: Finished difference Result 361 states and 468 transitions. [2025-03-17 15:26:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:26:21,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 78 [2025-03-17 15:26:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:21,444 INFO L225 Difference]: With dead ends: 361 [2025-03-17 15:26:21,444 INFO L226 Difference]: Without dead ends: 360 [2025-03-17 15:26:21,444 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 15:26:21,445 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:21,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:26:21,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-17 15:26:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2025-03-17 15:26:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 297 states have (on average 1.3131313131313131) internal successors, (390), 315 states have internal predecessors, (390), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2025-03-17 15:26:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 464 transitions. [2025-03-17 15:26:21,469 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 464 transitions. Word has length 78 [2025-03-17 15:26:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:21,470 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 464 transitions. [2025-03-17 15:26:21,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 15:26:21,470 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 464 transitions. [2025-03-17 15:26:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 15:26:21,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:21,470 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:21,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 15:26:21,470 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:21,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash 117490255, now seen corresponding path program 1 times [2025-03-17 15:26:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:21,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145585933] [2025-03-17 15:26:21,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:21,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:21,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 15:26:21,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 15:26:21,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:21,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:26:21,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:21,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145585933] [2025-03-17 15:26:21,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145585933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:21,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:21,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:26:21,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635233557] [2025-03-17 15:26:21,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:21,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:26:21,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:21,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:26:21,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:26:21,602 INFO L87 Difference]: Start difference. First operand 360 states and 464 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 15:26:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:21,836 INFO L93 Difference]: Finished difference Result 560 states and 749 transitions. [2025-03-17 15:26:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:26:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 79 [2025-03-17 15:26:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:21,839 INFO L225 Difference]: With dead ends: 560 [2025-03-17 15:26:21,839 INFO L226 Difference]: Without dead ends: 559 [2025-03-17 15:26:21,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:26:21,840 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 117 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:21,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 275 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:26:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2025-03-17 15:26:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 498. [2025-03-17 15:26:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 421 states have (on average 1.3705463182897861) internal successors, (577), 439 states have internal predecessors, (577), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-17 15:26:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 679 transitions. [2025-03-17 15:26:21,870 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 679 transitions. Word has length 79 [2025-03-17 15:26:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:21,871 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 679 transitions. [2025-03-17 15:26:21,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 15:26:21,871 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 679 transitions. [2025-03-17 15:26:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 15:26:21,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:21,871 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2025-03-17 15:26:21,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 15:26:21,871 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:21,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash -652769408, now seen corresponding path program 1 times [2025-03-17 15:26:21,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:21,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587925555] [2025-03-17 15:26:21,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:21,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 15:26:21,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:26:21,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:21,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:21,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:21,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587925555] [2025-03-17 15:26:21,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587925555] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:21,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482953144] [2025-03-17 15:26:21,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:21,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:21,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:21,992 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 15:26:21,994 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 15:26:22,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 15:26:22,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:26:22,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:22,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:22,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:26:22,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:26:22,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482953144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:22,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:22,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-17 15:26:22,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230524562] [2025-03-17 15:26:22,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:22,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:26:22,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:22,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:26:22,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:26:22,174 INFO L87 Difference]: Start difference. First operand 498 states and 679 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 15:26:22,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:22,329 INFO L93 Difference]: Finished difference Result 543 states and 728 transitions. [2025-03-17 15:26:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 80 [2025-03-17 15:26:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:22,331 INFO L225 Difference]: With dead ends: 543 [2025-03-17 15:26:22,331 INFO L226 Difference]: Without dead ends: 542 [2025-03-17 15:26:22,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:26:22,332 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 82 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:22,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 141 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2025-03-17 15:26:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 510. [2025-03-17 15:26:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 433 states have (on average 1.3602771362586605) internal successors, (589), 451 states have internal predecessors, (589), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-17 15:26:22,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 691 transitions. [2025-03-17 15:26:22,386 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 691 transitions. Word has length 80 [2025-03-17 15:26:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:22,386 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 691 transitions. [2025-03-17 15:26:22,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 15:26:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 691 transitions. [2025-03-17 15:26:22,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-17 15:26:22,387 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:22,387 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2025-03-17 15:26:22,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:22,591 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,SelfDestructingSolverStorable21 [2025-03-17 15:26:22,591 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:22,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1238984813, now seen corresponding path program 1 times [2025-03-17 15:26:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296084512] [2025-03-17 15:26:22,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:22,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 15:26:22,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 15:26:22,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:22,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:22,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:22,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296084512] [2025-03-17 15:26:22,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296084512] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:22,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848228311] [2025-03-17 15:26:22,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:22,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:22,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:22,718 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 15:26:22,720 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 15:26:22,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 15:26:22,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 15:26:22,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:22,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:22,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:26:22,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:26:22,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:26:22,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848228311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:22,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:22,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-17 15:26:22,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713111264] [2025-03-17 15:26:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:22,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:26:22,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:22,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:26:22,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:26:22,844 INFO L87 Difference]: Start difference. First operand 510 states and 691 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 15:26:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:22,979 INFO L93 Difference]: Finished difference Result 525 states and 704 transitions. [2025-03-17 15:26:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:26:22,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 81 [2025-03-17 15:26:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:22,981 INFO L225 Difference]: With dead ends: 525 [2025-03-17 15:26:22,981 INFO L226 Difference]: Without dead ends: 523 [2025-03-17 15:26:22,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:26:22,982 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 54 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:22,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 91 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-03-17 15:26:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 514. [2025-03-17 15:26:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 437 states have (on average 1.3478260869565217) internal successors, (589), 455 states have internal predecessors, (589), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-17 15:26:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 691 transitions. [2025-03-17 15:26:23,031 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 691 transitions. Word has length 81 [2025-03-17 15:26:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:23,031 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 691 transitions. [2025-03-17 15:26:23,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 15:26:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 691 transitions. [2025-03-17 15:26:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 15:26:23,031 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:23,032 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:26:23,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:23,232 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,SelfDestructingSolverStorable22 [2025-03-17 15:26:23,232 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:23,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:23,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1883264477, now seen corresponding path program 1 times [2025-03-17 15:26:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228590134] [2025-03-17 15:26:23,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:23,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:23,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 15:26:23,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:26:23,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:23,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-03-17 15:26:23,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228590134] [2025-03-17 15:26:23,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228590134] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780485071] [2025-03-17 15:26:23,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:23,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:23,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:23,337 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 15:26:23,338 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 15:26:23,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 15:26:23,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:26:23,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:23,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:23,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:26:23,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-17 15:26:23,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-03-17 15:26:23,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780485071] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:23,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:26:23,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 13 [2025-03-17 15:26:23,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298553685] [2025-03-17 15:26:23,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:23,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:26:23,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:23,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:26:23,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:26:23,544 INFO L87 Difference]: Start difference. First operand 514 states and 691 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-17 15:26:23,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:23,750 INFO L93 Difference]: Finished difference Result 550 states and 727 transitions. [2025-03-17 15:26:23,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 15:26:23,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 85 [2025-03-17 15:26:23,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:23,752 INFO L225 Difference]: With dead ends: 550 [2025-03-17 15:26:23,752 INFO L226 Difference]: Without dead ends: 538 [2025-03-17 15:26:23,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:26:23,753 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:23,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 386 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-17 15:26:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 528. [2025-03-17 15:26:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 450 states have (on average 1.3355555555555556) internal successors, (601), 468 states have internal predecessors, (601), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-17 15:26:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 703 transitions. [2025-03-17 15:26:23,785 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 703 transitions. Word has length 85 [2025-03-17 15:26:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:23,786 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 703 transitions. [2025-03-17 15:26:23,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-17 15:26:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 703 transitions. [2025-03-17 15:26:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 15:26:23,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:23,786 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:23,792 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 15:26:23,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:23,987 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:23,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 687384068, now seen corresponding path program 1 times [2025-03-17 15:26:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:23,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164543812] [2025-03-17 15:26:23,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:23,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:23,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 15:26:24,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 15:26:24,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:24,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:24,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102918581] [2025-03-17 15:26:24,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:24,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:24,007 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 15:26:24,008 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 15:26:24,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 15:26:24,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 15:26:24,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:24,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:24,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:26:24,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:24,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:24,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164543812] [2025-03-17 15:26:24,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102918581] [2025-03-17 15:26:24,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102918581] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:24,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:24,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:26:24,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398811763] [2025-03-17 15:26:24,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:24,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:26:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:24,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:26:24,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:26:24,722 INFO L87 Difference]: Start difference. First operand 528 states and 703 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 15:26:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:25,152 INFO L93 Difference]: Finished difference Result 597 states and 795 transitions. [2025-03-17 15:26:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:26:25,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 86 [2025-03-17 15:26:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:25,155 INFO L225 Difference]: With dead ends: 597 [2025-03-17 15:26:25,155 INFO L226 Difference]: Without dead ends: 596 [2025-03-17 15:26:25,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:26:25,155 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 65 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:25,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 355 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:26:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-03-17 15:26:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 568. [2025-03-17 15:26:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 486 states have (on average 1.331275720164609) internal successors, (647), 504 states have internal predecessors, (647), 55 states have call successors, (55), 8 states have call predecessors, (55), 8 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-17 15:26:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 757 transitions. [2025-03-17 15:26:25,193 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 757 transitions. Word has length 86 [2025-03-17 15:26:25,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:25,193 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 757 transitions. [2025-03-17 15:26:25,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 15:26:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 757 transitions. [2025-03-17 15:26:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-17 15:26:25,195 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:25,195 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:25,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:25,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:25,396 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:25,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash -165930361, now seen corresponding path program 1 times [2025-03-17 15:26:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:25,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573203479] [2025-03-17 15:26:25,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:25,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:25,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 15:26:25,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:26:25,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:25,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:25,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942166221] [2025-03-17 15:26:25,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:25,420 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 15:26:25,421 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 15:26:25,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 15:26:25,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:26:25,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:25,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:25,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:26:25,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:25,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:26,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:26,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573203479] [2025-03-17 15:26:26,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:26,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942166221] [2025-03-17 15:26:26,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942166221] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:26:26,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:26:26,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:26:26,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880788667] [2025-03-17 15:26:26,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:26,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:26:26,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:26,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:26:26,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:26:26,125 INFO L87 Difference]: Start difference. First operand 568 states and 757 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 15:26:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:26,378 INFO L93 Difference]: Finished difference Result 624 states and 835 transitions. [2025-03-17 15:26:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:26:26,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 87 [2025-03-17 15:26:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:26,381 INFO L225 Difference]: With dead ends: 624 [2025-03-17 15:26:26,382 INFO L226 Difference]: Without dead ends: 623 [2025-03-17 15:26:26,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:26:26,382 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 65 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:26,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 254 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:26:26,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2025-03-17 15:26:26,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 608. [2025-03-17 15:26:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 522 states have (on average 1.3275862068965518) internal successors, (693), 540 states have internal predecessors, (693), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-17 15:26:26,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 811 transitions. [2025-03-17 15:26:26,416 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 811 transitions. Word has length 87 [2025-03-17 15:26:26,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:26,416 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 811 transitions. [2025-03-17 15:26:26,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 15:26:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 811 transitions. [2025-03-17 15:26:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-17 15:26:26,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:26,417 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:26,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-17 15:26:26,617 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,SelfDestructingSolverStorable25 [2025-03-17 15:26:26,618 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:26,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash -848873886, now seen corresponding path program 1 times [2025-03-17 15:26:26,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:26,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784635037] [2025-03-17 15:26:26,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:26,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:26,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 15:26:26,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 15:26:26,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:26,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:26:26,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:26,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784635037] [2025-03-17 15:26:26,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784635037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:26:26,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:26:26,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:26:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124548857] [2025-03-17 15:26:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:26:26,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:26:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:26,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:26:26,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:26:26,681 INFO L87 Difference]: Start difference. First operand 608 states and 811 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 15:26:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:26,834 INFO L93 Difference]: Finished difference Result 613 states and 818 transitions. [2025-03-17 15:26:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:26:26,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 88 [2025-03-17 15:26:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:26,837 INFO L225 Difference]: With dead ends: 613 [2025-03-17 15:26:26,837 INFO L226 Difference]: Without dead ends: 612 [2025-03-17 15:26:26,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:26:26,838 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 89 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:26,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 108 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:26:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2025-03-17 15:26:26,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 607. [2025-03-17 15:26:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 522 states have (on average 1.3122605363984674) internal successors, (685), 539 states have internal predecessors, (685), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-17 15:26:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 803 transitions. [2025-03-17 15:26:26,867 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 803 transitions. Word has length 88 [2025-03-17 15:26:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:26,867 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 803 transitions. [2025-03-17 15:26:26,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 15:26:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 803 transitions. [2025-03-17 15:26:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 15:26:26,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:26,871 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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 15:26:26,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-17 15:26:26,871 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:26,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:26,871 INFO L85 PathProgramCache]: Analyzing trace with hash -545286683, now seen corresponding path program 1 times [2025-03-17 15:26:26,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:26,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789669646] [2025-03-17 15:26:26,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:26,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:26,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:26:26,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:26:26,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:26,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:26,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422248935] [2025-03-17 15:26:26,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:26:26,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:26,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:26,892 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 15:26:26,894 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 15:26:26,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:26:26,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:26:26,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:26:26,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:26,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:26:26,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:27,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:26:29,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:29,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789669646] [2025-03-17 15:26:29,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:29,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422248935] [2025-03-17 15:26:29,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422248935] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:29,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:26:29,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2025-03-17 15:26:29,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100371190] [2025-03-17 15:26:29,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:29,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-17 15:26:29,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:29,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-17 15:26:29,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:26:29,875 INFO L87 Difference]: Start difference. First operand 607 states and 803 transitions. Second operand has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-17 15:26:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:26:34,421 INFO L93 Difference]: Finished difference Result 776 states and 1035 transitions. [2025-03-17 15:26:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-17 15:26:34,422 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 89 [2025-03-17 15:26:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:26:34,424 INFO L225 Difference]: With dead ends: 776 [2025-03-17 15:26:34,424 INFO L226 Difference]: Without dead ends: 626 [2025-03-17 15:26:34,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=376, Invalid=814, Unknown=0, NotChecked=0, Total=1190 [2025-03-17 15:26:34,425 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 311 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:26:34,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 390 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-17 15:26:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2025-03-17 15:26:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 562. [2025-03-17 15:26:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 483 states have (on average 1.3250517598343685) internal successors, (640), 500 states have internal predecessors, (640), 53 states have call successors, (53), 8 states have call predecessors, (53), 8 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-17 15:26:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 746 transitions. [2025-03-17 15:26:34,469 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 746 transitions. Word has length 89 [2025-03-17 15:26:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:26:34,469 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 746 transitions. [2025-03-17 15:26:34,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-17 15:26:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 746 transitions. [2025-03-17 15:26:34,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-17 15:26:34,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:26:34,470 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 15:26:34,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 15:26:34,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-17 15:26:34,671 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:26:34,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:26:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1440062877, now seen corresponding path program 3 times [2025-03-17 15:26:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:26:34,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-03-17 15:26:34,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:26:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:26:34,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 97 statements into 6 equivalence classes. [2025-03-17 15:26:34,692 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 97 of 97 statements. [2025-03-17 15:26:34,692 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 15:26:34,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:26:34,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700576969] [2025-03-17 15:26:34,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:26:34,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:26:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:26:34,697 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 15:26:34,698 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 15:26:34,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 97 statements into 6 equivalence classes. [2025-03-17 15:26:34,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 54 of 97 statements. [2025-03-17 15:26:34,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 15:26:34,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:26:34,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:26:34,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:26:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2025-03-17 15:26:34,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:26:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 58 proven. 6 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-03-17 15:26:35,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:26:35,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-03-17 15:26:35,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:26:35,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700576969] [2025-03-17 15:26:35,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700576969] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:26:35,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:26:35,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2025-03-17 15:26:35,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760485467] [2025-03-17 15:26:35,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:26:35,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:26:35,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:26:35,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:26:35,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:26:35,071 INFO L87 Difference]: Start difference. First operand 562 states and 746 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:26:39,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:26:43,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:26:47,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:26:51,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:26:56,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:00,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:04,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:08,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:12,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:16,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:27:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:16,746 INFO L93 Difference]: Finished difference Result 747 states and 975 transitions. [2025-03-17 15:27:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:27:16,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2025-03-17 15:27:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:16,748 INFO L225 Difference]: With dead ends: 747 [2025-03-17 15:27:16,748 INFO L226 Difference]: Without dead ends: 733 [2025-03-17 15:27:16,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:27:16,749 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 257 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 41 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:16,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 434 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 583 Invalid, 10 Unknown, 0 Unchecked, 41.5s Time] [2025-03-17 15:27:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2025-03-17 15:27:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 667. [2025-03-17 15:27:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 576 states have (on average 1.2881944444444444) internal successors, (742), 591 states have internal predecessors, (742), 67 states have call successors, (67), 8 states have call predecessors, (67), 8 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-17 15:27:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 876 transitions. [2025-03-17 15:27:16,787 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 876 transitions. Word has length 97 [2025-03-17 15:27:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:16,787 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 876 transitions. [2025-03-17 15:27:16,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:27:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 876 transitions. [2025-03-17 15:27:16,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-17 15:27:16,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:16,788 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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 15:27:16,794 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 15:27:16,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-17 15:27:16,989 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:16,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:16,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1617806865, now seen corresponding path program 1 times [2025-03-17 15:27:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:16,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188252816] [2025-03-17 15:27:16,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:16,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:16,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-17 15:27:17,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 15:27:17,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:17,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:17,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111579627] [2025-03-17 15:27:17,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:17,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:17,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:17,007 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 15:27:17,009 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 15:27:17,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-17 15:27:17,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 15:27:17,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:17,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:17,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:27:17,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 15:27:17,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188252816] [2025-03-17 15:27:17,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111579627] [2025-03-17 15:27:17,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111579627] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:17,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:17,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:27:17,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925332734] [2025-03-17 15:27:17,841 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:17,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:27:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:17,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:27:17,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:27:17,842 INFO L87 Difference]: Start difference. First operand 667 states and 876 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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 15:27:18,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:18,105 INFO L93 Difference]: Finished difference Result 672 states and 883 transitions. [2025-03-17 15:27:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:27:18,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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 103 [2025-03-17 15:27:18,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:18,108 INFO L225 Difference]: With dead ends: 672 [2025-03-17 15:27:18,108 INFO L226 Difference]: Without dead ends: 671 [2025-03-17 15:27:18,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:27:18,108 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 26 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:18,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 350 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:27:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2025-03-17 15:27:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 668. [2025-03-17 15:27:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 577 states have (on average 1.2876949740034662) internal successors, (743), 592 states have internal predecessors, (743), 67 states have call successors, (67), 8 states have call predecessors, (67), 8 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-17 15:27:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 877 transitions. [2025-03-17 15:27:18,145 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 877 transitions. Word has length 103 [2025-03-17 15:27:18,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:18,146 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 877 transitions. [2025-03-17 15:27:18,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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 15:27:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 877 transitions. [2025-03-17 15:27:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-17 15:27:18,147 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:18,147 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-03-17 15:27:18,153 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 15:27:18,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:18,348 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:18,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1387594714, now seen corresponding path program 1 times [2025-03-17 15:27:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:18,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089918908] [2025-03-17 15:27:18,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:18,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:27:18,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:27:18,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:18,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:18,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51636460] [2025-03-17 15:27:18,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:18,369 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 15:27:18,370 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 15:27:18,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:27:18,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:27:18,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:18,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:18,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-17 15:27:18,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-17 15:27:18,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:19,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:19,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089918908] [2025-03-17 15:27:19,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:19,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51636460] [2025-03-17 15:27:19,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51636460] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:19,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:19,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 15:27:19,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102358772] [2025-03-17 15:27:19,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:19,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:27:19,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:19,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:27:19,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:27:19,792 INFO L87 Difference]: Start difference. First operand 668 states and 877 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 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 15:27:20,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:20,297 INFO L93 Difference]: Finished difference Result 678 states and 888 transitions. [2025-03-17 15:27:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:27:20,298 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 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 104 [2025-03-17 15:27:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:20,300 INFO L225 Difference]: With dead ends: 678 [2025-03-17 15:27:20,300 INFO L226 Difference]: Without dead ends: 677 [2025-03-17 15:27:20,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:27:20,301 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 30 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:20,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 419 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:27:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2025-03-17 15:27:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 669. [2025-03-17 15:27:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 578 states have (on average 1.28719723183391) internal successors, (744), 593 states have internal predecessors, (744), 67 states have call successors, (67), 8 states have call predecessors, (67), 8 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-17 15:27:20,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 878 transitions. [2025-03-17 15:27:20,338 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 878 transitions. Word has length 104 [2025-03-17 15:27:20,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:20,339 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 878 transitions. [2025-03-17 15:27:20,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 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 15:27:20,339 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 878 transitions. [2025-03-17 15:27:20,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-17 15:27:20,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:20,340 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-03-17 15:27:20,346 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 15:27:20,540 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,SelfDestructingSolverStorable30 [2025-03-17 15:27:20,541 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:20,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:20,541 INFO L85 PathProgramCache]: Analyzing trace with hash 65763149, now seen corresponding path program 1 times [2025-03-17 15:27:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:20,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975105061] [2025-03-17 15:27:20,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:20,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:20,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 15:27:20,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 15:27:20,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:20,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-03-17 15:27:20,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975105061] [2025-03-17 15:27:20,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975105061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:20,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:20,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:27:20,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966907278] [2025-03-17 15:27:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:20,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:27:20,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:20,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:27:20,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:27:20,606 INFO L87 Difference]: Start difference. First operand 669 states and 878 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:27:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:20,761 INFO L93 Difference]: Finished difference Result 669 states and 878 transitions. [2025-03-17 15:27:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2025-03-17 15:27:20,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:20,763 INFO L225 Difference]: With dead ends: 669 [2025-03-17 15:27:20,763 INFO L226 Difference]: Without dead ends: 668 [2025-03-17 15:27:20,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:27:20,764 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 57 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:20,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 136 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2025-03-17 15:27:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 665. [2025-03-17 15:27:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 575 states have (on average 1.2869565217391303) internal successors, (740), 589 states have internal predecessors, (740), 67 states have call successors, (67), 8 states have call predecessors, (67), 8 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-17 15:27:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 874 transitions. [2025-03-17 15:27:20,815 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 874 transitions. Word has length 105 [2025-03-17 15:27:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:20,816 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 874 transitions. [2025-03-17 15:27:20,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:27:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 874 transitions. [2025-03-17 15:27:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-17 15:27:20,817 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:20,818 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2025-03-17 15:27:20,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-17 15:27:20,818 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:20,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash 824007951, now seen corresponding path program 1 times [2025-03-17 15:27:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:20,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431349026] [2025-03-17 15:27:20,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:20,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:27:20,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:27:20,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:20,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-17 15:27:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431349026] [2025-03-17 15:27:20,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431349026] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523981719] [2025-03-17 15:27:20,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:20,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:20,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:20,881 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 15:27:20,883 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 15:27:20,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:27:20,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:27:20,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:20,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:20,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:20,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-17 15:27:20,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-17 15:27:21,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523981719] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:21,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:21,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 15:27:21,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351666993] [2025-03-17 15:27:21,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:21,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:27:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:21,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:27:21,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:27:21,054 INFO L87 Difference]: Start difference. First operand 665 states and 874 transitions. Second operand has 11 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-17 15:27:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:21,293 INFO L93 Difference]: Finished difference Result 1380 states and 1794 transitions. [2025-03-17 15:27:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:27:21,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 107 [2025-03-17 15:27:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:21,298 INFO L225 Difference]: With dead ends: 1380 [2025-03-17 15:27:21,298 INFO L226 Difference]: Without dead ends: 1378 [2025-03-17 15:27:21,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:27:21,299 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 369 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:21,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 462 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:27:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2025-03-17 15:27:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 792. [2025-03-17 15:27:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 684 states have (on average 1.2894736842105263) internal successors, (882), 698 states have internal predecessors, (882), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-17 15:27:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1052 transitions. [2025-03-17 15:27:21,358 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1052 transitions. Word has length 107 [2025-03-17 15:27:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:21,358 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1052 transitions. [2025-03-17 15:27:21,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-17 15:27:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1052 transitions. [2025-03-17 15:27:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-17 15:27:21,360 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:21,360 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-03-17 15:27:21,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-17 15:27:21,560 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,SelfDestructingSolverStorable32 [2025-03-17 15:27:21,561 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:21,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:21,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2038657592, now seen corresponding path program 1 times [2025-03-17 15:27:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969718515] [2025-03-17 15:27:21,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:21,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-17 15:27:21,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-17 15:27:21,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:21,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:21,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086824914] [2025-03-17 15:27:21,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:21,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:21,580 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 15:27:21,581 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 15:27:21,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-17 15:27:21,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-17 15:27:21,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:21,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:21,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:27:21,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-03-17 15:27:21,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:33,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:33,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969718515] [2025-03-17 15:27:33,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:33,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086824914] [2025-03-17 15:27:33,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086824914] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:33,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:33,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:27:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326615722] [2025-03-17 15:27:33,931 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:33,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:27:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:33,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:27:33,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=62, Unknown=3, NotChecked=0, Total=90 [2025-03-17 15:27:33,932 INFO L87 Difference]: Start difference. First operand 792 states and 1052 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:27:34,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:34,204 INFO L93 Difference]: Finished difference Result 853 states and 1139 transitions. [2025-03-17 15:27:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:34,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2025-03-17 15:27:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:34,207 INFO L225 Difference]: With dead ends: 853 [2025-03-17 15:27:34,207 INFO L226 Difference]: Without dead ends: 844 [2025-03-17 15:27:34,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=25, Invalid=62, Unknown=3, NotChecked=0, Total=90 [2025-03-17 15:27:34,207 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 19 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:34,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 204 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:27:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2025-03-17 15:27:34,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 817. [2025-03-17 15:27:34,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 705 states have (on average 1.2865248226950354) internal successors, (907), 719 states have internal predecessors, (907), 89 states have call successors, (89), 8 states have call predecessors, (89), 8 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2025-03-17 15:27:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1085 transitions. [2025-03-17 15:27:34,262 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1085 transitions. Word has length 106 [2025-03-17 15:27:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:34,262 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1085 transitions. [2025-03-17 15:27:34,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:27:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1085 transitions. [2025-03-17 15:27:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-17 15:27:34,263 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:34,263 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1] [2025-03-17 15:27:34,269 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 15:27:34,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:34,468 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:34,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:34,468 INFO L85 PathProgramCache]: Analyzing trace with hash -413728710, now seen corresponding path program 1 times [2025-03-17 15:27:34,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:34,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145473842] [2025-03-17 15:27:34,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:34,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:34,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:27:34,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:27:34,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:34,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-03-17 15:27:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145473842] [2025-03-17 15:27:34,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145473842] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602139165] [2025-03-17 15:27:34,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:34,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:34,624 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 15:27:34,634 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 15:27:34,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:27:34,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:27:34,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:34,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:34,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:27:34,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 15:27:34,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 15:27:34,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602139165] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:34,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:34,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2025-03-17 15:27:34,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135332327] [2025-03-17 15:27:34,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:34,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:27:34,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:34,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:27:34,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:27:34,835 INFO L87 Difference]: Start difference. First operand 817 states and 1085 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-17 15:27:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:35,555 INFO L93 Difference]: Finished difference Result 1283 states and 1733 transitions. [2025-03-17 15:27:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 15:27:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 109 [2025-03-17 15:27:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:35,558 INFO L225 Difference]: With dead ends: 1283 [2025-03-17 15:27:35,558 INFO L226 Difference]: Without dead ends: 1117 [2025-03-17 15:27:35,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:27:35,559 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 236 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:35,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 617 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:27:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2025-03-17 15:27:35,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 805. [2025-03-17 15:27:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 694 states have (on average 1.3126801152737753) internal successors, (911), 708 states have internal predecessors, (911), 89 states have call successors, (89), 7 states have call predecessors, (89), 7 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2025-03-17 15:27:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1089 transitions. [2025-03-17 15:27:35,608 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1089 transitions. Word has length 109 [2025-03-17 15:27:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:35,608 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1089 transitions. [2025-03-17 15:27:35,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-17 15:27:35,608 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1089 transitions. [2025-03-17 15:27:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-17 15:27:35,609 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:35,609 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1] [2025-03-17 15:27:35,616 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 15:27:35,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:35,809 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:35,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash -62675364, now seen corresponding path program 2 times [2025-03-17 15:27:35,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:35,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520350407] [2025-03-17 15:27:35,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:35,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:35,814 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-03-17 15:27:35,826 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 15:27:35,826 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:27:35,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:35,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802648736] [2025-03-17 15:27:35,827 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:35,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:35,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:35,829 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 15:27:35,831 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 15:27:35,853 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-03-17 15:27:35,878 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 15:27:35,879 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:27:35,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:35,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:27:35,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 15:27:36,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520350407] [2025-03-17 15:27:36,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802648736] [2025-03-17 15:27:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802648736] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:36,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:27:36,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145844540] [2025-03-17 15:27:36,485 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:36,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:27:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:36,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:27:36,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:27:36,485 INFO L87 Difference]: Start difference. First operand 805 states and 1089 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 15:27:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:36,707 INFO L93 Difference]: Finished difference Result 1118 states and 1555 transitions. [2025-03-17 15:27:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:27:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2025-03-17 15:27:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:36,711 INFO L225 Difference]: With dead ends: 1118 [2025-03-17 15:27:36,711 INFO L226 Difference]: Without dead ends: 1116 [2025-03-17 15:27:36,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:27:36,712 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 109 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:36,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 236 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2025-03-17 15:27:36,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 803. [2025-03-17 15:27:36,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 694 states have (on average 1.2651296829971181) internal successors, (878), 706 states have internal predecessors, (878), 89 states have call successors, (89), 7 states have call predecessors, (89), 7 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2025-03-17 15:27:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1056 transitions. [2025-03-17 15:27:36,769 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1056 transitions. Word has length 112 [2025-03-17 15:27:36,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:36,770 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1056 transitions. [2025-03-17 15:27:36,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 15:27:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1056 transitions. [2025-03-17 15:27:36,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 15:27:36,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:36,771 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:36,778 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 15:27:36,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-17 15:27:36,972 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:36,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1942936273, now seen corresponding path program 2 times [2025-03-17 15:27:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:36,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980191270] [2025-03-17 15:27:36,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:36,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:36,976 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:27:36,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:27:36,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:27:36,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:36,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587463903] [2025-03-17 15:27:36,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:36,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:36,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:37,024 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 15:27:37,025 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 15:27:37,047 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:27:37,067 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:27:37,067 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:27:37,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:37,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:27:37,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 15:27:37,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:37,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:37,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980191270] [2025-03-17 15:27:37,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:37,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587463903] [2025-03-17 15:27:37,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587463903] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:37,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:37,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:27:37,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000022269] [2025-03-17 15:27:37,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:37,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:27:37,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:37,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:27:37,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:27:37,590 INFO L87 Difference]: Start difference. First operand 803 states and 1056 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 15:27:37,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:37,758 INFO L93 Difference]: Finished difference Result 1039 states and 1359 transitions. [2025-03-17 15:27:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2025-03-17 15:27:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:37,761 INFO L225 Difference]: With dead ends: 1039 [2025-03-17 15:27:37,761 INFO L226 Difference]: Without dead ends: 884 [2025-03-17 15:27:37,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:27:37,762 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 94 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:37,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 319 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:37,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2025-03-17 15:27:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 866. [2025-03-17 15:27:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 749 states have (on average 1.2576769025367156) internal successors, (942), 761 states have internal predecessors, (942), 97 states have call successors, (97), 7 states have call predecessors, (97), 7 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2025-03-17 15:27:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1136 transitions. [2025-03-17 15:27:37,816 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1136 transitions. Word has length 113 [2025-03-17 15:27:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:37,816 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1136 transitions. [2025-03-17 15:27:37,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 15:27:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1136 transitions. [2025-03-17 15:27:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 15:27:37,817 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:37,817 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-03-17 15:27:37,823 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 15:27:38,017 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,SelfDestructingSolverStorable36 [2025-03-17 15:27:38,018 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:38,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:38,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1850987225, now seen corresponding path program 2 times [2025-03-17 15:27:38,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:38,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235163206] [2025-03-17 15:27:38,018 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:38,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:38,024 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-03-17 15:27:38,026 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 131 statements. [2025-03-17 15:27:38,026 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:27:38,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:27:38,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235163206] [2025-03-17 15:27:38,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235163206] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000175253] [2025-03-17 15:27:38,040 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:38,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:38,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:38,044 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 15:27:38,045 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 15:27:38,068 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-03-17 15:27:38,082 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 131 statements. [2025-03-17 15:27:38,082 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:27:38,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:38,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:27:38,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:27:38,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:27:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000175253] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:38,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 15:27:38,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846810409] [2025-03-17 15:27:38,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:38,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:27:38,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:38,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:27:38,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:38,258 INFO L87 Difference]: Start difference. First operand 866 states and 1136 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:27:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:38,392 INFO L93 Difference]: Finished difference Result 912 states and 1196 transitions. [2025-03-17 15:27:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:38,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 131 [2025-03-17 15:27:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:38,395 INFO L225 Difference]: With dead ends: 912 [2025-03-17 15:27:38,395 INFO L226 Difference]: Without dead ends: 910 [2025-03-17 15:27:38,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:27:38,396 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 98 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:38,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 202 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:38,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2025-03-17 15:27:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 667. [2025-03-17 15:27:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 572 states have (on average 1.2342657342657342) internal successors, (706), 582 states have internal predecessors, (706), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-03-17 15:27:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 860 transitions. [2025-03-17 15:27:38,451 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 860 transitions. Word has length 131 [2025-03-17 15:27:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:38,451 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 860 transitions. [2025-03-17 15:27:38,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:27:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 860 transitions. [2025-03-17 15:27:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 15:27:38,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:38,452 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:38,459 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 15:27:38,653 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,SelfDestructingSolverStorable37 [2025-03-17 15:27:38,653 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:38,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1545991417, now seen corresponding path program 2 times [2025-03-17 15:27:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:38,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618465992] [2025-03-17 15:27:38,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:27:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:38,658 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-03-17 15:27:38,663 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 132 statements. [2025-03-17 15:27:38,663 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:27:38,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2025-03-17 15:27:38,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:38,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618465992] [2025-03-17 15:27:38,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618465992] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:38,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:38,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:27:38,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442419510] [2025-03-17 15:27:38,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:38,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:27:38,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:38,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:27:38,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:27:38,722 INFO L87 Difference]: Start difference. First operand 667 states and 860 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:27:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:38,797 INFO L93 Difference]: Finished difference Result 668 states and 860 transitions. [2025-03-17 15:27:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 132 [2025-03-17 15:27:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:38,799 INFO L225 Difference]: With dead ends: 668 [2025-03-17 15:27:38,799 INFO L226 Difference]: Without dead ends: 667 [2025-03-17 15:27:38,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:38,800 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:38,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 203 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:38,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2025-03-17 15:27:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 664. [2025-03-17 15:27:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 569 states have (on average 1.2319859402460458) internal successors, (701), 579 states have internal predecessors, (701), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-03-17 15:27:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 855 transitions. [2025-03-17 15:27:38,845 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 855 transitions. Word has length 132 [2025-03-17 15:27:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:38,845 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 855 transitions. [2025-03-17 15:27:38,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:27:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 855 transitions. [2025-03-17 15:27:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 15:27:38,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:38,846 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:27:38,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-17 15:27:38,847 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:38,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:38,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1405093489, now seen corresponding path program 1 times [2025-03-17 15:27:38,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:38,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870105540] [2025-03-17 15:27:38,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:38,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:38,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-17 15:27:38,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 15:27:38,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:38,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 15:27:39,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:39,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870105540] [2025-03-17 15:27:39,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870105540] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:39,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934339119] [2025-03-17 15:27:39,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:39,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:39,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:39,029 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 15:27:39,031 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 15:27:39,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-17 15:27:39,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 15:27:39,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:39,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:39,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:27:39,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 387 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 15:27:39,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 15:27:39,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934339119] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:39,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 25 [2025-03-17 15:27:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795267457] [2025-03-17 15:27:39,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:39,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-17 15:27:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:39,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-17 15:27:39,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:27:39,416 INFO L87 Difference]: Start difference. First operand 664 states and 855 transitions. Second operand has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2025-03-17 15:27:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:39,873 INFO L93 Difference]: Finished difference Result 934 states and 1170 transitions. [2025-03-17 15:27:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-03-17 15:27:39,874 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 132 [2025-03-17 15:27:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:39,876 INFO L225 Difference]: With dead ends: 934 [2025-03-17 15:27:39,876 INFO L226 Difference]: Without dead ends: 929 [2025-03-17 15:27:39,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=667, Invalid=2195, Unknown=0, NotChecked=0, Total=2862 [2025-03-17 15:27:39,878 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 293 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:39,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 615 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:27:39,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2025-03-17 15:27:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 887. [2025-03-17 15:27:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 769 states have (on average 1.200260078023407) internal successors, (923), 779 states have internal predecessors, (923), 93 states have call successors, (93), 14 states have call predecessors, (93), 14 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-17 15:27:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1109 transitions. [2025-03-17 15:27:39,943 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1109 transitions. Word has length 132 [2025-03-17 15:27:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:39,943 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1109 transitions. [2025-03-17 15:27:39,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2025-03-17 15:27:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1109 transitions. [2025-03-17 15:27:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-17 15:27:39,944 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:39,944 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:39,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-17 15:27:40,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-17 15:27:40,145 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:40,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:40,145 INFO L85 PathProgramCache]: Analyzing trace with hash -144610752, now seen corresponding path program 1 times [2025-03-17 15:27:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:40,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890408531] [2025-03-17 15:27:40,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:40,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:40,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-17 15:27:40,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-17 15:27:40,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:40,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:27:40,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:40,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890408531] [2025-03-17 15:27:40,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890408531] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:40,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098595902] [2025-03-17 15:27:40,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:40,345 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 15:27:40,348 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 15:27:40,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-17 15:27:40,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-17 15:27:40,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:40,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:40,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:27:40,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:27:40,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:27:41,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098595902] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:41,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:41,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-03-17 15:27:41,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341896824] [2025-03-17 15:27:41,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:41,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 15:27:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:41,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 15:27:41,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:27:41,951 INFO L87 Difference]: Start difference. First operand 887 states and 1109 transitions. Second operand has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 22 states have internal predecessors, (215), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-17 15:27:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:42,925 INFO L93 Difference]: Finished difference Result 1384 states and 1753 transitions. [2025-03-17 15:27:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 15:27:42,925 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 22 states have internal predecessors, (215), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 137 [2025-03-17 15:27:42,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:42,928 INFO L225 Difference]: With dead ends: 1384 [2025-03-17 15:27:42,928 INFO L226 Difference]: Without dead ends: 1382 [2025-03-17 15:27:42,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=447, Invalid=743, Unknown=0, NotChecked=0, Total=1190 [2025-03-17 15:27:42,929 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 632 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:42,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 871 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:27:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2025-03-17 15:27:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1205. [2025-03-17 15:27:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1059 states have (on average 1.206798866855524) internal successors, (1278), 1069 states have internal predecessors, (1278), 121 states have call successors, (121), 14 states have call predecessors, (121), 14 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2025-03-17 15:27:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1520 transitions. [2025-03-17 15:27:43,013 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1520 transitions. Word has length 137 [2025-03-17 15:27:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:43,014 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1520 transitions. [2025-03-17 15:27:43,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.238095238095237) internal successors, (215), 22 states have internal predecessors, (215), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-17 15:27:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1520 transitions. [2025-03-17 15:27:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-03-17 15:27:43,015 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:43,015 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2025-03-17 15:27:43,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-17 15:27:43,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:43,215 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:43,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1414764367, now seen corresponding path program 1 times [2025-03-17 15:27:43,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:43,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866973508] [2025-03-17 15:27:43,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:43,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:43,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-17 15:27:43,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-17 15:27:43,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:43,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733722033] [2025-03-17 15:27:43,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:43,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:43,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:43,231 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 15:27:43,233 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 15:27:43,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-17 15:27:43,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-17 15:27:43,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:43,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:43,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 15:27:43,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 15:27:44,245 INFO L312 TraceCheckSpWp]: Computing backward predicates...