./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.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/hard2_unwindbound10.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 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:27:52,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:27:52,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:27:52,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:27:52,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:27:52,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:27:52,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:27:52,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:27:52,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:27:52,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:27:52,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:27:52,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:27:52,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:27:52,988 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:27:52,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:27:52,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:27:52,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:27:52,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:27:52,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:27:52,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:27:52,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:27:52,989 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 -> 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 [2025-03-17 15:27:53,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:27:53,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:27:53,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:27:53,204 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:27:53,204 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:27:53,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2025-03-17 15:27:54,337 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544f064e6/c6f9d07a7d854ea39869412cb0a28d33/FLAG387c6d9b2 [2025-03-17 15:27:54,531 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:27:54,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2025-03-17 15:27:54,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544f064e6/c6f9d07a7d854ea39869412cb0a28d33/FLAG387c6d9b2 [2025-03-17 15:27:54,907 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544f064e6/c6f9d07a7d854ea39869412cb0a28d33 [2025-03-17 15:27:54,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:27:54,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:27:54,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:27:54,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:27:54,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:27:54,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:27:54" (1/1) ... [2025-03-17 15:27:54,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346a8cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:54, skipping insertion in model container [2025-03-17 15:27:54,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:27:54" (1/1) ... [2025-03-17 15:27:54,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:27:55,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:27:55,022 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:27:55,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:27:55,040 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:27:55,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55 WrapperNode [2025-03-17 15:27:55,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:27:55,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:27:55,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:27:55,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:27:55,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,073 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2025-03-17 15:27:55,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:27:55,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:27:55,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:27:55,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:27:55,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,092 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-03-17 15:27:55,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,100 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:27:55,103 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:27:55,103 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:27:55,103 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:27:55,108 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (1/1) ... [2025-03-17 15:27:55,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:27:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:55,138 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 15:27:55,140 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 15:27:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:27:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:27:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 15:27:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:27:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:27:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:27:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:27:55,204 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:27:55,205 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:27:55,431 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2025-03-17 15:27:55,435 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:27:55,445 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:27:55,446 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:27:55,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:27:55 BoogieIcfgContainer [2025-03-17 15:27:55,446 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:27:55,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:27:55,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:27:55,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:27:55,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:27:54" (1/3) ... [2025-03-17 15:27:55,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a1f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:27:55, skipping insertion in model container [2025-03-17 15:27:55,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:27:55" (2/3) ... [2025-03-17 15:27:55,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a1f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:27:55, skipping insertion in model container [2025-03-17 15:27:55,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:27:55" (3/3) ... [2025-03-17 15:27:55,454 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound10.c [2025-03-17 15:27:55,463 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:27:55,464 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_unwindbound10.c that has 2 procedures, 78 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2025-03-17 15:27:55,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:27:55,512 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;@8736f0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:27:55,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-17 15:27:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 69 states have internal predecessors, (77), 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 15:27:55,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 15:27:55,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:55,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 15:27:55,520 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 15:27:55,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:55,526 INFO L85 PathProgramCache]: Analyzing trace with hash 107180, now seen corresponding path program 1 times [2025-03-17 15:27:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370173514] [2025-03-17 15:27:55,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:55,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 15:27:55,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 15:27:55,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:55,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:55,676 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 15:27:55,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:55,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370173514] [2025-03-17 15:27:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370173514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:55,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389196215] [2025-03-17 15:27:55,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:55,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:27:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:55,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:27:55,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:27:55,696 INFO L87 Difference]: Start difference. First operand has 78 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 69 states have internal predecessors, (77), 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 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:27:55,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:55,765 INFO L93 Difference]: Finished difference Result 163 states and 198 transitions. [2025-03-17 15:27:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:27:55,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 15:27:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:55,771 INFO L225 Difference]: With dead ends: 163 [2025-03-17 15:27:55,771 INFO L226 Difference]: Without dead ends: 81 [2025-03-17 15:27:55,773 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 15:27:55,775 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 34 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 216 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 15:27:55,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:55,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-17 15:27:55,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2025-03-17 15:27:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 68 states have internal predecessors, (73), 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 15:27:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2025-03-17 15:27:55,802 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 3 [2025-03-17 15:27:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:55,803 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2025-03-17 15:27:55,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:27:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2025-03-17 15:27:55,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:27:55,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:55,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:27:55,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:27:55,803 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 15:27:55,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash 3322622, now seen corresponding path program 1 times [2025-03-17 15:27:55,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898192625] [2025-03-17 15:27:55,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:55,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:55,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:27:55,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:27:55,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:55,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:55,846 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 15:27:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898192625] [2025-03-17 15:27:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898192625] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:55,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:55,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:55,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250839551] [2025-03-17 15:27:55,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:55,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:27:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:55,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:27:55,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:27:55,848 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:27:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:55,883 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2025-03-17 15:27:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:27:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-17 15:27:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:55,886 INFO L225 Difference]: With dead ends: 131 [2025-03-17 15:27:55,886 INFO L226 Difference]: Without dead ends: 80 [2025-03-17 15:27:55,886 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 15:27:55,887 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 3 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 223 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 15:27:55,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 223 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-03-17 15:27:55,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-03-17 15:27:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.673913043478261) internal successors, (77), 72 states have internal predecessors, (77), 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 15:27:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2025-03-17 15:27:55,895 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 4 [2025-03-17 15:27:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:55,895 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2025-03-17 15:27:55,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:27:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2025-03-17 15:27:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 15:27:55,896 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:55,896 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:55,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:27:55,896 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 15:27:55,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:55,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1895308770, now seen corresponding path program 1 times [2025-03-17 15:27:55,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:55,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792225884] [2025-03-17 15:27:55,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:55,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:55,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 15:27:55,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 15:27:55,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:55,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:55,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449537846] [2025-03-17 15:27:55,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:55,922 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 15:27:55,923 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 15:27:55,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 15:27:55,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 15:27:55,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:55,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:55,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:55,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:56,040 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 15:27:56,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:27:56,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792225884] [2025-03-17 15:27:56,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:56,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449537846] [2025-03-17 15:27:56,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449537846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:56,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:56,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463004327] [2025-03-17 15:27:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:56,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:27:56,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:56,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:27:56,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:27:56,043 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 15:27:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:56,143 INFO L93 Difference]: Finished difference Result 169 states and 192 transitions. [2025-03-17 15:27:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:27:56,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2025-03-17 15:27:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:56,144 INFO L225 Difference]: With dead ends: 169 [2025-03-17 15:27:56,144 INFO L226 Difference]: Without dead ends: 115 [2025-03-17 15:27:56,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 15:27:56,145 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 29 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:56,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 114 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:56,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-17 15:27:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2025-03-17 15:27:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.640625) internal successors, (105), 90 states have internal predecessors, (105), 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 15:27:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 125 transitions. [2025-03-17 15:27:56,163 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 125 transitions. Word has length 16 [2025-03-17 15:27:56,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:56,163 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 125 transitions. [2025-03-17 15:27:56,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 15:27:56,164 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 125 transitions. [2025-03-17 15:27:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-17 15:27:56,164 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:56,164 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:56,170 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 15:27:56,365 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 15:27:56,366 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 15:27:56,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:56,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1498999456, now seen corresponding path program 1 times [2025-03-17 15:27:56,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:56,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993102878] [2025-03-17 15:27:56,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:56,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:56,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 15:27:56,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 15:27:56,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:56,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:56,459 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 15:27:56,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:56,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993102878] [2025-03-17 15:27:56,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993102878] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:56,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:56,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078361740] [2025-03-17 15:27:56,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:56,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:27:56,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:56,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:27:56,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:27:56,460 INFO L87 Difference]: Start difference. First operand 103 states and 125 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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 15:27:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:56,523 INFO L93 Difference]: Finished difference Result 115 states and 132 transitions. [2025-03-17 15:27:56,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:27:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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 24 [2025-03-17 15:27:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:56,524 INFO L225 Difference]: With dead ends: 115 [2025-03-17 15:27:56,525 INFO L226 Difference]: Without dead ends: 113 [2025-03-17 15:27:56,525 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 15:27:56,525 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 23 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:56,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 125 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-17 15:27:56,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 103. [2025-03-17 15:27:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.609375) internal successors, (103), 90 states have internal predecessors, (103), 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 15:27:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2025-03-17 15:27:56,534 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 24 [2025-03-17 15:27:56,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:56,535 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2025-03-17 15:27:56,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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 15:27:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2025-03-17 15:27:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-17 15:27:56,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:56,536 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:56,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:27:56,536 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 15:27:56,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:56,536 INFO L85 PathProgramCache]: Analyzing trace with hash -775658310, now seen corresponding path program 1 times [2025-03-17 15:27:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:56,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217330155] [2025-03-17 15:27:56,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:56,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:56,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 15:27:56,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 15:27:56,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:56,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:56,611 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 15:27:56,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:56,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217330155] [2025-03-17 15:27:56,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217330155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:56,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:56,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:27:56,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361942168] [2025-03-17 15:27:56,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:56,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:27:56,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:56,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:27:56,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:56,613 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 15:27:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:56,674 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2025-03-17 15:27:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:27:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 25 [2025-03-17 15:27:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:56,675 INFO L225 Difference]: With dead ends: 103 [2025-03-17 15:27:56,675 INFO L226 Difference]: Without dead ends: 102 [2025-03-17 15:27:56,676 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 15:27:56,676 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 134 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:56,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 199 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-17 15:27:56,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2025-03-17 15:27:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 64 states have (on average 1.578125) 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 15:27:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2025-03-17 15:27:56,685 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 25 [2025-03-17 15:27:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:56,685 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2025-03-17 15:27:56,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 15:27:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2025-03-17 15:27:56,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-17 15:27:56,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:56,686 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 15:27:56,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:27:56,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:56,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:56,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1724396183, now seen corresponding path program 1 times [2025-03-17 15:27:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:56,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529419439] [2025-03-17 15:27:56,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:56,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:56,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 15:27:56,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 15:27:56,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:56,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:56,749 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 15:27:56,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:56,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529419439] [2025-03-17 15:27:56,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529419439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:56,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:56,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:27:56,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656692135] [2025-03-17 15:27:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:56,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:27:56,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:56,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:27:56,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:56,750 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 15:27:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:56,813 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2025-03-17 15:27:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:27:56,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 15:27:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:56,814 INFO L225 Difference]: With dead ends: 119 [2025-03-17 15:27:56,814 INFO L226 Difference]: Without dead ends: 110 [2025-03-17 15:27:56,814 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 15:27:56,814 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 20 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:56,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 345 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-17 15:27:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2025-03-17 15:27:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.5223880597014925) 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 15:27:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2025-03-17 15:27:56,821 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 26 [2025-03-17 15:27:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:56,821 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2025-03-17 15:27:56,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 15:27:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2025-03-17 15:27:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 15:27:56,821 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:56,822 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 15:27:56,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 15:27:56,822 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:56,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:56,822 INFO L85 PathProgramCache]: Analyzing trace with hash -712643915, now seen corresponding path program 1 times [2025-03-17 15:27:56,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:56,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708124210] [2025-03-17 15:27:56,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:56,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:56,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:27:56,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:27:56,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:56,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152827954] [2025-03-17 15:27:56,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:56,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:56,834 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 15:27:56,835 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 15:27:56,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:27:56,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:27:56,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:56,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:56,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:27:56,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:56,907 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 15:27:56,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:27:56,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:56,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708124210] [2025-03-17 15:27:56,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:56,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152827954] [2025-03-17 15:27:56,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152827954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:56,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:56,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260813471] [2025-03-17 15:27:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:56,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:27:56,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:56,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:27:56,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:27:56,908 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 15:27:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:56,951 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2025-03-17 15:27:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:27:56,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 15:27:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:56,952 INFO L225 Difference]: With dead ends: 145 [2025-03-17 15:27:56,952 INFO L226 Difference]: Without dead ends: 141 [2025-03-17 15:27:56,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:27:56,953 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 43 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:56,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 100 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2025-03-17 15:27:56,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 126. [2025-03-17 15:27:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 85 states have (on average 1.5294117647058822) internal successors, (130), 110 states have internal predecessors, (130), 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 15:27:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2025-03-17 15:27:56,959 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 28 [2025-03-17 15:27:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:56,959 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2025-03-17 15:27:56,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 15:27:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2025-03-17 15:27:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:27:56,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:56,960 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 15:27:56,966 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 15:27:57,161 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,SelfDestructingSolverStorable6 [2025-03-17 15:27:57,161 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:57,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1951001901, now seen corresponding path program 1 times [2025-03-17 15:27:57,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:57,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277411890] [2025-03-17 15:27:57,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:57,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:57,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:27:57,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:27:57,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:57,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:57,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957369412] [2025-03-17 15:27:57,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:57,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:57,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:57,177 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 15:27:57,178 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 15:27:57,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:27:57,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:27:57,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:57,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:57,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:57,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:57,315 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 15:27:57,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:27:57,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:57,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277411890] [2025-03-17 15:27:57,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:57,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957369412] [2025-03-17 15:27:57,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957369412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:57,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:57,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:27:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562656858] [2025-03-17 15:27:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:57,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:27:57,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:57,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:27:57,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:27:57,316 INFO L87 Difference]: Start difference. First operand 126 states and 154 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 15:27:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:57,373 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2025-03-17 15:27:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:27:57,373 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 15:27:57,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:57,374 INFO L225 Difference]: With dead ends: 139 [2025-03-17 15:27:57,374 INFO L226 Difference]: Without dead ends: 137 [2025-03-17 15:27:57,374 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 15:27:57,374 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 37 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:57,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 92 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:57,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-17 15:27:57,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2025-03-17 15:27:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 86 states have (on average 1.5) internal successors, (129), 111 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 15:27:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2025-03-17 15:27:57,385 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 30 [2025-03-17 15:27:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:57,386 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2025-03-17 15:27:57,386 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 15:27:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2025-03-17 15:27:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:27:57,386 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:57,386 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] [2025-03-17 15:27:57,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:27:57,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:57,588 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:57,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1461404237, now seen corresponding path program 1 times [2025-03-17 15:27:57,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434820899] [2025-03-17 15:27:57,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:57,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:57,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:27:57,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:27:57,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:57,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:57,652 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 15:27:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:57,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434820899] [2025-03-17 15:27:57,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434820899] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:57,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959676956] [2025-03-17 15:27:57,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:57,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:57,655 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 15:27:57,656 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 15:27:57,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:27:57,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:27:57,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:57,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:57,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:27:57,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:27:57,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:27:57,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959676956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:57,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:57,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-17 15:27:57,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878822754] [2025-03-17 15:27:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:57,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:27:57,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:57,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:27:57,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:27:57,739 INFO L87 Difference]: Start difference. First operand 127 states and 153 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 15:27:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:57,775 INFO L93 Difference]: Finished difference Result 131 states and 157 transitions. [2025-03-17 15:27:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:27:57,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 15:27:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:57,777 INFO L225 Difference]: With dead ends: 131 [2025-03-17 15:27:57,777 INFO L226 Difference]: Without dead ends: 130 [2025-03-17 15:27:57,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:27:57,777 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:57,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 260 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:27:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-03-17 15:27:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2025-03-17 15:27:57,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 86 states have (on average 1.4883720930232558) internal successors, (128), 110 states have internal predecessors, (128), 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 15:27:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2025-03-17 15:27:57,784 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 30 [2025-03-17 15:27:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:57,784 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2025-03-17 15:27:57,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 15:27:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2025-03-17 15:27:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-17 15:27:57,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:57,785 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:57,790 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 15:27:57,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:57,989 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:57,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -351516780, now seen corresponding path program 1 times [2025-03-17 15:27:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926712972] [2025-03-17 15:27:57,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:57,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:57,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:27:57,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:27:57,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:57,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:58,035 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 15:27:58,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926712972] [2025-03-17 15:27:58,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926712972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:58,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:58,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:27:58,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087225908] [2025-03-17 15:27:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:58,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:27:58,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:58,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:27:58,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:27:58,036 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:27:58,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:58,247 INFO L93 Difference]: Finished difference Result 145 states and 177 transitions. [2025-03-17 15:27:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:27:58,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2025-03-17 15:27:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:58,249 INFO L225 Difference]: With dead ends: 145 [2025-03-17 15:27:58,249 INFO L226 Difference]: Without dead ends: 144 [2025-03-17 15:27:58,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 15:27:58,249 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 89 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:58,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 151 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:27:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2025-03-17 15:27:58,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 134. [2025-03-17 15:27:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 94 states have (on average 1.4787234042553192) internal successors, (139), 118 states have internal predecessors, (139), 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 15:27:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2025-03-17 15:27:58,256 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 31 [2025-03-17 15:27:58,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:58,257 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2025-03-17 15:27:58,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 15:27:58,257 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2025-03-17 15:27:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:27:58,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:58,257 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:58,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 15:27:58,258 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:58,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 137076893, now seen corresponding path program 1 times [2025-03-17 15:27:58,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:58,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75105458] [2025-03-17 15:27:58,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:58,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:27:58,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:27:58,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:58,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:27:58,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:58,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75105458] [2025-03-17 15:27:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75105458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:58,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717505192] [2025-03-17 15:27:58,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:58,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:58,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:58,318 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 15:27:58,319 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 15:27:58,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:27:58,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:27:58,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:58,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:58,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:58,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:27:58,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:27:58,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717505192] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:27:58,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:27:58,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2025-03-17 15:27:58,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520133557] [2025-03-17 15:27:58,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:58,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:27:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:58,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:27:58,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:27:58,456 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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 15:27:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:58,574 INFO L93 Difference]: Finished difference Result 272 states and 330 transitions. [2025-03-17 15:27:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:27:58,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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 34 [2025-03-17 15:27:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:58,576 INFO L225 Difference]: With dead ends: 272 [2025-03-17 15:27:58,576 INFO L226 Difference]: Without dead ends: 194 [2025-03-17 15:27:58,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 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 15:27:58,577 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 58 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:58,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 437 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2025-03-17 15:27:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 174. [2025-03-17 15:27:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 126 states have (on average 1.4682539682539681) internal successors, (185), 150 states have internal predecessors, (185), 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 15:27:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 221 transitions. [2025-03-17 15:27:58,592 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 221 transitions. Word has length 34 [2025-03-17 15:27:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:58,592 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 221 transitions. [2025-03-17 15:27:58,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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 15:27:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 221 transitions. [2025-03-17 15:27:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:27:58,594 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:58,594 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] [2025-03-17 15:27:58,600 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 15:27:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 15:27:58,795 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 15:27:58,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2107540819, now seen corresponding path program 1 times [2025-03-17 15:27:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740738621] [2025-03-17 15:27:58,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:58,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:27:58,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:27:58,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:58,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:58,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221098138] [2025-03-17 15:27:58,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:58,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:58,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:58,814 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 15:27:58,816 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 15:27:58,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:27:58,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:27:58,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:58,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:58,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:58,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:58,911 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 15:27:58,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:27:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740738621] [2025-03-17 15:27:58,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221098138] [2025-03-17 15:27:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221098138] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:58,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:27:58,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829999315] [2025-03-17 15:27:58,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:58,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:27:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:58,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:27:58,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:27:58,912 INFO L87 Difference]: Start difference. First operand 174 states and 221 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 15:27:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:58,976 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2025-03-17 15:27:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:27:58,977 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), 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 42 [2025-03-17 15:27:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:58,977 INFO L225 Difference]: With dead ends: 209 [2025-03-17 15:27:58,977 INFO L226 Difference]: Without dead ends: 200 [2025-03-17 15:27:58,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:27:58,978 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 60 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:58,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 138 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-03-17 15:27:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 183. [2025-03-17 15:27:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 157 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 15:27:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 229 transitions. [2025-03-17 15:27:58,989 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 229 transitions. Word has length 42 [2025-03-17 15:27:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:58,989 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 229 transitions. [2025-03-17 15:27:58,989 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), 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 15:27:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 229 transitions. [2025-03-17 15:27:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:27:58,991 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:58,991 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] [2025-03-17 15:27:58,997 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 15:27:59,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:59,192 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 15:27:59,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:59,192 INFO L85 PathProgramCache]: Analyzing trace with hash 909255983, now seen corresponding path program 1 times [2025-03-17 15:27:59,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:59,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292192767] [2025-03-17 15:27:59,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:59,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:27:59,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:27:59,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:59,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:27:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113248594] [2025-03-17 15:27:59,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:59,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:59,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:27:59,201 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 15:27:59,203 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 15:27:59,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:27:59,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:27:59,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:59,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:59,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:27:59,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:27:59,316 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 15:27:59,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:27:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:59,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292192767] [2025-03-17 15:27:59,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:27:59,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113248594] [2025-03-17 15:27:59,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113248594] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:27:59,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:27:59,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-17 15:27:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598882880] [2025-03-17 15:27:59,481 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:27:59,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:27:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:59,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:27:59,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:59,482 INFO L87 Difference]: Start difference. First operand 183 states and 229 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 15:27:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:59,570 INFO L93 Difference]: Finished difference Result 278 states and 349 transitions. [2025-03-17 15:27:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:27:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 43 [2025-03-17 15:27:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:59,571 INFO L225 Difference]: With dead ends: 278 [2025-03-17 15:27:59,571 INFO L226 Difference]: Without dead ends: 274 [2025-03-17 15:27:59,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 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 15:27:59,572 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 64 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:59,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 159 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-03-17 15:27:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 244. [2025-03-17 15:27:59,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 192 states have (on average 1.4010416666666667) internal successors, (269), 212 states have internal predecessors, (269), 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 15:27:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 321 transitions. [2025-03-17 15:27:59,584 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 321 transitions. Word has length 43 [2025-03-17 15:27:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:59,584 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 321 transitions. [2025-03-17 15:27:59,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 15:27:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 321 transitions. [2025-03-17 15:27:59,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:27:59,584 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:59,585 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] [2025-03-17 15:27:59,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 15:27:59,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:27:59,785 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:59,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash 704786185, now seen corresponding path program 1 times [2025-03-17 15:27:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081041049] [2025-03-17 15:27:59,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:59,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:27:59,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:27:59,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:59,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:27:59,867 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 15:27:59,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:27:59,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081041049] [2025-03-17 15:27:59,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081041049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:27:59,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:27:59,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:27:59,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199545966] [2025-03-17 15:27:59,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:27:59,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:27:59,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:27:59,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:27:59,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:27:59,869 INFO L87 Difference]: Start difference. First operand 244 states and 321 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 15:27:59,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:27:59,963 INFO L93 Difference]: Finished difference Result 249 states and 325 transitions. [2025-03-17 15:27:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:27:59,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 48 [2025-03-17 15:27:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:27:59,966 INFO L225 Difference]: With dead ends: 249 [2025-03-17 15:27:59,966 INFO L226 Difference]: Without dead ends: 231 [2025-03-17 15:27:59,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:27:59,967 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 23 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:27:59,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 194 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:27:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-03-17 15:27:59,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2025-03-17 15:27:59,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 181 states have (on average 1.419889502762431) internal successors, (257), 201 states have internal predecessors, (257), 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 15:27:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 305 transitions. [2025-03-17 15:27:59,979 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 305 transitions. Word has length 48 [2025-03-17 15:27:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:27:59,980 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 305 transitions. [2025-03-17 15:27:59,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 15:27:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 305 transitions. [2025-03-17 15:27:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-17 15:27:59,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:27:59,980 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 15:27:59,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 15:27:59,981 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:27:59,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:27:59,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1765308203, now seen corresponding path program 1 times [2025-03-17 15:27:59,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:27:59,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659542659] [2025-03-17 15:27:59,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:27:59,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:27:59,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:27:59,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:27:59,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:27:59,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:28:00,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:00,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659542659] [2025-03-17 15:28:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659542659] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:00,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354949511] [2025-03-17 15:28:00,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:00,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:00,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:00,031 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 15:28:00,033 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 15:28:00,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:28:00,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:28:00,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:00,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:28:00,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:28:00,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:00,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354949511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:00,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:00,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:28:00,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988522185] [2025-03-17 15:28:00,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:00,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:28:00,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:00,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:28:00,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:28:00,098 INFO L87 Difference]: Start difference. First operand 231 states and 305 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, (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 15:28:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:00,160 INFO L93 Difference]: Finished difference Result 332 states and 450 transitions. [2025-03-17 15:28:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:28:00,161 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, (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 50 [2025-03-17 15:28:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:00,162 INFO L225 Difference]: With dead ends: 332 [2025-03-17 15:28:00,162 INFO L226 Difference]: Without dead ends: 330 [2025-03-17 15:28:00,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 15:28:00,163 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 57 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:00,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 146 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:28:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2025-03-17 15:28:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 304. [2025-03-17 15:28:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 247 states have (on average 1.437246963562753) internal successors, (355), 266 states have internal predecessors, (355), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-17 15:28:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 419 transitions. [2025-03-17 15:28:00,175 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 419 transitions. Word has length 50 [2025-03-17 15:28:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:00,176 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 419 transitions. [2025-03-17 15:28:00,176 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, (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 15:28:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 419 transitions. [2025-03-17 15:28:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-17 15:28:00,176 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:00,176 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] [2025-03-17 15:28:00,182 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 15:28:00,376 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,SelfDestructingSolverStorable14 [2025-03-17 15:28:00,377 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:00,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1110020582, now seen corresponding path program 1 times [2025-03-17 15:28:00,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:00,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386345762] [2025-03-17 15:28:00,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:00,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:00,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 15:28:00,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 15:28:00,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:00,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,413 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 15:28:00,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:00,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386345762] [2025-03-17 15:28:00,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386345762] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:00,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517060889] [2025-03-17 15:28:00,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:00,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:00,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:00,416 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 15:28:00,416 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 15:28:00,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 15:28:00,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 15:28:00,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:00,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:28:00,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:00,482 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 15:28:00,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:00,528 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 15:28:00,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517060889] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:00,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:00,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:28:00,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446901016] [2025-03-17 15:28:00,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:00,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:28:00,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:00,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:28:00,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:28:00,530 INFO L87 Difference]: Start difference. First operand 304 states and 419 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:28:00,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:00,663 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2025-03-17 15:28:00,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:28:00,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 51 [2025-03-17 15:28:00,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:00,665 INFO L225 Difference]: With dead ends: 471 [2025-03-17 15:28:00,665 INFO L226 Difference]: Without dead ends: 469 [2025-03-17 15:28:00,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:28:00,665 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 124 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:00,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 303 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2025-03-17 15:28:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 410. [2025-03-17 15:28:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 340 states have (on average 1.45) internal successors, (493), 359 states have internal predecessors, (493), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-17 15:28:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 583 transitions. [2025-03-17 15:28:00,681 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 583 transitions. Word has length 51 [2025-03-17 15:28:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:00,681 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 583 transitions. [2025-03-17 15:28:00,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:28:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 583 transitions. [2025-03-17 15:28:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-17 15:28:00,682 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:00,682 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] [2025-03-17 15:28:00,688 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 15:28:00,882 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,SelfDestructingSolverStorable15 [2025-03-17 15:28:00,882 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:00,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 50861964, now seen corresponding path program 1 times [2025-03-17 15:28:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630455944] [2025-03-17 15:28:00,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:00,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:28:00,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:28:00,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:00,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,936 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 15:28:00,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:00,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630455944] [2025-03-17 15:28:00,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630455944] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182850450] [2025-03-17 15:28:00,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:00,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:00,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:00,938 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 15:28:00,940 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 15:28:00,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:28:00,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:28:00,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:00,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:00,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:28:00,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:28:01,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:28:01,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182850450] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:01,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:01,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2025-03-17 15:28:01,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452566430] [2025-03-17 15:28:01,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:01,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 15:28:01,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:01,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 15:28:01,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:28:01,132 INFO L87 Difference]: Start difference. First operand 410 states and 583 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2025-03-17 15:28:01,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:01,353 INFO L93 Difference]: Finished difference Result 474 states and 637 transitions. [2025-03-17 15:28:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 15:28:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 52 [2025-03-17 15:28:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:01,356 INFO L225 Difference]: With dead ends: 474 [2025-03-17 15:28:01,356 INFO L226 Difference]: Without dead ends: 468 [2025-03-17 15:28:01,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2025-03-17 15:28:01,357 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 285 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:01,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 626 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2025-03-17 15:28:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 439. [2025-03-17 15:28:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 367 states have (on average 1.4059945504087195) internal successors, (516), 386 states have internal predecessors, (516), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-17 15:28:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 606 transitions. [2025-03-17 15:28:01,377 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 606 transitions. Word has length 52 [2025-03-17 15:28:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:01,377 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 606 transitions. [2025-03-17 15:28:01,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2025-03-17 15:28:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 606 transitions. [2025-03-17 15:28:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-17 15:28:01,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:01,378 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] [2025-03-17 15:28:01,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:01,579 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,SelfDestructingSolverStorable16 [2025-03-17 15:28:01,579 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:01,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash -858511142, now seen corresponding path program 2 times [2025-03-17 15:28:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:01,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918091152] [2025-03-17 15:28:01,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:01,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:01,583 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-17 15:28:01,590 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 15:28:01,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:01,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:01,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542695920] [2025-03-17 15:28:01,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:01,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:01,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:01,593 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 15:28:01,594 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 15:28:01,614 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-17 15:28:01,626 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 15:28:01,627 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:01,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:01,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:28:01,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:01,723 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 15:28:01,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:01,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:01,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918091152] [2025-03-17 15:28:01,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:01,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542695920] [2025-03-17 15:28:01,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542695920] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:01,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:01,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:28:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713959155] [2025-03-17 15:28:01,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:01,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:28:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:01,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:28:01,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:28:01,855 INFO L87 Difference]: Start difference. First operand 439 states and 606 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 15:28:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:01,972 INFO L93 Difference]: Finished difference Result 580 states and 791 transitions. [2025-03-17 15:28:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:28:01,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 69 [2025-03-17 15:28:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:01,975 INFO L225 Difference]: With dead ends: 580 [2025-03-17 15:28:01,975 INFO L226 Difference]: Without dead ends: 576 [2025-03-17 15:28:01,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 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 15:28:01,975 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 132 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:01,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 161 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2025-03-17 15:28:01,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 489. [2025-03-17 15:28:01,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 411 states have (on average 1.391727493917275) internal successors, (572), 430 states have internal predecessors, (572), 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 15:28:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 674 transitions. [2025-03-17 15:28:01,993 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 674 transitions. Word has length 69 [2025-03-17 15:28:01,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:01,993 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 674 transitions. [2025-03-17 15:28:01,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 15:28:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 674 transitions. [2025-03-17 15:28:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 15:28:01,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:01,994 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] [2025-03-17 15:28:01,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:02,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 15:28:02,194 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:02,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash 484685085, now seen corresponding path program 1 times [2025-03-17 15:28:02,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:02,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029757035] [2025-03-17 15:28:02,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:02,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:02,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:28:02,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:28:02,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:02,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:02,243 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 15:28:02,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:02,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029757035] [2025-03-17 15:28:02,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029757035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:02,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:02,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:28:02,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186791208] [2025-03-17 15:28:02,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:02,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:28:02,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:02,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:28:02,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:28:02,244 INFO L87 Difference]: Start difference. First operand 489 states and 674 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:28:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:02,289 INFO L93 Difference]: Finished difference Result 489 states and 674 transitions. [2025-03-17 15:28:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:28:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2025-03-17 15:28:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:02,291 INFO L225 Difference]: With dead ends: 489 [2025-03-17 15:28:02,292 INFO L226 Difference]: Without dead ends: 488 [2025-03-17 15:28:02,292 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 15:28:02,292 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 112 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 15:28:02,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 112 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:28:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2025-03-17 15:28:02,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2025-03-17 15:28:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 411 states have (on average 1.3722627737226278) internal successors, (564), 429 states have internal predecessors, (564), 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 15:28:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 666 transitions. [2025-03-17 15:28:02,309 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 666 transitions. Word has length 76 [2025-03-17 15:28:02,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:02,309 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 666 transitions. [2025-03-17 15:28:02,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:28:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 666 transitions. [2025-03-17 15:28:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 15:28:02,310 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:02,310 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] [2025-03-17 15:28:02,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 15:28:02,310 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:02,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:02,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2140335732, now seen corresponding path program 1 times [2025-03-17 15:28:02,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:02,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274416251] [2025-03-17 15:28:02,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:02,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:02,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:28:02,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:28:02,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:02,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:02,422 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 15:28:02,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:02,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274416251] [2025-03-17 15:28:02,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274416251] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:02,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380055758] [2025-03-17 15:28:02,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:02,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:02,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:02,424 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 15:28:02,426 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 15:28:02,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:28:02,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:28:02,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:02,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:02,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:28:02,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:28:02,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380055758] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-17 15:28:02,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462737471] [2025-03-17 15:28:02,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:02,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:28:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:02,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:28:02,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:28:02,587 INFO L87 Difference]: Start difference. First operand 488 states and 666 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:28:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:02,673 INFO L93 Difference]: Finished difference Result 513 states and 688 transitions. [2025-03-17 15:28:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:28:02,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2025-03-17 15:28:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:02,675 INFO L225 Difference]: With dead ends: 513 [2025-03-17 15:28:02,675 INFO L226 Difference]: Without dead ends: 512 [2025-03-17 15:28:02,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:28:02,676 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:02,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 124 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2025-03-17 15:28:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 488. [2025-03-17 15:28:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 411 states have (on average 1.362530413625304) internal successors, (560), 429 states have internal predecessors, (560), 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 15:28:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 662 transitions. [2025-03-17 15:28:02,695 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 662 transitions. Word has length 77 [2025-03-17 15:28:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:02,695 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 662 transitions. [2025-03-17 15:28:02,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:28:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 662 transitions. [2025-03-17 15:28:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-17 15:28:02,696 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:02,696 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 15:28:02,702 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 15:28:02,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:02,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:02,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1925898235, now seen corresponding path program 1 times [2025-03-17 15:28:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:02,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979003947] [2025-03-17 15:28:02,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:02,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:02,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 15:28:02,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 15:28:02,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:02,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:28:03,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979003947] [2025-03-17 15:28:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979003947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:03,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:28:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355460398] [2025-03-17 15:28:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:28:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:03,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:28:03,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:28:03,011 INFO L87 Difference]: Start difference. First operand 488 states and 662 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:28:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:03,114 INFO L93 Difference]: Finished difference Result 517 states and 698 transitions. [2025-03-17 15:28:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:28:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2025-03-17 15:28:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:03,116 INFO L225 Difference]: With dead ends: 517 [2025-03-17 15:28:03,116 INFO L226 Difference]: Without dead ends: 516 [2025-03-17 15:28:03,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 15:28:03,117 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:03,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 122 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2025-03-17 15:28:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 500. [2025-03-17 15:28:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 423 states have (on average 1.3522458628841607) internal successors, (572), 441 states have internal predecessors, (572), 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 15:28:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 674 transitions. [2025-03-17 15:28:03,138 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 674 transitions. Word has length 78 [2025-03-17 15:28:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 674 transitions. [2025-03-17 15:28:03,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:28:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 674 transitions. [2025-03-17 15:28:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 15:28:03,139 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:03,139 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 15:28:03,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 15:28:03,139 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:03,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -426696878, now seen corresponding path program 1 times [2025-03-17 15:28:03,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:03,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355773564] [2025-03-17 15:28:03,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:03,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:03,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 15:28:03,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 15:28:03,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:03,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:03,254 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 15:28:03,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355773564] [2025-03-17 15:28:03,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355773564] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736390796] [2025-03-17 15:28:03,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:03,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:03,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:03,257 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 15:28:03,259 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 15:28:03,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 15:28:03,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 15:28:03,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:03,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:03,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:28:03,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:03,406 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 15:28:03,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736390796] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:03,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:03,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-17 15:28:03,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120440543] [2025-03-17 15:28:03,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:03,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:28:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:03,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:28:03,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:28:03,407 INFO L87 Difference]: Start difference. First operand 500 states and 674 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 15:28:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:03,472 INFO L93 Difference]: Finished difference Result 516 states and 687 transitions. [2025-03-17 15:28:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:28:03,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 79 [2025-03-17 15:28:03,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:03,474 INFO L225 Difference]: With dead ends: 516 [2025-03-17 15:28:03,474 INFO L226 Difference]: Without dead ends: 514 [2025-03-17 15:28:03,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 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 15:28:03,475 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 54 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:03,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 82 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:28:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2025-03-17 15:28:03,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2025-03-17 15:28:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 427 states have (on average 1.3302107728337236) internal successors, (568), 445 states have internal predecessors, (568), 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 15:28:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 670 transitions. [2025-03-17 15:28:03,495 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 670 transitions. Word has length 79 [2025-03-17 15:28:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:03,495 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 670 transitions. [2025-03-17 15:28:03,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 15:28:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 670 transitions. [2025-03-17 15:28:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 15:28:03,496 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:03,496 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] [2025-03-17 15:28:03,517 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 15:28:03,700 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,SelfDestructingSolverStorable21 [2025-03-17 15:28:03,700 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:03,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1138946261, now seen corresponding path program 1 times [2025-03-17 15:28:03,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:03,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359848762] [2025-03-17 15:28:03,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:03,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:03,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 15:28:03,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 15:28:03,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:03,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:03,779 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 15:28:03,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:03,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359848762] [2025-03-17 15:28:03,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359848762] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:03,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684055769] [2025-03-17 15:28:03,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:03,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:03,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:03,781 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 15:28:03,783 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 15:28:03,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 15:28:03,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 15:28:03,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:03,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:03,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:28:03,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:03,888 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 15:28:03,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:04,006 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 15:28:04,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684055769] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:04,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:04,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 18 [2025-03-17 15:28:04,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61145016] [2025-03-17 15:28:04,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:04,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 15:28:04,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:04,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 15:28:04,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:28:04,008 INFO L87 Difference]: Start difference. First operand 504 states and 670 transitions. Second operand has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2025-03-17 15:28:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:04,290 INFO L93 Difference]: Finished difference Result 701 states and 910 transitions. [2025-03-17 15:28:04,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 15:28:04,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 83 [2025-03-17 15:28:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:04,292 INFO L225 Difference]: With dead ends: 701 [2025-03-17 15:28:04,292 INFO L226 Difference]: Without dead ends: 568 [2025-03-17 15:28:04,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2025-03-17 15:28:04,293 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 151 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:04,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 570 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-17 15:28:04,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 550. [2025-03-17 15:28:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 463 states have (on average 1.306695464362851) internal successors, (605), 481 states have internal predecessors, (605), 57 states have call successors, (57), 11 states have call predecessors, (57), 11 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-03-17 15:28:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 719 transitions. [2025-03-17 15:28:04,313 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 719 transitions. Word has length 83 [2025-03-17 15:28:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:04,314 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 719 transitions. [2025-03-17 15:28:04,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2025-03-17 15:28:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 719 transitions. [2025-03-17 15:28:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-17 15:28:04,314 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:04,315 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] [2025-03-17 15:28:04,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:04,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:04,516 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:04,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash -9931201, now seen corresponding path program 1 times [2025-03-17 15:28:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041854319] [2025-03-17 15:28:04,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:04,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:04,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 15:28:04,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 15:28:04,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:04,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:04,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964805084] [2025-03-17 15:28:04,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:04,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:04,534 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 15:28:04,536 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 15:28:04,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 15:28:04,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 15:28:04,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:04,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:04,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:28:04,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:28:04,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:05,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041854319] [2025-03-17 15:28:05,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964805084] [2025-03-17 15:28:05,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964805084] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:05,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:05,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:28:05,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450673757] [2025-03-17 15:28:05,171 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:05,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:28:05,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:05,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:28:05,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:28:05,172 INFO L87 Difference]: Start difference. First operand 550 states and 719 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 15:28:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:05,292 INFO L93 Difference]: Finished difference Result 676 states and 902 transitions. [2025-03-17 15:28:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:28:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 84 [2025-03-17 15:28:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:05,295 INFO L225 Difference]: With dead ends: 676 [2025-03-17 15:28:05,295 INFO L226 Difference]: Without dead ends: 675 [2025-03-17 15:28:05,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:28:05,296 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 98 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:05,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 116 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2025-03-17 15:28:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 631. [2025-03-17 15:28:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 538 states have (on average 1.3327137546468402) internal successors, (717), 556 states have internal predecessors, (717), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-17 15:28:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 843 transitions. [2025-03-17 15:28:05,338 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 843 transitions. Word has length 84 [2025-03-17 15:28:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:05,338 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 843 transitions. [2025-03-17 15:28:05,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 15:28:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 843 transitions. [2025-03-17 15:28:05,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 15:28:05,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:05,339 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] [2025-03-17 15:28:05,345 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 15:28:05,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:05,540 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:05,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -307867220, now seen corresponding path program 1 times [2025-03-17 15:28:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886877480] [2025-03-17 15:28:05,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:05,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:05,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 15:28:05,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:28:05,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:05,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:05,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697742489] [2025-03-17 15:28:05,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:05,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:05,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:05,556 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 15:28:05,558 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 15:28:05,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 15:28:05,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:28:05,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:05,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:05,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:28:05,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-03-17 15:28:05,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:06,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:06,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886877480] [2025-03-17 15:28:06,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:06,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697742489] [2025-03-17 15:28:06,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697742489] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:06,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:06,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:28:06,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786135602] [2025-03-17 15:28:06,084 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:06,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:28:06,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:06,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:28:06,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:28:06,086 INFO L87 Difference]: Start difference. First operand 631 states and 843 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 15:28:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:06,159 INFO L93 Difference]: Finished difference Result 641 states and 848 transitions. [2025-03-17 15:28:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:28:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 85 [2025-03-17 15:28:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:06,161 INFO L225 Difference]: With dead ends: 641 [2025-03-17 15:28:06,162 INFO L226 Difference]: Without dead ends: 638 [2025-03-17 15:28:06,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:28:06,162 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 79 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:06,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 83 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2025-03-17 15:28:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 629. [2025-03-17 15:28:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 538 states have (on average 1.2843866171003717) internal successors, (691), 554 states have internal predecessors, (691), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-17 15:28:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 817 transitions. [2025-03-17 15:28:06,186 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 817 transitions. Word has length 85 [2025-03-17 15:28:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:06,186 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 817 transitions. [2025-03-17 15:28:06,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 15:28:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 817 transitions. [2025-03-17 15:28:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 15:28:06,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:06,187 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] [2025-03-17 15:28:06,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:06,388 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,SelfDestructingSolverStorable24 [2025-03-17 15:28:06,388 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:06,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:06,389 INFO L85 PathProgramCache]: Analyzing trace with hash -953949219, now seen corresponding path program 1 times [2025-03-17 15:28:06,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:06,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851848832] [2025-03-17 15:28:06,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:06,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:06,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 15:28:06,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 15:28:06,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:06,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:06,442 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 15:28:06,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:06,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851848832] [2025-03-17 15:28:06,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851848832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:06,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:06,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:28:06,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190826583] [2025-03-17 15:28:06,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:06,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:28:06,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:06,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:28:06,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:28:06,443 INFO L87 Difference]: Start difference. First operand 629 states and 817 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 15:28:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:06,591 INFO L93 Difference]: Finished difference Result 638 states and 825 transitions. [2025-03-17 15:28:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:28:06,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 86 [2025-03-17 15:28:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:06,594 INFO L225 Difference]: With dead ends: 638 [2025-03-17 15:28:06,594 INFO L226 Difference]: Without dead ends: 637 [2025-03-17 15:28:06,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:28:06,594 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:06,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 170 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:06,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2025-03-17 15:28:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 628. [2025-03-17 15:28:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 538 states have (on average 1.254646840148699) internal successors, (675), 553 states have internal predecessors, (675), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-17 15:28:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 801 transitions. [2025-03-17 15:28:06,620 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 801 transitions. Word has length 86 [2025-03-17 15:28:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:06,620 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 801 transitions. [2025-03-17 15:28:06,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 15:28:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 801 transitions. [2025-03-17 15:28:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-17 15:28:06,621 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:06,621 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] [2025-03-17 15:28:06,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-17 15:28:06,621 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:06,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash 492345290, now seen corresponding path program 1 times [2025-03-17 15:28:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:06,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473280566] [2025-03-17 15:28:06,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:06,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:06,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 15:28:06,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:28:06,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:06,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:06,735 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 15:28:06,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473280566] [2025-03-17 15:28:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473280566] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247367281] [2025-03-17 15:28:06,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:06,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:06,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:06,737 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 15:28:06,739 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 15:28:06,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 15:28:06,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:28:06,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:06,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:06,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 15:28:06,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:07,084 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 15:28:07,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:07,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247367281] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:07,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:28:07,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-03-17 15:28:07,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468632371] [2025-03-17 15:28:07,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:07,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 15:28:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:07,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 15:28:07,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:28:07,601 INFO L87 Difference]: Start difference. First operand 628 states and 801 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 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 15:28:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:08,444 INFO L93 Difference]: Finished difference Result 955 states and 1253 transitions. [2025-03-17 15:28:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 15:28:08,445 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 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 87 [2025-03-17 15:28:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:08,448 INFO L225 Difference]: With dead ends: 955 [2025-03-17 15:28:08,448 INFO L226 Difference]: Without dead ends: 946 [2025-03-17 15:28:08,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2025-03-17 15:28:08,449 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 625 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:08,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 349 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:28:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2025-03-17 15:28:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 741. [2025-03-17 15:28:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 641 states have (on average 1.265210608424337) internal successors, (811), 656 states have internal predecessors, (811), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2025-03-17 15:28:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 957 transitions. [2025-03-17 15:28:08,480 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 957 transitions. Word has length 87 [2025-03-17 15:28:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:08,481 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 957 transitions. [2025-03-17 15:28:08,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 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 15:28:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 957 transitions. [2025-03-17 15:28:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-17 15:28:08,484 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:08,484 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] [2025-03-17 15:28:08,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-17 15:28:08,684 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,SelfDestructingSolverStorable26 [2025-03-17 15:28:08,684 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:08,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:08,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1566781324, now seen corresponding path program 1 times [2025-03-17 15:28:08,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:08,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2893271] [2025-03-17 15:28:08,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:08,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:08,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 15:28:08,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 15:28:08,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:08,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291514350] [2025-03-17 15:28:08,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:08,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:08,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:08,703 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 15:28:08,705 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 15:28:08,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 15:28:08,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 15:28:08,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:08,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:08,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 15:28:08,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-17 15:28:08,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2893271] [2025-03-17 15:28:09,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291514350] [2025-03-17 15:28:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291514350] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:09,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-17 15:28:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360662700] [2025-03-17 15:28:09,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:09,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:28:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:09,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:28:09,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:28:09,288 INFO L87 Difference]: Start difference. First operand 741 states and 957 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 15:28:09,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:09,559 INFO L93 Difference]: Finished difference Result 767 states and 974 transitions. [2025-03-17 15:28:09,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:28:09,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2025-03-17 15:28:09,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:09,562 INFO L225 Difference]: With dead ends: 767 [2025-03-17 15:28:09,562 INFO L226 Difference]: Without dead ends: 592 [2025-03-17 15:28:09,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:28:09,562 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 16 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:09,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 295 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:28:09,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2025-03-17 15:28:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 588. [2025-03-17 15:28:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 500 states have (on average 1.254) internal successors, (627), 515 states have internal predecessors, (627), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-03-17 15:28:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 749 transitions. [2025-03-17 15:28:09,587 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 749 transitions. Word has length 101 [2025-03-17 15:28:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:09,587 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 749 transitions. [2025-03-17 15:28:09,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 15:28:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 749 transitions. [2025-03-17 15:28:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-17 15:28:09,589 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:09,589 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 15:28:09,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-17 15:28:09,789 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,SelfDestructingSolverStorable27 [2025-03-17 15:28:09,789 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:09,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:09,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1856667794, now seen corresponding path program 1 times [2025-03-17 15:28:09,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:09,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989825493] [2025-03-17 15:28:09,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:09,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:09,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-17 15:28:09,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 15:28:09,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:09,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:09,836 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 15:28:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989825493] [2025-03-17 15:28:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989825493] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:09,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:09,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:28:09,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492922720] [2025-03-17 15:28:09,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:09,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:28:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:09,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:28:09,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:28:09,838 INFO L87 Difference]: Start difference. First operand 588 states and 749 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 15:28:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:09,941 INFO L93 Difference]: Finished difference Result 592 states and 750 transitions. [2025-03-17 15:28:09,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:28:09,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 103 [2025-03-17 15:28:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:09,943 INFO L225 Difference]: With dead ends: 592 [2025-03-17 15:28:09,943 INFO L226 Difference]: Without dead ends: 549 [2025-03-17 15:28:09,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:28:09,944 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 32 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:09,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 226 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-03-17 15:28:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 544. [2025-03-17 15:28:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 462 states have (on average 1.2705627705627707) internal successors, (587), 476 states have internal predecessors, (587), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-03-17 15:28:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 701 transitions. [2025-03-17 15:28:09,965 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 701 transitions. Word has length 103 [2025-03-17 15:28:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:09,965 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 701 transitions. [2025-03-17 15:28:09,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 15:28:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 701 transitions. [2025-03-17 15:28:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-17 15:28:09,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:09,965 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] [2025-03-17 15:28:09,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-17 15:28:09,965 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:09,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:09,966 INFO L85 PathProgramCache]: Analyzing trace with hash 994125722, now seen corresponding path program 1 times [2025-03-17 15:28:09,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:09,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007387753] [2025-03-17 15:28:09,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:09,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 15:28:09,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 15:28:09,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:09,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:10,013 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 15:28:10,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:10,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007387753] [2025-03-17 15:28:10,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007387753] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:10,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293520023] [2025-03-17 15:28:10,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:10,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:10,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:10,016 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 15:28:10,017 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 15:28:10,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 15:28:10,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 15:28:10,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:10,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:10,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:28:10,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:10,103 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 15:28:10,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:10,197 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 15:28:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293520023] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:10,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:10,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 15:28:10,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114747142] [2025-03-17 15:28:10,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:10,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:28:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:10,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:28:10,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:28:10,198 INFO L87 Difference]: Start difference. First operand 544 states and 701 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2025-03-17 15:28:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:10,389 INFO L93 Difference]: Finished difference Result 1064 states and 1358 transitions. [2025-03-17 15:28:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:28:10,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 105 [2025-03-17 15:28:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:10,392 INFO L225 Difference]: With dead ends: 1064 [2025-03-17 15:28:10,392 INFO L226 Difference]: Without dead ends: 1062 [2025-03-17 15:28:10,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:28:10,394 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 416 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:10,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 393 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2025-03-17 15:28:10,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 704. [2025-03-17 15:28:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 604 states have (on average 1.2798013245033113) internal successors, (773), 618 states have internal predecessors, (773), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-17 15:28:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 923 transitions. [2025-03-17 15:28:10,425 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 923 transitions. Word has length 105 [2025-03-17 15:28:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:10,425 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 923 transitions. [2025-03-17 15:28:10,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2025-03-17 15:28:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 923 transitions. [2025-03-17 15:28:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 15:28:10,430 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:10,430 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:10,436 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 15:28:10,630 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 15:28:10,631 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:10,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:10,631 INFO L85 PathProgramCache]: Analyzing trace with hash -190576907, now seen corresponding path program 2 times [2025-03-17 15:28:10,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:10,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526565705] [2025-03-17 15:28:10,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:10,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:10,635 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:28:10,643 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:28:10,643 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:10,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:10,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679954932] [2025-03-17 15:28:10,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:10,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:10,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:10,646 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 15:28:10,647 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 15:28:10,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:28:10,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:28:10,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:10,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:10,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 15:28:10,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 15:28:11,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:11,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:11,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526565705] [2025-03-17 15:28:11,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:11,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679954932] [2025-03-17 15:28:11,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679954932] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:11,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:11,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:28:11,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421675423] [2025-03-17 15:28:11,575 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:11,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:28:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:11,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:28:11,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:28:11,576 INFO L87 Difference]: Start difference. First operand 704 states and 923 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:28:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:11,946 INFO L93 Difference]: Finished difference Result 732 states and 958 transitions. [2025-03-17 15:28:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:28:11,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2025-03-17 15:28:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:11,949 INFO L225 Difference]: With dead ends: 732 [2025-03-17 15:28:11,949 INFO L226 Difference]: Without dead ends: 731 [2025-03-17 15:28:11,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:28:11,949 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:11,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 447 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2025-03-17 15:28:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 704. [2025-03-17 15:28:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 604 states have (on average 1.2781456953642385) internal successors, (772), 618 states have internal predecessors, (772), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-17 15:28:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 922 transitions. [2025-03-17 15:28:11,976 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 922 transitions. Word has length 113 [2025-03-17 15:28:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:11,977 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 922 transitions. [2025-03-17 15:28:11,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-17 15:28:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 922 transitions. [2025-03-17 15:28:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-03-17 15:28:11,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:11,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:11,984 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 15:28:12,182 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 15:28:12,182 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:12,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:12,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2134529629, now seen corresponding path program 1 times [2025-03-17 15:28:12,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:12,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548942307] [2025-03-17 15:28:12,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:12,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:12,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-17 15:28:12,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-17 15:28:12,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:12,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:12,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:12,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548942307] [2025-03-17 15:28:12,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548942307] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:12,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987546521] [2025-03-17 15:28:12,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:12,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:12,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:12,251 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 15:28:12,252 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 15:28:12,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-17 15:28:12,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-17 15:28:12,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:12,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:12,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:28:12,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2025-03-17 15:28:12,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:12,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987546521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:12,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:12,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-03-17 15:28:12,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612408390] [2025-03-17 15:28:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:12,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:28:12,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:12,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:28:12,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:28:12,454 INFO L87 Difference]: Start difference. First operand 704 states and 922 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 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 15:28:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:12,512 INFO L93 Difference]: Finished difference Result 710 states and 924 transitions. [2025-03-17 15:28:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:28:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 126 [2025-03-17 15:28:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:12,515 INFO L225 Difference]: With dead ends: 710 [2025-03-17 15:28:12,515 INFO L226 Difference]: Without dead ends: 705 [2025-03-17 15:28:12,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:28:12,517 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:12,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:28:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2025-03-17 15:28:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 698. [2025-03-17 15:28:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 598 states have (on average 1.2525083612040133) internal successors, (749), 612 states have internal predecessors, (749), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-17 15:28:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 899 transitions. [2025-03-17 15:28:12,544 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 899 transitions. Word has length 126 [2025-03-17 15:28:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:12,544 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 899 transitions. [2025-03-17 15:28:12,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 15:28:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 899 transitions. [2025-03-17 15:28:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-17 15:28:12,545 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:12,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:12,551 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 15:28:12,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:12,749 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:12,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:12,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1785407393, now seen corresponding path program 2 times [2025-03-17 15:28:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172305729] [2025-03-17 15:28:12,749 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:12,753 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 127 statements into 2 equivalence classes. [2025-03-17 15:28:12,757 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:28:12,757 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:12,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 14 proven. 33 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172305729] [2025-03-17 15:28:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172305729] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865667684] [2025-03-17 15:28:12,852 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:12,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:12,854 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 15:28:12,856 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 15:28:12,885 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 127 statements into 2 equivalence classes. [2025-03-17 15:28:12,908 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:28:12,908 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:12,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:12,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:28:12,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:12,976 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:13,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865667684] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:13,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:13,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2025-03-17 15:28:13,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922842826] [2025-03-17 15:28:13,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:13,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:28:13,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:13,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:28:13,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:28:13,088 INFO L87 Difference]: Start difference. First operand 698 states and 899 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2025-03-17 15:28:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:13,175 INFO L93 Difference]: Finished difference Result 721 states and 917 transitions. [2025-03-17 15:28:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:28:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 127 [2025-03-17 15:28:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:13,180 INFO L225 Difference]: With dead ends: 721 [2025-03-17 15:28:13,180 INFO L226 Difference]: Without dead ends: 714 [2025-03-17 15:28:13,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 250 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:28:13,181 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 79 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:13,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 236 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2025-03-17 15:28:13,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 698. [2025-03-17 15:28:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 598 states have (on average 1.245819397993311) internal successors, (745), 612 states have internal predecessors, (745), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-17 15:28:13,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 895 transitions. [2025-03-17 15:28:13,211 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 895 transitions. Word has length 127 [2025-03-17 15:28:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:13,211 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 895 transitions. [2025-03-17 15:28:13,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2025-03-17 15:28:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 895 transitions. [2025-03-17 15:28:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-17 15:28:13,212 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:13,212 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] [2025-03-17 15:28:13,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:13,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:13,413 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:13,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:13,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1374827353, now seen corresponding path program 2 times [2025-03-17 15:28:13,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:13,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415365888] [2025-03-17 15:28:13,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:13,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:13,420 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-03-17 15:28:13,425 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:28:13,425 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:13,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415365888] [2025-03-17 15:28:13,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415365888] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277988713] [2025-03-17 15:28:13,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:13,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:13,488 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 15:28:13,490 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 15:28:13,520 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-03-17 15:28:13,540 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:28:13,540 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:13,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:13,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:28:13,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:13,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:13,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277988713] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:13,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:13,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-03-17 15:28:13,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727920518] [2025-03-17 15:28:13,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:13,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:28:13,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:13,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:28:13,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:28:13,720 INFO L87 Difference]: Start difference. First operand 698 states and 895 transitions. Second operand has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-03-17 15:28:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:13,961 INFO L93 Difference]: Finished difference Result 1540 states and 2015 transitions. [2025-03-17 15:28:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:28:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 129 [2025-03-17 15:28:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:13,966 INFO L225 Difference]: With dead ends: 1540 [2025-03-17 15:28:13,966 INFO L226 Difference]: Without dead ends: 1538 [2025-03-17 15:28:13,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:28:13,967 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 458 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:13,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 491 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:28:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2025-03-17 15:28:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 724. [2025-03-17 15:28:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 618 states have (on average 1.2362459546925566) internal successors, (764), 632 states have internal predecessors, (764), 81 states have call successors, (81), 10 states have call predecessors, (81), 10 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-17 15:28:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 926 transitions. [2025-03-17 15:28:14,002 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 926 transitions. Word has length 129 [2025-03-17 15:28:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:14,002 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 926 transitions. [2025-03-17 15:28:14,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-03-17 15:28:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 926 transitions. [2025-03-17 15:28:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-17 15:28:14,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:14,004 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:14,010 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 15:28:14,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:14,208 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 15:28:14,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:14,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1710879505, now seen corresponding path program 1 times [2025-03-17 15:28:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327214217] [2025-03-17 15:28:14,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:14,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-17 15:28:14,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:28:14,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:14,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:14,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:14,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327214217] [2025-03-17 15:28:14,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327214217] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:14,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981812800] [2025-03-17 15:28:14,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:14,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:14,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:14,341 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 15:28:14,343 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 15:28:14,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-17 15:28:14,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 15:28:14,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:14,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:14,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:28:14,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:14,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:14,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981812800] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:14,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:14,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2025-03-17 15:28:14,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078478833] [2025-03-17 15:28:14,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:14,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-17 15:28:14,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:14,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-17 15:28:14,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:28:14,979 INFO L87 Difference]: Start difference. First operand 724 states and 926 transitions. Second operand has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 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 15:28:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:15,463 INFO L93 Difference]: Finished difference Result 1023 states and 1311 transitions. [2025-03-17 15:28:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 15:28:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 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 129 [2025-03-17 15:28:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:15,467 INFO L225 Difference]: With dead ends: 1023 [2025-03-17 15:28:15,467 INFO L226 Difference]: Without dead ends: 913 [2025-03-17 15:28:15,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=346, Invalid=914, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 15:28:15,468 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 431 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:15,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 617 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:15,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2025-03-17 15:28:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 710. [2025-03-17 15:28:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 600 states have (on average 1.26) internal successors, (756), 614 states have internal predecessors, (756), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-17 15:28:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 926 transitions. [2025-03-17 15:28:15,504 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 926 transitions. Word has length 129 [2025-03-17 15:28:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:15,505 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 926 transitions. [2025-03-17 15:28:15,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 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 15:28:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 926 transitions. [2025-03-17 15:28:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-17 15:28:15,506 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:15,506 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, 1, 1, 1, 1, 1] [2025-03-17 15:28:15,512 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 15:28:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:15,712 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:15,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:15,712 INFO L85 PathProgramCache]: Analyzing trace with hash 326912645, now seen corresponding path program 1 times [2025-03-17 15:28:15,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:15,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463769966] [2025-03-17 15:28:15,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:15,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:15,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-17 15:28:15,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:28:15,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:15,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-03-17 15:28:15,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463769966] [2025-03-17 15:28:15,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463769966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751797667] [2025-03-17 15:28:15,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:15,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:15,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:15,868 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 15:28:15,870 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 15:28:15,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-17 15:28:15,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:28:15,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:15,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:15,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:28:15,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:16,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751797667] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:18,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2025-03-17 15:28:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109600799] [2025-03-17 15:28:18,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:18,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 15:28:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:18,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 15:28:18,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:28:18,235 INFO L87 Difference]: Start difference. First operand 710 states and 926 transitions. Second operand has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-17 15:28:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:18,603 INFO L93 Difference]: Finished difference Result 955 states and 1277 transitions. [2025-03-17 15:28:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:28:18,604 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 134 [2025-03-17 15:28:18,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:18,606 INFO L225 Difference]: With dead ends: 955 [2025-03-17 15:28:18,606 INFO L226 Difference]: Without dead ends: 954 [2025-03-17 15:28:18,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:28:18,607 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 352 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:18,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 339 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:18,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2025-03-17 15:28:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 709. [2025-03-17 15:28:18,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 600 states have (on average 1.2533333333333334) internal successors, (752), 613 states have internal predecessors, (752), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-17 15:28:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 922 transitions. [2025-03-17 15:28:18,645 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 922 transitions. Word has length 134 [2025-03-17 15:28:18,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:18,646 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 922 transitions. [2025-03-17 15:28:18,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-17 15:28:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 922 transitions. [2025-03-17 15:28:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-17 15:28:18,647 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:18,647 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:18,653 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 15:28:18,847 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,SelfDestructingSolverStorable35 [2025-03-17 15:28:18,848 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:18,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash 326976198, now seen corresponding path program 1 times [2025-03-17 15:28:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:18,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662512939] [2025-03-17 15:28:18,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:18,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:18,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-17 15:28:18,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:28:18,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:18,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:18,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:18,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662512939] [2025-03-17 15:28:18,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662512939] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:18,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897787294] [2025-03-17 15:28:18,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:18,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:18,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:18,984 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 15:28:18,985 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 15:28:19,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-17 15:28:19,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:28:19,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:19,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:19,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:28:19,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 320 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-17 15:28:19,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:19,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897787294] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:19,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:19,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2025-03-17 15:28:19,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476616014] [2025-03-17 15:28:19,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:19,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-17 15:28:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:19,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-17 15:28:19,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 15:28:19,480 INFO L87 Difference]: Start difference. First operand 709 states and 922 transitions. Second operand has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2025-03-17 15:28:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:20,007 INFO L93 Difference]: Finished difference Result 2138 states and 2839 transitions. [2025-03-17 15:28:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-03-17 15:28:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) Word has length 134 [2025-03-17 15:28:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:20,016 INFO L225 Difference]: With dead ends: 2138 [2025-03-17 15:28:20,016 INFO L226 Difference]: Without dead ends: 2130 [2025-03-17 15:28:20,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=926, Invalid=2980, Unknown=0, NotChecked=0, Total=3906 [2025-03-17 15:28:20,018 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 423 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:20,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 927 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:28:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2025-03-17 15:28:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2035. [2025-03-17 15:28:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 1795 states have (on average 1.2763231197771587) internal successors, (2291), 1808 states have internal predecessors, (2291), 209 states have call successors, (209), 17 states have call predecessors, (209), 17 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2025-03-17 15:28:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2709 transitions. [2025-03-17 15:28:20,111 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2709 transitions. Word has length 134 [2025-03-17 15:28:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:20,112 INFO L471 AbstractCegarLoop]: Abstraction has 2035 states and 2709 transitions. [2025-03-17 15:28:20,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2025-03-17 15:28:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2709 transitions. [2025-03-17 15:28:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 15:28:20,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:20,113 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] [2025-03-17 15:28:20,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:20,314 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,SelfDestructingSolverStorable36 [2025-03-17 15:28:20,314 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:20,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1544357384, now seen corresponding path program 1 times [2025-03-17 15:28:20,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:20,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810532115] [2025-03-17 15:28:20,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:20,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:28:20,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:28:20,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:20,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:20,459 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 15:28:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810532115] [2025-03-17 15:28:20,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810532115] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43082136] [2025-03-17 15:28:20,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:20,462 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 15:28:20,463 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 15:28:20,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:28:20,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:28:20,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:20,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:20,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:28:20,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:20,735 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 15:28:20,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:21,847 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 15:28:21,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43082136] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:21,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:21,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-03-17 15:28:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865610710] [2025-03-17 15:28:21,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:21,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 15:28:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:21,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 15:28:21,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:28:21,853 INFO L87 Difference]: Start difference. First operand 2035 states and 2709 transitions. Second operand has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 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 15:28:22,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:22,697 INFO L93 Difference]: Finished difference Result 2839 states and 3772 transitions. [2025-03-17 15:28:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:28:22,697 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 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 135 [2025-03-17 15:28:22,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:22,705 INFO L225 Difference]: With dead ends: 2839 [2025-03-17 15:28:22,705 INFO L226 Difference]: Without dead ends: 2838 [2025-03-17 15:28:22,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=424, Invalid=698, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 15:28:22,706 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 580 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:22,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 780 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:28:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2025-03-17 15:28:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2530. [2025-03-17 15:28:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2248 states have (on average 1.2740213523131672) internal successors, (2864), 2261 states have internal predecessors, (2864), 251 states have call successors, (251), 17 states have call predecessors, (251), 17 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2025-03-17 15:28:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3366 transitions. [2025-03-17 15:28:22,822 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3366 transitions. Word has length 135 [2025-03-17 15:28:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:22,823 INFO L471 AbstractCegarLoop]: Abstraction has 2530 states and 3366 transitions. [2025-03-17 15:28:22,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 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 15:28:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3366 transitions. [2025-03-17 15:28:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-17 15:28:22,824 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:22,824 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] [2025-03-17 15:28:22,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:23,024 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,SelfDestructingSolverStorable37 [2025-03-17 15:28:23,025 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:23,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 214630246, now seen corresponding path program 1 times [2025-03-17 15:28:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:23,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252606624] [2025-03-17 15:28:23,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:23,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-17 15:28:23,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-17 15:28:23,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:23,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:23,157 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 15:28:23,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:23,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252606624] [2025-03-17 15:28:23,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252606624] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:23,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257820007] [2025-03-17 15:28:23,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:23,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:23,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:23,159 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 15:28:23,161 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 15:28:23,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-17 15:28:23,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-17 15:28:23,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:23,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:23,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:28:23,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 388 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 15:28:23,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:23,465 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 15:28:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257820007] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:23,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:23,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 24 [2025-03-17 15:28:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683503256] [2025-03-17 15:28:23,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:23,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 15:28:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:23,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 15:28:23,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:28:23,467 INFO L87 Difference]: Start difference. First operand 2530 states and 3366 transitions. Second operand has 24 states, 24 states have (on average 6.208333333333333) internal successors, (149), 24 states have internal predecessors, (149), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2025-03-17 15:28:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:23,907 INFO L93 Difference]: Finished difference Result 3257 states and 4258 transitions. [2025-03-17 15:28:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-17 15:28:23,907 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.208333333333333) internal successors, (149), 24 states have internal predecessors, (149), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 136 [2025-03-17 15:28:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:23,915 INFO L225 Difference]: With dead ends: 3257 [2025-03-17 15:28:23,915 INFO L226 Difference]: Without dead ends: 2772 [2025-03-17 15:28:23,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=574, Invalid=1876, Unknown=0, NotChecked=0, Total=2450 [2025-03-17 15:28:23,918 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 169 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:23,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 605 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2025-03-17 15:28:24,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2746. [2025-03-17 15:28:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2442 states have (on average 1.2571662571662572) internal successors, (3070), 2455 states have internal predecessors, (3070), 265 states have call successors, (265), 25 states have call predecessors, (265), 25 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2025-03-17 15:28:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3600 transitions. [2025-03-17 15:28:24,043 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3600 transitions. Word has length 136 [2025-03-17 15:28:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:24,044 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 3600 transitions. [2025-03-17 15:28:24,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.208333333333333) internal successors, (149), 24 states have internal predecessors, (149), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2025-03-17 15:28:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3600 transitions. [2025-03-17 15:28:24,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 15:28:24,045 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:24,045 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:24,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:24,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-17 15:28:24,246 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:24,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1156544928, now seen corresponding path program 3 times [2025-03-17 15:28:24,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:24,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442672035] [2025-03-17 15:28:24,247 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:28:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:24,251 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 139 statements into 6 equivalence classes. [2025-03-17 15:28:24,271 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 15:28:24,271 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 15:28:24,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:24,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533808026] [2025-03-17 15:28:24,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:28:24,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:24,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:24,276 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 15:28:24,277 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 15:28:24,305 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 139 statements into 6 equivalence classes. [2025-03-17 15:28:24,318 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 49 of 139 statements. [2025-03-17 15:28:24,318 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 15:28:24,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:24,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 15:28:24,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2025-03-17 15:28:24,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:39,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442672035] [2025-03-17 15:28:39,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533808026] [2025-03-17 15:28:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533808026] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:39,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:39,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-17 15:28:39,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638633987] [2025-03-17 15:28:39,516 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:39,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:28:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:39,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:28:39,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=178, Unknown=3, NotChecked=0, Total=240 [2025-03-17 15:28:39,517 INFO L87 Difference]: Start difference. First operand 2746 states and 3600 transitions. Second operand has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:28:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:39,974 INFO L93 Difference]: Finished difference Result 2811 states and 3664 transitions. [2025-03-17 15:28:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:28:39,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 139 [2025-03-17 15:28:39,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:39,989 INFO L225 Difference]: With dead ends: 2811 [2025-03-17 15:28:39,989 INFO L226 Difference]: Without dead ends: 2810 [2025-03-17 15:28:39,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=99, Invalid=278, Unknown=3, NotChecked=0, Total=380 [2025-03-17 15:28:39,993 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 103 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:39,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 158 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2025-03-17 15:28:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2746. [2025-03-17 15:28:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2442 states have (on average 1.2493857493857494) internal successors, (3051), 2455 states have internal predecessors, (3051), 265 states have call successors, (265), 25 states have call predecessors, (265), 25 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2025-03-17 15:28:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3581 transitions. [2025-03-17 15:28:40,136 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3581 transitions. Word has length 139 [2025-03-17 15:28:40,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:40,136 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 3581 transitions. [2025-03-17 15:28:40,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 15:28:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3581 transitions. [2025-03-17 15:28:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-17 15:28:40,137 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:40,137 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:28:40,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-17 15:28:40,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-17 15:28:40,337 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:40,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:40,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1878937929, now seen corresponding path program 2 times [2025-03-17 15:28:40,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:40,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396444618] [2025-03-17 15:28:40,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:40,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:40,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 140 statements into 2 equivalence classes. [2025-03-17 15:28:40,354 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 140 of 140 statements. [2025-03-17 15:28:40,355 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:28:40,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:40,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176658519] [2025-03-17 15:28:40,355 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:28:40,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:40,359 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:40,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-17 15:28:40,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 140 statements into 2 equivalence classes. [2025-03-17 15:28:40,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 140 statements. [2025-03-17 15:28:40,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:28:40,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:40,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:28:40,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2025-03-17 15:28:40,498 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:40,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:40,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396444618] [2025-03-17 15:28:40,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:40,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176658519] [2025-03-17 15:28:40,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176658519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:40,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:40,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:28:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602996103] [2025-03-17 15:28:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:40,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:28:40,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:40,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:28:40,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:28:40,499 INFO L87 Difference]: Start difference. First operand 2746 states and 3581 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 15:28:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:40,662 INFO L93 Difference]: Finished difference Result 2746 states and 3581 transitions. [2025-03-17 15:28:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:28:40,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 140 [2025-03-17 15:28:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:40,674 INFO L225 Difference]: With dead ends: 2746 [2025-03-17 15:28:40,675 INFO L226 Difference]: Without dead ends: 2745 [2025-03-17 15:28:40,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:28:40,676 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 66 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:40,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 86 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2025-03-17 15:28:40,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2570. [2025-03-17 15:28:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2285 states have (on average 1.2192560175054705) internal successors, (2786), 2297 states have internal predecessors, (2786), 247 states have call successors, (247), 25 states have call predecessors, (247), 25 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2025-03-17 15:28:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3280 transitions. [2025-03-17 15:28:40,808 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3280 transitions. Word has length 140 [2025-03-17 15:28:40,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:40,808 INFO L471 AbstractCegarLoop]: Abstraction has 2570 states and 3280 transitions. [2025-03-17 15:28:40,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 15:28:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3280 transitions. [2025-03-17 15:28:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-03-17 15:28:40,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:40,809 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:28:40,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-17 15:28:41,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2025-03-17 15:28:41,010 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:41,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:41,011 INFO L85 PathProgramCache]: Analyzing trace with hash -868915072, now seen corresponding path program 4 times [2025-03-17 15:28:41,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769399553] [2025-03-17 15:28:41,011 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:28:41,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:41,015 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 143 statements into 2 equivalence classes. [2025-03-17 15:28:41,027 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 15:28:41,027 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:28:41,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:41,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769399553] [2025-03-17 15:28:41,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769399553] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077420449] [2025-03-17 15:28:41,210 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:28:41,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:41,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:41,212 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:41,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-17 15:28:41,234 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 143 statements into 2 equivalence classes. [2025-03-17 15:28:41,256 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 15:28:41,256 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:28:41,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:41,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 15:28:41,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 15:28:41,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:42,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077420449] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:42,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:28:42,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2025-03-17 15:28:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179868509] [2025-03-17 15:28:42,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:42,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 15:28:42,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:42,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 15:28:42,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:28:42,031 INFO L87 Difference]: Start difference. First operand 2570 states and 3280 transitions. Second operand has 23 states, 22 states have (on average 7.2272727272727275) internal successors, (159), 23 states have internal predecessors, (159), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-03-17 15:28:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:42,857 INFO L93 Difference]: Finished difference Result 2694 states and 3432 transitions. [2025-03-17 15:28:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:28:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.2272727272727275) internal successors, (159), 23 states have internal predecessors, (159), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 143 [2025-03-17 15:28:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:42,863 INFO L225 Difference]: With dead ends: 2694 [2025-03-17 15:28:42,863 INFO L226 Difference]: Without dead ends: 2687 [2025-03-17 15:28:42,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 147 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2025-03-17 15:28:42,864 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 238 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:42,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 743 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:28:42,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2025-03-17 15:28:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2571. [2025-03-17 15:28:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2286 states have (on average 1.2178477690288714) internal successors, (2784), 2298 states have internal predecessors, (2784), 247 states have call successors, (247), 25 states have call predecessors, (247), 25 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2025-03-17 15:28:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3278 transitions. [2025-03-17 15:28:43,010 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3278 transitions. Word has length 143 [2025-03-17 15:28:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:43,010 INFO L471 AbstractCegarLoop]: Abstraction has 2571 states and 3278 transitions. [2025-03-17 15:28:43,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.2272727272727275) internal successors, (159), 23 states have internal predecessors, (159), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-03-17 15:28:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3278 transitions. [2025-03-17 15:28:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-17 15:28:43,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:43,011 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:43,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-17 15:28:43,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:43,212 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:43,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:43,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1182211329, now seen corresponding path program 1 times [2025-03-17 15:28:43,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:43,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214746136] [2025-03-17 15:28:43,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:43,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:43,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-17 15:28:43,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-17 15:28:43,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:43,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066992631] [2025-03-17 15:28:43,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:43,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:43,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:43,231 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:43,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-17 15:28:43,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-17 15:28:43,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-17 15:28:43,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:43,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:43,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:28:43,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2025-03-17 15:28:43,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:28:43,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:43,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214746136] [2025-03-17 15:28:43,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:43,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066992631] [2025-03-17 15:28:43,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066992631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:28:43,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:28:43,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:28:43,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140328665] [2025-03-17 15:28:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:28:43,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:28:43,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:43,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:28:43,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:28:43,413 INFO L87 Difference]: Start difference. First operand 2571 states and 3278 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 15:28:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:43,583 INFO L93 Difference]: Finished difference Result 2578 states and 3284 transitions. [2025-03-17 15:28:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:28:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 146 [2025-03-17 15:28:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:43,588 INFO L225 Difference]: With dead ends: 2578 [2025-03-17 15:28:43,588 INFO L226 Difference]: Without dead ends: 2576 [2025-03-17 15:28:43,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 143 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 15:28:43,589 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 47 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:43,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:28:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2025-03-17 15:28:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2021. [2025-03-17 15:28:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 1790 states have (on average 1.1810055865921787) internal successors, (2114), 1800 states have internal predecessors, (2114), 195 states have call successors, (195), 25 states have call predecessors, (195), 25 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2025-03-17 15:28:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2504 transitions. [2025-03-17 15:28:43,707 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2504 transitions. Word has length 146 [2025-03-17 15:28:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:43,707 INFO L471 AbstractCegarLoop]: Abstraction has 2021 states and 2504 transitions. [2025-03-17 15:28:43,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 15:28:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2504 transitions. [2025-03-17 15:28:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 15:28:43,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:43,720 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:43,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:43,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:43,920 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:43,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash -384081361, now seen corresponding path program 1 times [2025-03-17 15:28:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:43,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743130170] [2025-03-17 15:28:43,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:43,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:43,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 15:28:43,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:28:43,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:43,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:43,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178280542] [2025-03-17 15:28:43,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:43,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:43,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:43,938 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:43,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-17 15:28:43,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 15:28:43,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 15:28:43,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:43,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:43,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 15:28:43,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:44,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:44,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:44,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743130170] [2025-03-17 15:28:44,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:44,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178280542] [2025-03-17 15:28:44,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178280542] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:44,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:28:44,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166461351] [2025-03-17 15:28:44,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:44,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:28:44,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:44,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:28:44,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:28:44,713 INFO L87 Difference]: Start difference. First operand 2021 states and 2504 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:28:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:45,162 INFO L93 Difference]: Finished difference Result 2023 states and 2505 transitions. [2025-03-17 15:28:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:28:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 153 [2025-03-17 15:28:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:45,167 INFO L225 Difference]: With dead ends: 2023 [2025-03-17 15:28:45,167 INFO L226 Difference]: Without dead ends: 2021 [2025-03-17 15:28:45,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:28:45,168 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 8 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:45,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 490 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2025-03-17 15:28:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 2021. [2025-03-17 15:28:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 1790 states have (on average 1.1804469273743017) internal successors, (2113), 1800 states have internal predecessors, (2113), 195 states have call successors, (195), 25 states have call predecessors, (195), 25 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2025-03-17 15:28:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2503 transitions. [2025-03-17 15:28:45,319 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2503 transitions. Word has length 153 [2025-03-17 15:28:45,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:45,320 INFO L471 AbstractCegarLoop]: Abstraction has 2021 states and 2503 transitions. [2025-03-17 15:28:45,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-17 15:28:45,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2503 transitions. [2025-03-17 15:28:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-17 15:28:45,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:45,322 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:28:45,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-03-17 15:28:45,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-03-17 15:28:45,526 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:45,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1221274282, now seen corresponding path program 3 times [2025-03-17 15:28:45,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:45,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699178231] [2025-03-17 15:28:45,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:28:45,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:45,531 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 9 equivalence classes. [2025-03-17 15:28:45,552 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 157 of 157 statements. [2025-03-17 15:28:45,552 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-17 15:28:45,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:45,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429806758] [2025-03-17 15:28:45,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:28:45,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:45,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:45,556 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:45,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-17 15:28:45,579 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 9 equivalence classes. [2025-03-17 15:28:45,597 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 77 of 157 statements. [2025-03-17 15:28:45,597 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 15:28:45,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:45,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-17 15:28:45,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 120 proven. 50 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2025-03-17 15:28:46,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:46,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:46,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699178231] [2025-03-17 15:28:46,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:46,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429806758] [2025-03-17 15:28:46,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429806758] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:46,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:46,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:28:46,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832582508] [2025-03-17 15:28:46,150 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:46,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:28:46,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:46,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:28:46,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:28:46,151 INFO L87 Difference]: Start difference. First operand 2021 states and 2503 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-17 15:28:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:46,813 INFO L93 Difference]: Finished difference Result 2085 states and 2571 transitions. [2025-03-17 15:28:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 15:28:46,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 157 [2025-03-17 15:28:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:46,817 INFO L225 Difference]: With dead ends: 2085 [2025-03-17 15:28:46,817 INFO L226 Difference]: Without dead ends: 2083 [2025-03-17 15:28:46,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2025-03-17 15:28:46,818 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 204 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:46,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 381 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:28:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2025-03-17 15:28:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2021. [2025-03-17 15:28:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 1790 states have (on average 1.1798882681564247) internal successors, (2112), 1800 states have internal predecessors, (2112), 195 states have call successors, (195), 25 states have call predecessors, (195), 25 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2025-03-17 15:28:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2502 transitions. [2025-03-17 15:28:46,930 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2502 transitions. Word has length 157 [2025-03-17 15:28:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:46,930 INFO L471 AbstractCegarLoop]: Abstraction has 2021 states and 2502 transitions. [2025-03-17 15:28:46,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-17 15:28:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2502 transitions. [2025-03-17 15:28:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 15:28:46,931 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:46,931 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:28:46,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:47,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:47,135 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:47,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1112094901, now seen corresponding path program 1 times [2025-03-17 15:28:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230886740] [2025-03-17 15:28:47,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:47,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 15:28:47,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 15:28:47,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:47,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:47,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230886740] [2025-03-17 15:28:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230886740] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469429078] [2025-03-17 15:28:47,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:47,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:47,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:47,539 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:47,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-17 15:28:47,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 15:28:47,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 15:28:47,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:47,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:47,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 15:28:47,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:48,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:50,933 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:50,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469429078] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:50,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:50,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 8] total 31 [2025-03-17 15:28:50,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069887307] [2025-03-17 15:28:50,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:50,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-17 15:28:50,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:50,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-17 15:28:50,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2025-03-17 15:28:50,935 INFO L87 Difference]: Start difference. First operand 2021 states and 2502 transitions. Second operand has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 32 states have internal predecessors, (267), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2025-03-17 15:28:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:52,651 INFO L93 Difference]: Finished difference Result 2304 states and 2866 transitions. [2025-03-17 15:28:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-03-17 15:28:52,651 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 32 states have internal predecessors, (267), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) Word has length 163 [2025-03-17 15:28:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:52,656 INFO L225 Difference]: With dead ends: 2304 [2025-03-17 15:28:52,656 INFO L226 Difference]: Without dead ends: 2302 [2025-03-17 15:28:52,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 15:28:52,657 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 1071 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:52,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1003 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 15:28:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2025-03-17 15:28:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2036. [2025-03-17 15:28:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 1818 states have (on average 1.1474147414741473) internal successors, (2086), 1827 states have internal predecessors, (2086), 183 states have call successors, (183), 25 states have call predecessors, (183), 25 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2025-03-17 15:28:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2452 transitions. [2025-03-17 15:28:52,809 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2452 transitions. Word has length 163 [2025-03-17 15:28:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:52,810 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 2452 transitions. [2025-03-17 15:28:52,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 32 states have internal predecessors, (267), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2025-03-17 15:28:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2452 transitions. [2025-03-17 15:28:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-17 15:28:52,811 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:52,811 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:28:52,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:53,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-03-17 15:28:53,013 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:53,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash -968533333, now seen corresponding path program 5 times [2025-03-17 15:28:53,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:53,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840653855] [2025-03-17 15:28:53,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:28:53,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:53,019 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 169 statements into 7 equivalence classes. [2025-03-17 15:28:53,036 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 169 of 169 statements. [2025-03-17 15:28:53,038 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-03-17 15:28:53,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:28:53,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763017279] [2025-03-17 15:28:53,039 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:28:53,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:53,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:53,040 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:53,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-17 15:28:53,067 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 169 statements into 7 equivalence classes. [2025-03-17 15:28:53,102 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 169 of 169 statements. [2025-03-17 15:28:53,102 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-03-17 15:28:53,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:53,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-17 15:28:53,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 42 proven. 113 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2025-03-17 15:28:53,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:54,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840653855] [2025-03-17 15:28:54,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:28:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763017279] [2025-03-17 15:28:54,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763017279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:54,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:28:54,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2025-03-17 15:28:54,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678404004] [2025-03-17 15:28:54,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:54,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 15:28:54,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:54,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 15:28:54,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:28:54,469 INFO L87 Difference]: Start difference. First operand 2036 states and 2452 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2025-03-17 15:28:55,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:55,501 INFO L93 Difference]: Finished difference Result 2370 states and 2848 transitions. [2025-03-17 15:28:55,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 15:28:55,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 169 [2025-03-17 15:28:55,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:55,506 INFO L225 Difference]: With dead ends: 2370 [2025-03-17 15:28:55,506 INFO L226 Difference]: Without dead ends: 2062 [2025-03-17 15:28:55,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:28:55,506 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 55 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:55,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1103 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 15:28:55,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2025-03-17 15:28:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1972. [2025-03-17 15:28:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1758 states have (on average 1.1496018202502845) internal successors, (2021), 1767 states have internal predecessors, (2021), 179 states have call successors, (179), 25 states have call predecessors, (179), 25 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2025-03-17 15:28:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2379 transitions. [2025-03-17 15:28:55,651 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2379 transitions. Word has length 169 [2025-03-17 15:28:55,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:55,652 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 2379 transitions. [2025-03-17 15:28:55,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2025-03-17 15:28:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2379 transitions. [2025-03-17 15:28:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-17 15:28:55,653 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:55,653 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:28:55,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-17 15:28:55,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:55,854 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:55,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash -980528560, now seen corresponding path program 1 times [2025-03-17 15:28:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:55,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926310252] [2025-03-17 15:28:55,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:55,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:55,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-17 15:28:55,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-17 15:28:55,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:55,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 6 proven. 110 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926310252] [2025-03-17 15:28:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926310252] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842094390] [2025-03-17 15:28:56,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:56,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:56,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:56,106 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:56,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-17 15:28:56,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-17 15:28:56,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-17 15:28:56,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:56,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:56,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-17 15:28:56,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 18 proven. 98 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-17 15:28:56,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:57,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842094390] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:57,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:28:57,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2025-03-17 15:28:57,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393079830] [2025-03-17 15:28:57,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:57,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 15:28:57,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:57,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 15:28:57,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-03-17 15:28:57,155 INFO L87 Difference]: Start difference. First operand 1972 states and 2379 transitions. Second operand has 25 states, 24 states have (on average 7.958333333333333) internal successors, (191), 25 states have internal predecessors, (191), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-03-17 15:28:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:58,632 INFO L93 Difference]: Finished difference Result 2581 states and 3161 transitions. [2025-03-17 15:28:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 15:28:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 7.958333333333333) internal successors, (191), 25 states have internal predecessors, (191), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 169 [2025-03-17 15:28:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:58,637 INFO L225 Difference]: With dead ends: 2581 [2025-03-17 15:28:58,637 INFO L226 Difference]: Without dead ends: 2580 [2025-03-17 15:28:58,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2025-03-17 15:28:58,638 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 655 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:58,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 916 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:28:58,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2025-03-17 15:28:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2077. [2025-03-17 15:28:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1853 states have (on average 1.1462493254182406) internal successors, (2124), 1862 states have internal predecessors, (2124), 189 states have call successors, (189), 25 states have call predecessors, (189), 25 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 15:28:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2502 transitions. [2025-03-17 15:28:58,800 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2502 transitions. Word has length 169 [2025-03-17 15:28:58,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:58,800 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2502 transitions. [2025-03-17 15:28:58,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 7.958333333333333) internal successors, (191), 25 states have internal predecessors, (191), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-03-17 15:28:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2502 transitions. [2025-03-17 15:28:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-17 15:28:58,801 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:58,801 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:58,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2025-03-17 15:28:59,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2025-03-17 15:28:59,002 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:28:59,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:28:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -368281457, now seen corresponding path program 1 times [2025-03-17 15:28:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:28:59,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178075453] [2025-03-17 15:28:59,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:59,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:28:59,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-17 15:28:59,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-17 15:28:59,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:59,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:28:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:28:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178075453] [2025-03-17 15:28:59,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178075453] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:28:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921015706] [2025-03-17 15:28:59,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:28:59,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:28:59,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:28:59,140 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:28:59,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-17 15:28:59,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-17 15:28:59,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-17 15:28:59,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:28:59,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:28:59,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:28:59,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:28:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:28:59,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:28:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:28:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921015706] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:28:59,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:28:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2025-03-17 15:28:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089471852] [2025-03-17 15:28:59,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:28:59,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:28:59,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:28:59,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:28:59,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:28:59,571 INFO L87 Difference]: Start difference. First operand 2077 states and 2502 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:28:59,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:28:59,822 INFO L93 Difference]: Finished difference Result 2105 states and 2523 transitions. [2025-03-17 15:28:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:28:59,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 180 [2025-03-17 15:28:59,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:28:59,826 INFO L225 Difference]: With dead ends: 2105 [2025-03-17 15:28:59,826 INFO L226 Difference]: Without dead ends: 2099 [2025-03-17 15:28:59,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 356 SyntacticMatches, 8 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:28:59,827 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 81 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:28:59,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 258 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:28:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2025-03-17 15:28:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2077. [2025-03-17 15:28:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1853 states have (on average 1.1430113329735565) internal successors, (2118), 1862 states have internal predecessors, (2118), 189 states have call successors, (189), 25 states have call predecessors, (189), 25 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 15:28:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2496 transitions. [2025-03-17 15:28:59,979 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2496 transitions. Word has length 180 [2025-03-17 15:28:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:28:59,979 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2496 transitions. [2025-03-17 15:28:59,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2025-03-17 15:28:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2496 transitions. [2025-03-17 15:28:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-17 15:28:59,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:28:59,981 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:28:59,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2025-03-17 15:29:00,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-03-17 15:29:00,182 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:00,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1775417290, now seen corresponding path program 2 times [2025-03-17 15:29:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969663645] [2025-03-17 15:29:00,182 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:00,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 180 statements into 2 equivalence classes. [2025-03-17 15:29:00,191 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 180 of 180 statements. [2025-03-17 15:29:00,192 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:00,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 49 proven. 78 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:29:00,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:00,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969663645] [2025-03-17 15:29:00,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969663645] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:00,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025735301] [2025-03-17 15:29:00,375 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:00,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:00,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:00,377 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:00,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-17 15:29:00,401 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 180 statements into 2 equivalence classes. [2025-03-17 15:29:00,426 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 180 of 180 statements. [2025-03-17 15:29:00,426 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:00,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:00,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-17 15:29:00,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:29:00,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:29:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 93 proven. 34 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 15:29:00,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025735301] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:29:00,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:29:00,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 6] total 14 [2025-03-17 15:29:00,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836770957] [2025-03-17 15:29:00,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:29:00,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:29:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:00,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:29:00,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:29:00,810 INFO L87 Difference]: Start difference. First operand 2077 states and 2496 transitions. Second operand has 14 states, 14 states have (on average 15.785714285714286) internal successors, (221), 14 states have internal predecessors, (221), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) [2025-03-17 15:29:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:01,136 INFO L93 Difference]: Finished difference Result 2108 states and 2518 transitions. [2025-03-17 15:29:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:29:01,136 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 15.785714285714286) internal successors, (221), 14 states have internal predecessors, (221), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) Word has length 180 [2025-03-17 15:29:01,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:01,139 INFO L225 Difference]: With dead ends: 2108 [2025-03-17 15:29:01,139 INFO L226 Difference]: Without dead ends: 1172 [2025-03-17 15:29:01,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 353 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:29:01,140 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 13 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:01,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 691 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:29:01,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2025-03-17 15:29:01,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2025-03-17 15:29:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1028 states have (on average 1.127431906614786) internal successors, (1159), 1037 states have internal predecessors, (1159), 113 states have call successors, (113), 21 states have call predecessors, (113), 21 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2025-03-17 15:29:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1385 transitions. [2025-03-17 15:29:01,230 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1385 transitions. Word has length 180 [2025-03-17 15:29:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:01,230 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1385 transitions. [2025-03-17 15:29:01,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.785714285714286) internal successors, (221), 14 states have internal predecessors, (221), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) [2025-03-17 15:29:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1385 transitions. [2025-03-17 15:29:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-17 15:29:01,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:01,231 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:29:01,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2025-03-17 15:29:01,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-17 15:29:01,432 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:01,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:01,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2129032646, now seen corresponding path program 1 times [2025-03-17 15:29:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:01,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106748536] [2025-03-17 15:29:01,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:01,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:01,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-17 15:29:01,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-17 15:29:01,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:01,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 38 proven. 84 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:01,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:01,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106748536] [2025-03-17 15:29:01,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106748536] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:01,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190165836] [2025-03-17 15:29:01,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:01,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:01,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:01,607 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:01,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-17 15:29:01,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-17 15:29:01,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-17 15:29:01,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:01,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:01,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:29:01,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2025-03-17 15:29:01,735 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:29:01,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190165836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:29:01,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:29:01,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-17 15:29:01,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449463346] [2025-03-17 15:29:01,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:29:01,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:29:01,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:01,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:29:01,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:29:01,736 INFO L87 Difference]: Start difference. First operand 1172 states and 1385 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 15:29:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:01,881 INFO L93 Difference]: Finished difference Result 1172 states and 1385 transitions. [2025-03-17 15:29:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:29:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 183 [2025-03-17 15:29:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:01,884 INFO L225 Difference]: With dead ends: 1172 [2025-03-17 15:29:01,884 INFO L226 Difference]: Without dead ends: 1171 [2025-03-17 15:29:01,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:29:01,885 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 59 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:01,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:29:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2025-03-17 15:29:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1035. [2025-03-17 15:29:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 910 states have (on average 1.1164835164835165) internal successors, (1016), 918 states have internal predecessors, (1016), 95 states have call successors, (95), 21 states have call predecessors, (95), 21 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-03-17 15:29:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1206 transitions. [2025-03-17 15:29:01,974 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1206 transitions. Word has length 183 [2025-03-17 15:29:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:01,975 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1206 transitions. [2025-03-17 15:29:01,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 15:29:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1206 transitions. [2025-03-17 15:29:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-03-17 15:29:01,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:01,976 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 15:29:01,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2025-03-17 15:29:02,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2025-03-17 15:29:02,176 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:02,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1326801597, now seen corresponding path program 1 times [2025-03-17 15:29:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:02,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193626259] [2025-03-17 15:29:02,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:02,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-17 15:29:02,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-17 15:29:02,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:02,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:02,429 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:02,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:02,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193626259] [2025-03-17 15:29:02,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193626259] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:02,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304681321] [2025-03-17 15:29:02,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:02,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:02,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:02,431 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:02,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-03-17 15:29:02,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-17 15:29:02,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-17 15:29:02,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:02,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:02,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-17 15:29:02,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:02,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:29:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:06,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304681321] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:29:06,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:29:06,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2025-03-17 15:29:06,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971364348] [2025-03-17 15:29:06,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:29:06,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-17 15:29:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:06,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-17 15:29:06,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2025-03-17 15:29:06,976 INFO L87 Difference]: Start difference. First operand 1035 states and 1206 transitions. Second operand has 30 states, 29 states have (on average 10.137931034482758) internal successors, (294), 30 states have internal predecessors, (294), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-17 15:29:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:10,284 INFO L93 Difference]: Finished difference Result 2059 states and 2468 transitions. [2025-03-17 15:29:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-17 15:29:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 10.137931034482758) internal successors, (294), 30 states have internal predecessors, (294), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 187 [2025-03-17 15:29:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:10,287 INFO L225 Difference]: With dead ends: 2059 [2025-03-17 15:29:10,287 INFO L226 Difference]: Without dead ends: 2058 [2025-03-17 15:29:10,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1113, Invalid=1967, Unknown=0, NotChecked=0, Total=3080 [2025-03-17 15:29:10,288 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 1022 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:10,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1122 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-17 15:29:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2025-03-17 15:29:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1649. [2025-03-17 15:29:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1466 states have (on average 1.1330150068212823) internal successors, (1661), 1474 states have internal predecessors, (1661), 153 states have call successors, (153), 21 states have call predecessors, (153), 21 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:29:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 1967 transitions. [2025-03-17 15:29:10,484 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 1967 transitions. Word has length 187 [2025-03-17 15:29:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:10,484 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 1967 transitions. [2025-03-17 15:29:10,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 10.137931034482758) internal successors, (294), 30 states have internal predecessors, (294), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-17 15:29:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 1967 transitions. [2025-03-17 15:29:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-03-17 15:29:10,485 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:10,485 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:29:10,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2025-03-17 15:29:10,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:10,689 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:10,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2114493718, now seen corresponding path program 6 times [2025-03-17 15:29:10,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:10,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834668095] [2025-03-17 15:29:10,690 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:29:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:10,695 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 195 statements into 7 equivalence classes. [2025-03-17 15:29:10,722 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 195 of 195 statements. [2025-03-17 15:29:10,722 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-03-17 15:29:10,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:29:10,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299884329] [2025-03-17 15:29:10,723 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:29:10,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:10,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:10,725 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:10,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-03-17 15:29:10,750 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 195 statements into 7 equivalence classes. [2025-03-17 15:29:10,787 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 131 of 195 statements. [2025-03-17 15:29:10,787 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-17 15:29:10,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:10,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:29:10,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 106 proven. 38 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2025-03-17 15:29:11,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:29:12,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:12,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834668095] [2025-03-17 15:29:12,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:29:12,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299884329] [2025-03-17 15:29:12,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299884329] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:12,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:29:12,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 15:29:12,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967193996] [2025-03-17 15:29:12,861 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:29:12,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 15:29:12,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:12,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 15:29:12,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:29:12,863 INFO L87 Difference]: Start difference. First operand 1649 states and 1967 transitions. Second operand has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:29:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:14,031 INFO L93 Difference]: Finished difference Result 2304 states and 2773 transitions. [2025-03-17 15:29:14,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:29:14,031 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 195 [2025-03-17 15:29:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:14,034 INFO L225 Difference]: With dead ends: 2304 [2025-03-17 15:29:14,034 INFO L226 Difference]: Without dead ends: 1587 [2025-03-17 15:29:14,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2025-03-17 15:29:14,036 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 94 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:14,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 621 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 15:29:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2025-03-17 15:29:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1372. [2025-03-17 15:29:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1213 states have (on average 1.136850783182193) internal successors, (1379), 1221 states have internal predecessors, (1379), 129 states have call successors, (129), 21 states have call predecessors, (129), 21 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2025-03-17 15:29:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1637 transitions. [2025-03-17 15:29:14,219 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1637 transitions. Word has length 195 [2025-03-17 15:29:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:14,219 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1637 transitions. [2025-03-17 15:29:14,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 15:29:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1637 transitions. [2025-03-17 15:29:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-03-17 15:29:14,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:14,220 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:29:14,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2025-03-17 15:29:14,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:14,424 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:14,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2102498491, now seen corresponding path program 2 times [2025-03-17 15:29:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:14,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684588077] [2025-03-17 15:29:14,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:14,429 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 195 statements into 2 equivalence classes. [2025-03-17 15:29:14,435 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 195 of 195 statements. [2025-03-17 15:29:14,435 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:14,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 6 proven. 148 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684588077] [2025-03-17 15:29:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684588077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493819118] [2025-03-17 15:29:14,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:14,705 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:14,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-03-17 15:29:14,729 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 195 statements into 2 equivalence classes. [2025-03-17 15:29:14,759 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 195 of 195 statements. [2025-03-17 15:29:14,760 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:14,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:14,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:29:14,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 15:29:15,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:29:15,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493819118] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:15,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:29:15,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2025-03-17 15:29:15,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783509373] [2025-03-17 15:29:15,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:29:15,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-17 15:29:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:15,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-17 15:29:15,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2025-03-17 15:29:15,686 INFO L87 Difference]: Start difference. First operand 1372 states and 1637 transitions. Second operand has 28 states, 27 states have (on average 7.888888888888889) internal successors, (213), 28 states have internal predecessors, (213), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-03-17 15:29:17,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:17,191 INFO L93 Difference]: Finished difference Result 1711 states and 2061 transitions. [2025-03-17 15:29:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-17 15:29:17,191 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.888888888888889) internal successors, (213), 28 states have internal predecessors, (213), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 195 [2025-03-17 15:29:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:17,193 INFO L225 Difference]: With dead ends: 1711 [2025-03-17 15:29:17,193 INFO L226 Difference]: Without dead ends: 1700 [2025-03-17 15:29:17,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2025-03-17 15:29:17,194 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 954 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:17,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1019 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:29:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2025-03-17 15:29:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1460. [2025-03-17 15:29:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1295 states have (on average 1.1328185328185327) internal successors, (1467), 1303 states have internal predecessors, (1467), 135 states have call successors, (135), 21 states have call predecessors, (135), 21 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-17 15:29:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1737 transitions. [2025-03-17 15:29:17,376 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1737 transitions. Word has length 195 [2025-03-17 15:29:17,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:17,376 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1737 transitions. [2025-03-17 15:29:17,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 7.888888888888889) internal successors, (213), 28 states have internal predecessors, (213), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-03-17 15:29:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1737 transitions. [2025-03-17 15:29:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-03-17 15:29:17,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:17,377 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:29:17,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2025-03-17 15:29:17,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2025-03-17 15:29:17,578 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:17,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash -75568384, now seen corresponding path program 1 times [2025-03-17 15:29:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679870382] [2025-03-17 15:29:17,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:17,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-03-17 15:29:17,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-03-17 15:29:17,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:17,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-17 15:29:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679870382] [2025-03-17 15:29:17,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679870382] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691948870] [2025-03-17 15:29:17,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:29:17,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:17,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:17,843 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:17,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-03-17 15:29:17,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-03-17 15:29:17,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-03-17 15:29:17,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:29:17,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:17,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 15:29:17,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-17 15:29:18,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:29:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-17 15:29:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691948870] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:29:18,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:29:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 23 [2025-03-17 15:29:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680581510] [2025-03-17 15:29:18,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:29:18,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 15:29:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:29:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 15:29:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:29:18,411 INFO L87 Difference]: Start difference. First operand 1460 states and 1737 transitions. Second operand has 23 states, 23 states have (on average 7.260869565217392) internal successors, (167), 23 states have internal predecessors, (167), 9 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (49), 9 states have call predecessors, (49), 9 states have call successors, (49) [2025-03-17 15:29:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:29:19,041 INFO L93 Difference]: Finished difference Result 1592 states and 1880 transitions. [2025-03-17 15:29:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-17 15:29:19,042 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.260869565217392) internal successors, (167), 23 states have internal predecessors, (167), 9 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (49), 9 states have call predecessors, (49), 9 states have call successors, (49) Word has length 214 [2025-03-17 15:29:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:29:19,045 INFO L225 Difference]: With dead ends: 1592 [2025-03-17 15:29:19,045 INFO L226 Difference]: Without dead ends: 1585 [2025-03-17 15:29:19,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 410 SyntacticMatches, 15 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=489, Invalid=1581, Unknown=0, NotChecked=0, Total=2070 [2025-03-17 15:29:19,046 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:29:19,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 583 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:29:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2025-03-17 15:29:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1524. [2025-03-17 15:29:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1352 states have (on average 1.128698224852071) internal successors, (1526), 1360 states have internal predecessors, (1526), 139 states have call successors, (139), 24 states have call predecessors, (139), 24 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2025-03-17 15:29:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1804 transitions. [2025-03-17 15:29:19,248 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1804 transitions. Word has length 214 [2025-03-17 15:29:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:29:19,248 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 1804 transitions. [2025-03-17 15:29:19,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.260869565217392) internal successors, (167), 23 states have internal predecessors, (167), 9 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (49), 9 states have call predecessors, (49), 9 states have call successors, (49) [2025-03-17 15:29:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1804 transitions. [2025-03-17 15:29:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-03-17 15:29:19,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:29:19,249 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:29:19,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2025-03-17 15:29:19,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:19,450 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:29:19,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:29:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1976572106, now seen corresponding path program 2 times [2025-03-17 15:29:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:29:19,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176879005] [2025-03-17 15:29:19,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:19,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:29:19,455 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 214 statements into 2 equivalence classes. [2025-03-17 15:29:19,462 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 214 of 214 statements. [2025-03-17 15:29:19,462 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:19,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:29:19,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:29:19,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176879005] [2025-03-17 15:29:19,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176879005] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:29:19,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664107965] [2025-03-17 15:29:19,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:29:19,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:29:19,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:29:19,891 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:29:19,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-03-17 15:29:19,917 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 214 statements into 2 equivalence classes. [2025-03-17 15:29:19,953 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 214 of 214 statements. [2025-03-17 15:29:19,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:29:19,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:29:19,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 15:29:19,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:29:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 892 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 15:29:20,206 INFO L312 TraceCheckSpWp]: Computing backward predicates...