./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/geo2-ll2_valuebound50.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 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:21:10,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:21:10,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:21:10,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:21:10,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:21:10,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:21:10,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:21:10,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:21:10,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:21:10,754 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:21:10,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:21:10,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:21:10,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:21:10,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:21:10,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:21:10,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:21:10,757 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:21:10,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:21:10,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:21:10,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:21:10,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:21:10,759 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 -> 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 [2025-03-09 02:21:10,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:21:10,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:21:10,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:21:10,987 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:21:10,988 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:21:10,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2025-03-09 02:21:12,117 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb7648de/32e6ef897ecd4c729e9d977ebf33d189/FLAG46a366574 [2025-03-09 02:21:12,430 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:21:12,431 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2025-03-09 02:21:12,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb7648de/32e6ef897ecd4c729e9d977ebf33d189/FLAG46a366574 [2025-03-09 02:21:12,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb7648de/32e6ef897ecd4c729e9d977ebf33d189 [2025-03-09 02:21:12,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:21:12,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:21:12,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:21:12,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:21:12,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:21:12,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb92a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12, skipping insertion in model container [2025-03-09 02:21:12,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:21:12,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:21:12,839 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:21:12,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:21:12,863 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:21:12,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12 WrapperNode [2025-03-09 02:21:12,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:21:12,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:21:12,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:21:12,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:21:12,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,888 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2025-03-09 02:21:12,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:21:12,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:21:12,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:21:12,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:21:12,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,912 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 02:21:12,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,915 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:21:12,922 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:21:12,922 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:21:12,922 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:21:12,926 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (1/1) ... [2025-03-09 02:21:12,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:21:12,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:12,954 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) [2025-03-09 02:21:12,959 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 [2025-03-09 02:21:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:21:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:21:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:21:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:21:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:21:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:21:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:21:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:21:13,010 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:21:13,011 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:21:13,254 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2025-03-09 02:21:13,254 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:21:13,261 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:21:13,261 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:21:13,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:21:13 BoogieIcfgContainer [2025-03-09 02:21:13,262 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:21:13,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:21:13,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:21:13,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:21:13,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:21:12" (1/3) ... [2025-03-09 02:21:13,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707fb2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:21:13, skipping insertion in model container [2025-03-09 02:21:13,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:21:12" (2/3) ... [2025-03-09 02:21:13,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707fb2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:21:13, skipping insertion in model container [2025-03-09 02:21:13,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:21:13" (3/3) ... [2025-03-09 02:21:13,273 INFO L128 eAbstractionObserver]: Analyzing ICFG geo2-ll2_valuebound50.c [2025-03-09 02:21:13,284 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:21:13,286 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo2-ll2_valuebound50.c that has 3 procedures, 79 locations, 1 initial locations, 1 loop locations, and 28 error locations. [2025-03-09 02:21:13,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:21:13,348 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;@5e5def2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:21:13,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-09 02:21:13,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 02:21:13,359 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:13,360 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:13,360 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)] === [2025-03-09 02:21:13,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:13,366 INFO L85 PathProgramCache]: Analyzing trace with hash 303649502, now seen corresponding path program 1 times [2025-03-09 02:21:13,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722080642] [2025-03-09 02:21:13,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:13,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:21:13,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:21:13,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:13,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 02:21:13,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:13,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722080642] [2025-03-09 02:21:13,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722080642] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:13,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891562881] [2025-03-09 02:21:13,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:13,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:13,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:13,485 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) [2025-03-09 02:21:13,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:21:13,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:21:13,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:21:13,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:13,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:13,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 02:21:13,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 02:21:13,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891562881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 02:21:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472103182] [2025-03-09 02:21:13,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:13,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:21:13,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:13,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:21:13,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:21:13,565 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:21:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:13,581 INFO L93 Difference]: Finished difference Result 154 states and 167 transitions. [2025-03-09 02:21:13,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:21:13,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2025-03-09 02:21:13,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:13,586 INFO L225 Difference]: With dead ends: 154 [2025-03-09 02:21:13,586 INFO L226 Difference]: Without dead ends: 72 [2025-03-09 02:21:13,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:21:13,590 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:13,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:21:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-03-09 02:21:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-03-09 02:21:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 66 states have internal predecessors, (67), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2025-03-09 02:21:13,620 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 15 [2025-03-09 02:21:13,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:13,621 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2025-03-09 02:21:13,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:21:13,621 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2025-03-09 02:21:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 02:21:13,622 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:13,622 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:13,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:21:13,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-09 02:21:13,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:13,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1492378336, now seen corresponding path program 1 times [2025-03-09 02:21:13,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:13,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868510243] [2025-03-09 02:21:13,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:13,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:13,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:21:13,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:21:13,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:13,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:13,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156475543] [2025-03-09 02:21:13,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:13,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:13,847 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) [2025-03-09 02:21:13,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:21:13,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:21:13,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:21:13,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:13,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:13,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:21:13,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:13,962 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:13,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:13,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868510243] [2025-03-09 02:21:13,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:13,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156475543] [2025-03-09 02:21:13,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156475543] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:13,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:13,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:21:13,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761050249] [2025-03-09 02:21:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:13,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:21:13,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:13,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:21:13,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:13,965 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-09 02:21:14,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:14,157 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2025-03-09 02:21:14,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:21:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15 [2025-03-09 02:21:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:14,158 INFO L225 Difference]: With dead ends: 110 [2025-03-09 02:21:14,158 INFO L226 Difference]: Without dead ends: 102 [2025-03-09 02:21:14,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:14,159 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 60 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:14,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 49 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-09 02:21:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2025-03-09 02:21:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 87 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2025-03-09 02:21:14,168 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 15 [2025-03-09 02:21:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:14,169 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2025-03-09 02:21:14,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-09 02:21:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2025-03-09 02:21:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-09 02:21:14,170 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:14,170 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:14,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:21:14,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-09 02:21:14,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:14,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash 980911869, now seen corresponding path program 1 times [2025-03-09 02:21:14,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:14,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424736885] [2025-03-09 02:21:14,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:14,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 02:21:14,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 02:21:14,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:14,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:14,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174885669] [2025-03-09 02:21:14,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:14,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:14,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:14,387 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) [2025-03-09 02:21:14,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:21:14,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 02:21:14,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 02:21:14,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:14,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:14,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:21:14,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:14,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:14,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424736885] [2025-03-09 02:21:14,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174885669] [2025-03-09 02:21:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174885669] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:14,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:21:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193747357] [2025-03-09 02:21:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:14,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:21:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:14,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:21:14,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:14,458 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-09 02:21:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:14,597 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2025-03-09 02:21:14,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:21:14,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2025-03-09 02:21:14,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:14,598 INFO L225 Difference]: With dead ends: 110 [2025-03-09 02:21:14,599 INFO L226 Difference]: Without dead ends: 102 [2025-03-09 02:21:14,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:14,600 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 86 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:14,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 39 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:14,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-09 02:21:14,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2025-03-09 02:21:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.564516129032258) internal successors, (97), 89 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2025-03-09 02:21:14,612 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 16 [2025-03-09 02:21:14,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:14,612 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2025-03-09 02:21:14,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-09 02:21:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2025-03-09 02:21:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:21:14,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:14,613 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:14,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 02:21:14,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:14,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:14,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 311328762, now seen corresponding path program 1 times [2025-03-09 02:21:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63382561] [2025-03-09 02:21:14,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:14,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:21:14,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:21:14,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:14,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:14,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796325861] [2025-03-09 02:21:14,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:14,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:14,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:14,835 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) [2025-03-09 02:21:14,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:21:14,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:21:14,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:21:14,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:14,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:14,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:21:14,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:14,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:14,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:14,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63382561] [2025-03-09 02:21:14,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:14,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796325861] [2025-03-09 02:21:14,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796325861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:14,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:14,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:21:14,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474181494] [2025-03-09 02:21:14,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:14,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:21:14,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:14,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:21:14,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:14,935 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:21:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:15,075 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2025-03-09 02:21:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:21:15,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2025-03-09 02:21:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:15,077 INFO L225 Difference]: With dead ends: 107 [2025-03-09 02:21:15,077 INFO L226 Difference]: Without dead ends: 104 [2025-03-09 02:21:15,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:15,077 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 80 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:15,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 39 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-09 02:21:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2025-03-09 02:21:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.53125) internal successors, (98), 91 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:15,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2025-03-09 02:21:15,087 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 21 [2025-03-09 02:21:15,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:15,087 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2025-03-09 02:21:15,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:21:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2025-03-09 02:21:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 02:21:15,087 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:15,087 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:15,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 02:21:15,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:15,288 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:15,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1061257047, now seen corresponding path program 1 times [2025-03-09 02:21:15,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:15,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884500098] [2025-03-09 02:21:15,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:15,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:15,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:21:15,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:21:15,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:15,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:15,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89660896] [2025-03-09 02:21:15,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:15,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:15,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:15,312 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) [2025-03-09 02:21:15,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:21:15,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:21:15,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:21:15,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:15,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:15,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:21:15,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:15,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884500098] [2025-03-09 02:21:15,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89660896] [2025-03-09 02:21:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89660896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:15,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:15,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:21:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869607431] [2025-03-09 02:21:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:21:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:15,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:21:15,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:15,380 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (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) [2025-03-09 02:21:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:15,484 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2025-03-09 02:21:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:21:15,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (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 22 [2025-03-09 02:21:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:15,485 INFO L225 Difference]: With dead ends: 107 [2025-03-09 02:21:15,485 INFO L226 Difference]: Without dead ends: 104 [2025-03-09 02:21:15,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:21:15,486 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 78 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:15,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 39 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-09 02:21:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2025-03-09 02:21:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 66 states have (on average 1.5) internal successors, (99), 93 states have internal predecessors, (99), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2025-03-09 02:21:15,490 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 22 [2025-03-09 02:21:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:15,491 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2025-03-09 02:21:15,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (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) [2025-03-09 02:21:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2025-03-09 02:21:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:21:15,491 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:15,491 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:15,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 02:21:15,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:15,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:15,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1460769896, now seen corresponding path program 1 times [2025-03-09 02:21:15,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:15,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800747942] [2025-03-09 02:21:15,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:15,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:21:15,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:21:15,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:15,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:15,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908870496] [2025-03-09 02:21:15,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:15,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:15,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:15,718 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) [2025-03-09 02:21:15,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:21:15,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:21:15,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:21:15,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:15,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:15,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:21:15,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:15,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:15,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800747942] [2025-03-09 02:21:15,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908870496] [2025-03-09 02:21:15,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908870496] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:15,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:15,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:21:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367039032] [2025-03-09 02:21:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:15,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:21:15,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:15,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:21:15,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:21:15,793 INFO L87 Difference]: Start difference. First operand 100 states and 107 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, (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) [2025-03-09 02:21:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:15,925 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2025-03-09 02:21:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:21:15,927 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, (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 23 [2025-03-09 02:21:15,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:15,927 INFO L225 Difference]: With dead ends: 108 [2025-03-09 02:21:15,927 INFO L226 Difference]: Without dead ends: 94 [2025-03-09 02:21:15,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:21:15,929 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:15,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 70 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2025-03-09 02:21:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2025-03-09 02:21:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 85 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2025-03-09 02:21:15,936 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 23 [2025-03-09 02:21:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:15,936 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2025-03-09 02:21:15,936 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, (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) [2025-03-09 02:21:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2025-03-09 02:21:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-09 02:21:15,939 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:15,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:15,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 02:21:16,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:16,140 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)] === [2025-03-09 02:21:16,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash 241714336, now seen corresponding path program 1 times [2025-03-09 02:21:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:16,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520861265] [2025-03-09 02:21:16,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:16,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-09 02:21:16,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-09 02:21:16,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:16,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:16,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:16,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520861265] [2025-03-09 02:21:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520861265] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:16,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:21:16,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:21:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067037766] [2025-03-09 02:21:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:16,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:21:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:16,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:21:16,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:21:16,220 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:21:16,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:16,235 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2025-03-09 02:21:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:21:16,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2025-03-09 02:21:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:16,236 INFO L225 Difference]: With dead ends: 94 [2025-03-09 02:21:16,236 INFO L226 Difference]: Without dead ends: 92 [2025-03-09 02:21:16,236 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 [2025-03-09 02:21:16,236 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:16,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 135 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:21:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2025-03-09 02:21:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2025-03-09 02:21:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 85 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2025-03-09 02:21:16,242 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 31 [2025-03-09 02:21:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:16,242 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2025-03-09 02:21:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:21:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2025-03-09 02:21:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:21:16,243 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:16,243 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:16,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 02:21:16,243 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:16,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1156732863, now seen corresponding path program 1 times [2025-03-09 02:21:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:16,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299535519] [2025-03-09 02:21:16,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:16,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:16,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:21:16,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:21:16,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:16,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:16,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592534848] [2025-03-09 02:21:16,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:16,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:16,263 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) [2025-03-09 02:21:16,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:21:16,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:21:16,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:21:16,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:16,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:16,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:21:16,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:16,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299535519] [2025-03-09 02:21:16,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592534848] [2025-03-09 02:21:16,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592534848] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:16,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:16,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:21:16,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216283456] [2025-03-09 02:21:16,657 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:16,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:21:16,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:16,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:21:16,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:21:16,658 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:16,915 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2025-03-09 02:21:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:21:16,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2025-03-09 02:21:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:16,917 INFO L225 Difference]: With dead ends: 92 [2025-03-09 02:21:16,917 INFO L226 Difference]: Without dead ends: 86 [2025-03-09 02:21:16,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:21:16,917 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:16,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 96 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-03-09 02:21:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-03-09 02:21:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 79 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2025-03-09 02:21:16,923 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 39 [2025-03-09 02:21:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:16,923 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2025-03-09 02:21:16,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2025-03-09 02:21:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:21:16,924 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:16,924 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:16,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 02:21:17,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:17,125 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)] === [2025-03-09 02:21:17,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:17,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1498980414, now seen corresponding path program 1 times [2025-03-09 02:21:17,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:17,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016203816] [2025-03-09 02:21:17,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:17,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:21:17,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:21:17,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:17,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:17,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817632517] [2025-03-09 02:21:17,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:17,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:17,147 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) [2025-03-09 02:21:17,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 02:21:17,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:21:17,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:21:17,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:17,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:17,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 02:21:17,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:17,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:17,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016203816] [2025-03-09 02:21:17,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817632517] [2025-03-09 02:21:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817632517] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:17,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:17,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:21:17,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247318228] [2025-03-09 02:21:17,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:17,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:21:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:17,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:21:17,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:21:17,670 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:17,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:17,907 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2025-03-09 02:21:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:21:17,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2025-03-09 02:21:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:17,908 INFO L225 Difference]: With dead ends: 122 [2025-03-09 02:21:17,908 INFO L226 Difference]: Without dead ends: 116 [2025-03-09 02:21:17,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:21:17,909 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 86 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:17,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 95 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:17,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-09 02:21:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2025-03-09 02:21:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 100 states have internal predecessors, (110), 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) [2025-03-09 02:21:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2025-03-09 02:21:17,914 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 40 [2025-03-09 02:21:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:17,914 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2025-03-09 02:21:17,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2025-03-09 02:21:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:21:17,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:17,915 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:17,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:18,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-09 02:21:18,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:18,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1350563707, now seen corresponding path program 1 times [2025-03-09 02:21:18,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:18,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673104766] [2025-03-09 02:21:18,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:18,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:18,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:21:18,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:21:18,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:18,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:18,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889921514] [2025-03-09 02:21:18,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:18,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:18,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:18,136 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) [2025-03-09 02:21:18,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 02:21:18,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:21:18,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:21:18,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:18,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:18,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:21:18,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:18,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:18,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:18,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673104766] [2025-03-09 02:21:18,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889921514] [2025-03-09 02:21:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889921514] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:21:18,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:21:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-09 02:21:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890734024] [2025-03-09 02:21:18,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:18,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:21:18,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:18,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:21:18,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:21:18,497 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-09 02:21:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:19,681 INFO L93 Difference]: Finished difference Result 156 states and 196 transitions. [2025-03-09 02:21:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:21:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2025-03-09 02:21:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:19,682 INFO L225 Difference]: With dead ends: 156 [2025-03-09 02:21:19,682 INFO L226 Difference]: Without dead ends: 154 [2025-03-09 02:21:19,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:21:19,683 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 192 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:19,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 104 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-09 02:21:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2025-03-09 02:21:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2025-03-09 02:21:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 125 states have internal predecessors, (152), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 164 transitions. [2025-03-09 02:21:19,690 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 164 transitions. Word has length 43 [2025-03-09 02:21:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:19,690 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 164 transitions. [2025-03-09 02:21:19,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-09 02:21:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 164 transitions. [2025-03-09 02:21:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:21:19,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:19,694 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:19,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 02:21:19,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-09 02:21:19,894 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:19,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1082198022, now seen corresponding path program 1 times [2025-03-09 02:21:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:19,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212862446] [2025-03-09 02:21:19,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:19,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:21:19,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:21:19,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:19,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936674473] [2025-03-09 02:21:19,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:19,907 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) [2025-03-09 02:21:19,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 02:21:19,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:21:19,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:21:19,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:19,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:19,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:21:19,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:20,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:20,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:20,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212862446] [2025-03-09 02:21:20,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:20,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936674473] [2025-03-09 02:21:20,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936674473] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:20,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:20,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:21:20,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238423541] [2025-03-09 02:21:20,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:20,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:21:20,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:20,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:21:20,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:21:20,376 INFO L87 Difference]: Start difference. First operand 134 states and 164 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:20,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:20,549 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2025-03-09 02:21:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:21:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2025-03-09 02:21:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:20,550 INFO L225 Difference]: With dead ends: 134 [2025-03-09 02:21:20,550 INFO L226 Difference]: Without dead ends: 128 [2025-03-09 02:21:20,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:21:20,551 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 75 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:20,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 86 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2025-03-09 02:21:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2025-03-09 02:21:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 115 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 150 transitions. [2025-03-09 02:21:20,557 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 150 transitions. Word has length 44 [2025-03-09 02:21:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:20,557 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 150 transitions. [2025-03-09 02:21:20,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 150 transitions. [2025-03-09 02:21:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:21:20,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:20,558 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:20,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:20,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-09 02:21:20,761 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:20,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 811599705, now seen corresponding path program 1 times [2025-03-09 02:21:20,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:20,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203482575] [2025-03-09 02:21:20,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:20,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:21:20,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:21:20,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:20,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453992658] [2025-03-09 02:21:20,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:20,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:20,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:20,785 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) [2025-03-09 02:21:20,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 02:21:20,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:21:20,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:21:20,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:20,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:20,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:21:20,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:20,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:21,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:21,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203482575] [2025-03-09 02:21:21,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:21,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453992658] [2025-03-09 02:21:21,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453992658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:21,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:21,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:21:21,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182629877] [2025-03-09 02:21:21,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:21,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:21:21,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:21,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:21:21,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:21:21,105 INFO L87 Difference]: Start difference. First operand 124 states and 150 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:21,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:21,250 INFO L93 Difference]: Finished difference Result 124 states and 150 transitions. [2025-03-09 02:21:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:21:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2025-03-09 02:21:21,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:21,251 INFO L225 Difference]: With dead ends: 124 [2025-03-09 02:21:21,251 INFO L226 Difference]: Without dead ends: 121 [2025-03-09 02:21:21,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:21:21,252 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:21,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 106 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-09 02:21:21,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-03-09 02:21:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.297029702970297) internal successors, (131), 112 states have internal predecessors, (131), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 143 transitions. [2025-03-09 02:21:21,256 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 143 transitions. Word has length 45 [2025-03-09 02:21:21,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:21,257 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 143 transitions. [2025-03-09 02:21:21,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:21:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 143 transitions. [2025-03-09 02:21:21,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:21:21,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:21,257 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:21,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:21,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-09 02:21:21,462 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:21,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:21,462 INFO L85 PathProgramCache]: Analyzing trace with hash -610212904, now seen corresponding path program 1 times [2025-03-09 02:21:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:21,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4296161] [2025-03-09 02:21:21,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:21,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:21,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:21:21,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:21:21,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:21,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:21,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348234806] [2025-03-09 02:21:21,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:21,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:21,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:21,484 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) [2025-03-09 02:21:21,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 02:21:21,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:21:21,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:21:21,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:21,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:21,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-09 02:21:21,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:21,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:21:22,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4296161] [2025-03-09 02:21:22,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348234806] [2025-03-09 02:21:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348234806] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:21:22,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:21:22,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2025-03-09 02:21:22,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84934902] [2025-03-09 02:21:22,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:22,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 02:21:22,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:22,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 02:21:22,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:21:22,083 INFO L87 Difference]: Start difference. First operand 121 states and 143 transitions. Second operand has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:21:22,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:22,681 INFO L93 Difference]: Finished difference Result 151 states and 173 transitions. [2025-03-09 02:21:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:21:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 46 [2025-03-09 02:21:22,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:22,682 INFO L225 Difference]: With dead ends: 151 [2025-03-09 02:21:22,682 INFO L226 Difference]: Without dead ends: 148 [2025-03-09 02:21:22,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:21:22,683 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 181 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:22,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 141 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 02:21:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-09 02:21:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2025-03-09 02:21:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 104 states have (on average 1.2307692307692308) internal successors, (128), 113 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:22,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2025-03-09 02:21:22,688 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 46 [2025-03-09 02:21:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:22,689 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2025-03-09 02:21:22,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:21:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2025-03-09 02:21:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:21:22,689 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:22,689 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:22,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:22,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 02:21:22,891 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:22,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1736730825, now seen corresponding path program 1 times [2025-03-09 02:21:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:22,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331829275] [2025-03-09 02:21:22,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:22,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:22,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:21:22,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:21:22,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:22,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:22,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807288057] [2025-03-09 02:21:22,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:22,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:22,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:22,915 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) [2025-03-09 02:21:22,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 02:21:22,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:21:22,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:21:22,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:22,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:22,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:21:22,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:21:23,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:23,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:23,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331829275] [2025-03-09 02:21:23,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:23,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807288057] [2025-03-09 02:21:23,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807288057] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:23,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:23,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-09 02:21:23,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949343071] [2025-03-09 02:21:23,163 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:23,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:21:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:23,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:21:23,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:21:23,164 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:21:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:23,294 INFO L93 Difference]: Finished difference Result 138 states and 151 transitions. [2025-03-09 02:21:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:21:23,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2025-03-09 02:21:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:23,295 INFO L225 Difference]: With dead ends: 138 [2025-03-09 02:21:23,296 INFO L226 Difference]: Without dead ends: 124 [2025-03-09 02:21:23,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:21:23,296 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 20 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:23,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 98 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:21:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2025-03-09 02:21:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2025-03-09 02:21:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 104 states have (on average 1.2019230769230769) internal successors, (125), 113 states have internal predecessors, (125), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2025-03-09 02:21:23,302 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 47 [2025-03-09 02:21:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:23,302 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2025-03-09 02:21:23,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:21:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2025-03-09 02:21:23,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-09 02:21:23,305 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:23,305 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:23,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-09 02:21:23,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-09 02:21:23,508 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:23,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:23,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1239719617, now seen corresponding path program 1 times [2025-03-09 02:21:23,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:23,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648112975] [2025-03-09 02:21:23,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:23,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:23,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-09 02:21:23,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-09 02:21:23,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:23,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:21:23,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:23,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648112975] [2025-03-09 02:21:23,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648112975] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:23,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614877730] [2025-03-09 02:21:23,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:23,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:23,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:23,577 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) [2025-03-09 02:21:23,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 02:21:23,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-09 02:21:23,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-09 02:21:23,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:23,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:23,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:21:23,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:21:23,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:21:23,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614877730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:21:23,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:23,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-09 02:21:23,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269420315] [2025-03-09 02:21:23,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:23,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:21:23,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:23,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:21:23,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:21:23,642 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:21:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:23,657 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2025-03-09 02:21:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:21:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2025-03-09 02:21:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:23,658 INFO L225 Difference]: With dead ends: 122 [2025-03-09 02:21:23,658 INFO L226 Difference]: Without dead ends: 121 [2025-03-09 02:21:23,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:21:23,658 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:23,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:21:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-09 02:21:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-03-09 02:21:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 104 states have (on average 1.1730769230769231) internal successors, (122), 112 states have internal predecessors, (122), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2025-03-09 02:21:23,663 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 55 [2025-03-09 02:21:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:23,663 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2025-03-09 02:21:23,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:21:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2025-03-09 02:21:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-09 02:21:23,663 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:23,663 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:23,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-09 02:21:23,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:23,864 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:23,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash 223397543, now seen corresponding path program 1 times [2025-03-09 02:21:23,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:23,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576321089] [2025-03-09 02:21:23,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:23,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:23,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-09 02:21:23,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-09 02:21:23,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:23,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:21:23,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:23,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576321089] [2025-03-09 02:21:23,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576321089] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:23,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346874076] [2025-03-09 02:21:23,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:23,932 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) [2025-03-09 02:21:23,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 02:21:23,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-09 02:21:23,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-09 02:21:23,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:23,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:23,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:21:23,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:21:24,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:21:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346874076] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:21:24,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:21:24,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-09 02:21:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087301111] [2025-03-09 02:21:24,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:24,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:21:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:24,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:21:24,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:21:24,066 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-09 02:21:24,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:24,092 INFO L93 Difference]: Finished difference Result 136 states and 145 transitions. [2025-03-09 02:21:24,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:21:24,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 56 [2025-03-09 02:21:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:24,094 INFO L225 Difference]: With dead ends: 136 [2025-03-09 02:21:24,095 INFO L226 Difference]: Without dead ends: 135 [2025-03-09 02:21:24,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:21:24,096 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 18 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:24,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 199 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:21:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-03-09 02:21:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 127. [2025-03-09 02:21:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 117 states have internal predecessors, (128), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:21:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 142 transitions. [2025-03-09 02:21:24,102 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 142 transitions. Word has length 56 [2025-03-09 02:21:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:24,102 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 142 transitions. [2025-03-09 02:21:24,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-09 02:21:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 142 transitions. [2025-03-09 02:21:24,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-09 02:21:24,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:24,103 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:24,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:24,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-09 02:21:24,304 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:24,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1828865663, now seen corresponding path program 2 times [2025-03-09 02:21:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80853896] [2025-03-09 02:21:24,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:21:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:24,309 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-03-09 02:21:24,313 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-09 02:21:24,313 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:21:24,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:24,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486502551] [2025-03-09 02:21:24,314 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:21:24,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:24,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:24,317 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) [2025-03-09 02:21:24,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 02:21:24,335 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-03-09 02:21:24,350 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-09 02:21:24,350 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:21:24,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:24,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 02:21:24,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 02:21:24,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:24,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80853896] [2025-03-09 02:21:24,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486502551] [2025-03-09 02:21:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486502551] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:24,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:24,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:21:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392087098] [2025-03-09 02:21:24,641 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:24,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:21:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:24,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:21:24,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:21:24,642 INFO L87 Difference]: Start difference. First operand 127 states and 142 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:24,897 INFO L93 Difference]: Finished difference Result 139 states and 153 transitions. [2025-03-09 02:21:24,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:21:24,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 64 [2025-03-09 02:21:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:24,899 INFO L225 Difference]: With dead ends: 139 [2025-03-09 02:21:24,899 INFO L226 Difference]: Without dead ends: 137 [2025-03-09 02:21:24,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:21:24,900 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 56 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:24,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 108 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-09 02:21:24,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2025-03-09 02:21:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 117 states have internal predecessors, (126), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:21:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2025-03-09 02:21:24,904 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 64 [2025-03-09 02:21:24,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:24,905 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2025-03-09 02:21:24,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:21:24,905 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2025-03-09 02:21:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-09 02:21:24,905 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:24,905 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-09 02:21:24,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-09 02:21:25,106 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,SelfDestructingSolverStorable16 [2025-03-09 02:21:25,106 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:25,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:25,107 INFO L85 PathProgramCache]: Analyzing trace with hash 670537174, now seen corresponding path program 2 times [2025-03-09 02:21:25,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:25,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722466656] [2025-03-09 02:21:25,107 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:21:25,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:25,110 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-09 02:21:25,116 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-09 02:21:25,117 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:21:25,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:25,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387495550] [2025-03-09 02:21:25,117 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:21:25,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:25,119 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) [2025-03-09 02:21:25,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 02:21:25,137 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-09 02:21:25,151 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-09 02:21:25,151 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:21:25,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:25,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:21:25,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 02:21:25,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:21:25,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722466656] [2025-03-09 02:21:25,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387495550] [2025-03-09 02:21:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387495550] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:25,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:25,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2025-03-09 02:21:25,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819565918] [2025-03-09 02:21:25,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:25,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:21:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:25,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:21:25,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:21:25,733 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:21:27,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:21:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:27,631 INFO L93 Difference]: Finished difference Result 127 states and 140 transitions. [2025-03-09 02:21:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:21:27,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2025-03-09 02:21:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:27,632 INFO L225 Difference]: With dead ends: 127 [2025-03-09 02:21:27,632 INFO L226 Difference]: Without dead ends: 125 [2025-03-09 02:21:27,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:21:27,633 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 42 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:27,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 76 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-09 02:21:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2025-03-09 02:21:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2025-03-09 02:21:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 109 states have (on average 1.1192660550458715) internal successors, (122), 115 states have internal predecessors, (122), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:21:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 136 transitions. [2025-03-09 02:21:27,638 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 136 transitions. Word has length 71 [2025-03-09 02:21:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:27,638 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 136 transitions. [2025-03-09 02:21:27,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:21:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2025-03-09 02:21:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 02:21:27,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:27,639 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:27,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-09 02:21:27,839 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,SelfDestructingSolverStorable17 [2025-03-09 02:21:27,839 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:27,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash -688184073, now seen corresponding path program 1 times [2025-03-09 02:21:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709554628] [2025-03-09 02:21:27,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:27,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 02:21:27,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 02:21:27,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:27,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:27,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341383634] [2025-03-09 02:21:27,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:21:27,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:27,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:27,852 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) [2025-03-09 02:21:27,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 02:21:27,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 02:21:27,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 02:21:27,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:21:27,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:27,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:21:27,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 02:21:28,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:21:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709554628] [2025-03-09 02:21:28,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341383634] [2025-03-09 02:21:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341383634] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2025-03-09 02:21:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669127815] [2025-03-09 02:21:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:21:28,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:21:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:28,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:21:28,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:21:28,163 INFO L87 Difference]: Start difference. First operand 125 states and 136 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:21:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:28,479 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2025-03-09 02:21:28,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:21:28,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 72 [2025-03-09 02:21:28,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:28,480 INFO L225 Difference]: With dead ends: 125 [2025-03-09 02:21:28,480 INFO L226 Difference]: Without dead ends: 113 [2025-03-09 02:21:28,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:21:28,481 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 62 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:28,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 76 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:21:28,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-09 02:21:28,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2025-03-09 02:21:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.0707070707070707) internal successors, (106), 103 states have internal predecessors, (106), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:21:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2025-03-09 02:21:28,487 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 72 [2025-03-09 02:21:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:28,487 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2025-03-09 02:21:28,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:21:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2025-03-09 02:21:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-09 02:21:28,487 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:28,487 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:28,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-09 02:21:28,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:28,688 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:28,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash 937261504, now seen corresponding path program 3 times [2025-03-09 02:21:28,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:28,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752789115] [2025-03-09 02:21:28,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:21:28,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:28,695 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 4 equivalence classes. [2025-03-09 02:21:28,705 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 02:21:28,705 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-09 02:21:28,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:28,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151236047] [2025-03-09 02:21:28,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:21:28,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:28,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:28,708 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) [2025-03-09 02:21:28,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 02:21:28,732 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 4 equivalence classes. [2025-03-09 02:21:29,023 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 02:21:29,023 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-09 02:21:29,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:29,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:21:29,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:29,912 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 02:21:29,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:30,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:30,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752789115] [2025-03-09 02:21:30,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:30,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151236047] [2025-03-09 02:21:30,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151236047] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:30,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:30,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:21:30,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78881628] [2025-03-09 02:21:30,295 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:30,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:21:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:30,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:21:30,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:21:30,296 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:21:32,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:21:34,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:21:35,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:21:35,264 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2025-03-09 02:21:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:21:35,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 88 [2025-03-09 02:21:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:21:35,268 INFO L225 Difference]: With dead ends: 119 [2025-03-09 02:21:35,268 INFO L226 Difference]: Without dead ends: 117 [2025-03-09 02:21:35,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:21:35,269 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-03-09 02:21:35,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 113 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 5 Unknown, 0 Unchecked, 4.9s Time] [2025-03-09 02:21:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-03-09 02:21:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2025-03-09 02:21:35,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.0505050505050506) internal successors, (104), 103 states have internal predecessors, (104), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:21:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2025-03-09 02:21:35,276 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 88 [2025-03-09 02:21:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:21:35,276 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2025-03-09 02:21:35,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:21:35,277 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2025-03-09 02:21:35,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-09 02:21:35,278 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:21:35,278 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:21:35,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-09 02:21:35,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:35,479 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:21:35,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:21:35,479 INFO L85 PathProgramCache]: Analyzing trace with hash 290667009, now seen corresponding path program 4 times [2025-03-09 02:21:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:21:35,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025589997] [2025-03-09 02:21:35,479 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:21:35,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:21:35,484 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-03-09 02:21:35,495 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-03-09 02:21:35,495 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:21:35,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:21:35,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396729130] [2025-03-09 02:21:35,496 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:21:35,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:21:35,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:21:35,499 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) [2025-03-09 02:21:35,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 02:21:35,526 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-03-09 02:21:35,608 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-03-09 02:21:35,608 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:21:35,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:21:35,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-03-09 02:21:35,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:21:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 131 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:21:42,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:21:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:21:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025589997] [2025-03-09 02:21:43,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:21:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396729130] [2025-03-09 02:21:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396729130] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:21:43,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:21:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-09 02:21:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214223870] [2025-03-09 02:21:43,261 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:21:43,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 02:21:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:21:43,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 02:21:43,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=286, Unknown=1, NotChecked=0, Total=380 [2025-03-09 02:21:43,262 INFO L87 Difference]: Start difference. First operand 113 states and 118 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:21:47,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:21:56,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:01,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:03,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:07,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:11,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:22:11,825 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2025-03-09 02:22:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-09 02:22:11,826 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 112 [2025-03-09 02:22:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:22:11,827 INFO L225 Difference]: With dead ends: 142 [2025-03-09 02:22:11,827 INFO L226 Difference]: Without dead ends: 140 [2025-03-09 02:22:11,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=150, Invalid=498, Unknown=2, NotChecked=0, Total=650 [2025-03-09 02:22:11,828 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 78 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:22:11,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 166 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 545 Invalid, 2 Unknown, 0 Unchecked, 23.7s Time] [2025-03-09 02:22:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-03-09 02:22:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 123. [2025-03-09 02:22:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 109 states have (on average 1.0458715596330275) internal successors, (114), 113 states have internal predecessors, (114), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:22:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2025-03-09 02:22:11,836 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 112 [2025-03-09 02:22:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:22:11,836 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2025-03-09 02:22:11,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:22:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2025-03-09 02:22:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-09 02:22:11,837 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:22:11,837 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:22:11,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-09 02:22:12,042 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,SelfDestructingSolverStorable20 [2025-03-09 02:22:12,042 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:22:12,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:22:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash 606823128, now seen corresponding path program 2 times [2025-03-09 02:22:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:22:12,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322857756] [2025-03-09 02:22:12,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:12,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:22:12,047 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-03-09 02:22:12,056 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-03-09 02:22:12,056 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:12,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:22:12,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406490952] [2025-03-09 02:22:12,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:12,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:12,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:22:12,058 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) [2025-03-09 02:22:12,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 02:22:12,083 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-03-09 02:22:12,106 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-03-09 02:22:12,106 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:12,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:22:12,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:22:12,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:22:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-09 02:22:12,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:22:12,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:22:12,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322857756] [2025-03-09 02:22:12,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:22:12,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406490952] [2025-03-09 02:22:12,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406490952] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:22:12,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:22:12,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:22:12,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312212391] [2025-03-09 02:22:12,577 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:22:12,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:22:12,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:22:12,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:22:12,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:22:12,578 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:22:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:22:12,715 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2025-03-09 02:22:12,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:22:12,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 115 [2025-03-09 02:22:12,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:22:12,718 INFO L225 Difference]: With dead ends: 123 [2025-03-09 02:22:12,718 INFO L226 Difference]: Without dead ends: 122 [2025-03-09 02:22:12,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:22:12,721 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:22:12,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 83 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:22:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2025-03-09 02:22:12,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2025-03-09 02:22:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 109 states have (on average 1.036697247706422) internal successors, (113), 112 states have internal predecessors, (113), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:22:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2025-03-09 02:22:12,732 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 115 [2025-03-09 02:22:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:22:12,732 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2025-03-09 02:22:12,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:22:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2025-03-09 02:22:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 02:22:12,733 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:22:12,733 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:22:12,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-09 02:22:12,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-09 02:22:12,934 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:22:12,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:22:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash 350478171, now seen corresponding path program 2 times [2025-03-09 02:22:12,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:22:12,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528520618] [2025-03-09 02:22:12,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:12,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:22:12,938 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-09 02:22:12,953 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:22:12,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:12,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:22:12,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860293090] [2025-03-09 02:22:12,954 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:12,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:12,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:22:12,956 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) [2025-03-09 02:22:12,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-09 02:22:12,978 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-09 02:22:13,043 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:22:13,043 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:13,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:22:13,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-09 02:22:13,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:22:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 9 proven. 152 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-09 02:22:13,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:22:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:22:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:22:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528520618] [2025-03-09 02:22:14,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:22:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860293090] [2025-03-09 02:22:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860293090] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 02:22:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:22:14,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2025-03-09 02:22:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888645891] [2025-03-09 02:22:14,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:22:14,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:22:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:22:14,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:22:14,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:22:14,051 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:22:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:22:14,551 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2025-03-09 02:22:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:22:14,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2025-03-09 02:22:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:22:14,552 INFO L225 Difference]: With dead ends: 122 [2025-03-09 02:22:14,552 INFO L226 Difference]: Without dead ends: 121 [2025-03-09 02:22:14,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:22:14,553 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:22:14,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 85 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:22:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-09 02:22:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-03-09 02:22:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.0275229357798166) internal successors, (112), 111 states have internal predecessors, (112), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:22:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2025-03-09 02:22:14,561 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 118 [2025-03-09 02:22:14,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:22:14,562 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2025-03-09 02:22:14,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:22:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2025-03-09 02:22:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-09 02:22:14,562 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:22:14,562 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:22:14,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-09 02:22:14,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:14,763 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:22:14,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:22:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2007139734, now seen corresponding path program 2 times [2025-03-09 02:22:14,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:22:14,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242344404] [2025-03-09 02:22:14,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:14,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:22:14,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 128 statements into 2 equivalence classes. [2025-03-09 02:22:14,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 128 of 128 statements. [2025-03-09 02:22:14,771 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:14,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:22:14,878 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-09 02:22:14,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:22:14,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242344404] [2025-03-09 02:22:14,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242344404] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:22:14,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746368710] [2025-03-09 02:22:14,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:22:14,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:14,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:22:14,881 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) [2025-03-09 02:22:14,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-09 02:22:14,902 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 128 statements into 2 equivalence classes. [2025-03-09 02:22:14,920 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 128 of 128 statements. [2025-03-09 02:22:14,920 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:22:14,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:22:14,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:22:14,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:22:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-09 02:22:15,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:22:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-09 02:22:15,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746368710] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:22:15,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:22:15,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-09 02:22:15,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105093935] [2025-03-09 02:22:15,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:22:15,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:22:15,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:22:15,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:22:15,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:22:15,122 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 02:22:15,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:22:15,146 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2025-03-09 02:22:15,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:22:15,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 128 [2025-03-09 02:22:15,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:22:15,147 INFO L225 Difference]: With dead ends: 121 [2025-03-09 02:22:15,147 INFO L226 Difference]: Without dead ends: 120 [2025-03-09 02:22:15,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:22:15,148 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:22:15,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 100 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:22:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-09 02:22:15,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-09 02:22:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:22:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2025-03-09 02:22:15,157 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 128 [2025-03-09 02:22:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:22:15,157 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2025-03-09 02:22:15,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 02:22:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2025-03-09 02:22:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-09 02:22:15,158 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:22:15,158 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:22:15,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-09 02:22:15,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:15,362 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-09 02:22:15,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:22:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash -439580862, now seen corresponding path program 5 times [2025-03-09 02:22:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:22:15,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276811240] [2025-03-09 02:22:15,362 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:22:15,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:22:15,367 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 136 statements into 6 equivalence classes. [2025-03-09 02:22:15,378 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 136 of 136 statements. [2025-03-09 02:22:15,378 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-09 02:22:15,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:22:15,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001750121] [2025-03-09 02:22:15,379 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:22:15,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:22:15,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:22:15,381 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) [2025-03-09 02:22:15,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-09 02:22:15,403 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 136 statements into 6 equivalence classes. [2025-03-09 02:22:15,424 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 136 of 136 statements. [2025-03-09 02:22:15,424 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-09 02:22:15,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:22:15,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-09 02:22:15,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:22:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 221 refuted. 4 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-09 02:22:27,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:22:28,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:22:28,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276811240] [2025-03-09 02:22:28,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:22:28,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001750121] [2025-03-09 02:22:28,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001750121] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:22:28,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:22:28,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-03-09 02:22:28,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619429960] [2025-03-09 02:22:28,106 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:22:28,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 02:22:28,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:22:28,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 02:22:28,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=167, Unknown=1, NotChecked=0, Total=240 [2025-03-09 02:22:28,107 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:22:29,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:35,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:39,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:43,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:44,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:45,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:50,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:52,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:54,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:22:55,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]