./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i -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 e46fdb43c1704e8aa9295c108b22e9521ffebb273e9060ca31abf40569948ab2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:37:03,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:37:03,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:37:03,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:37:03,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:37:03,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:37:03,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:37:03,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:37:03,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:37:03,155 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:37:03,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:37:03,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:37:03,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:37:03,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:37:03,157 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:37:03,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:37:03,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:37:03,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:37:03,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:37:03,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:37:03,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:37:03,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:37:03,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:37:03,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:37:03,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:37:03,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:37:03,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:37:03,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:37:03,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:37:03,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:37:03,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:37:03,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:37:03,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:37:03,165 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e46fdb43c1704e8aa9295c108b22e9521ffebb273e9060ca31abf40569948ab2 [2024-10-14 20:37:03,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:37:03,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:37:03,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:37:03,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:37:03,424 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:37:03,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i [2024-10-14 20:37:04,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:37:04,775 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:37:04,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i [2024-10-14 20:37:04,780 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ff35571/834e6779cabf47af806c46ac2fe3ef31/FLAGdb94d109f [2024-10-14 20:37:04,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ff35571/834e6779cabf47af806c46ac2fe3ef31 [2024-10-14 20:37:04,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:37:04,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:37:04,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:37:04,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:37:04,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:37:04,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:37:04" (1/1) ... [2024-10-14 20:37:04,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a403179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:04, skipping insertion in model container [2024-10-14 20:37:04,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:37:04" (1/1) ... [2024-10-14 20:37:04,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:37:04,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:37:04,972 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:37:04,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:37:05,007 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:37:05,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05 WrapperNode [2024-10-14 20:37:05,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:37:05,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:37:05,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:37:05,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:37:05,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,035 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2024-10-14 20:37:05,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:37:05,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:37:05,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:37:05,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:37:05,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,055 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]. [2024-10-14 20:37:05,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:37:05,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:37:05,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:37:05,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:37:05,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (1/1) ... [2024-10-14 20:37:05,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:37:05,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:05,098 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) [2024-10-14 20:37:05,100 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 [2024-10-14 20:37:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:37:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:37:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:37:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:37:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:37:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:37:05,190 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:37:05,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:37:05,332 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-14 20:37:05,335 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:37:05,361 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:37:05,362 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 20:37:05,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:05 BoogieIcfgContainer [2024-10-14 20:37:05,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:37:05,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:37:05,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:37:05,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:37:05,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:37:04" (1/3) ... [2024-10-14 20:37:05,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615d8463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:37:05, skipping insertion in model container [2024-10-14 20:37:05,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:05" (2/3) ... [2024-10-14 20:37:05,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615d8463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:37:05, skipping insertion in model container [2024-10-14 20:37:05,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:05" (3/3) ... [2024-10-14 20:37:05,370 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound5.i [2024-10-14 20:37:05,383 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:37:05,383 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:37:05,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:37:05,443 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;@4c464ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:37:05,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:37:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 20:37:05,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:05,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 20:37:05,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:05,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:05,460 INFO L85 PathProgramCache]: Analyzing trace with hash 106896, now seen corresponding path program 1 times [2024-10-14 20:37:05,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:05,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577500272] [2024-10-14 20:37:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:05,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:05,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577500272] [2024-10-14 20:37:05,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577500272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:05,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:05,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:37:05,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812696521] [2024-10-14 20:37:05,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:05,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:37:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:37:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:37:05,663 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:05,737 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2024-10-14 20:37:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:05,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 20:37:05,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:05,744 INFO L225 Difference]: With dead ends: 49 [2024-10-14 20:37:05,744 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 20:37:05,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:37:05,748 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:05,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 20:37:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-14 20:37:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:37:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-10-14 20:37:05,773 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 3 [2024-10-14 20:37:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:05,773 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-10-14 20:37:05,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-10-14 20:37:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:37:05,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:05,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:05,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:37:05,775 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1930673058, now seen corresponding path program 1 times [2024-10-14 20:37:05,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072469267] [2024-10-14 20:37:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:05,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072469267] [2024-10-14 20:37:05,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072469267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:05,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:05,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:37:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42607808] [2024-10-14 20:37:05,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:05,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:05,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:05,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:05,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:37:05,874 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:05,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:05,955 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-10-14 20:37:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:37:05,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:37:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:05,957 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:37:05,957 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:37:05,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:37:05,958 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:05,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:37:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2024-10-14 20:37:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-10-14 20:37:05,963 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2024-10-14 20:37:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:05,964 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-10-14 20:37:05,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-10-14 20:37:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:37:05,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:05,964 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:05,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:37:05,965 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:05,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1930671808, now seen corresponding path program 1 times [2024-10-14 20:37:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476380584] [2024-10-14 20:37:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:06,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476380584] [2024-10-14 20:37:06,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476380584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867804873] [2024-10-14 20:37:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:06,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:06,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:06,070 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) [2024-10-14 20:37:06,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:37:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:06,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:37:06,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:06,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:06,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867804873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:06,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:06,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:37:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921965652] [2024-10-14 20:37:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:06,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:06,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:37:06,163 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:06,195 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-10-14 20:37:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:37:06,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:37:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:06,196 INFO L225 Difference]: With dead ends: 45 [2024-10-14 20:37:06,197 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:37:06,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:37:06,198 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:06,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:37:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2024-10-14 20:37:06,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-10-14 20:37:06,203 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 8 [2024-10-14 20:37:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:06,203 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-10-14 20:37:06,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-10-14 20:37:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:37:06,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:06,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:06,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:37:06,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:06,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:06,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash 278677408, now seen corresponding path program 1 times [2024-10-14 20:37:06,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:06,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236121901] [2024-10-14 20:37:06,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:06,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:06,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:06,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236121901] [2024-10-14 20:37:06,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236121901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:06,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:06,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:37:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349301063] [2024-10-14 20:37:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:06,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:37:06,503 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:06,559 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-14 20:37:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:37:06,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:37:06,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:06,561 INFO L225 Difference]: With dead ends: 45 [2024-10-14 20:37:06,561 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:37:06,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:37:06,562 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:06,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:37:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2024-10-14 20:37:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-10-14 20:37:06,567 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 9 [2024-10-14 20:37:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:06,567 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-10-14 20:37:06,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-10-14 20:37:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:37:06,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:06,567 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:37:06,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:37:06,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:06,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:06,568 INFO L85 PathProgramCache]: Analyzing trace with hash 278716137, now seen corresponding path program 1 times [2024-10-14 20:37:06,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:06,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80888501] [2024-10-14 20:37:06,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:06,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:06,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80888501] [2024-10-14 20:37:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80888501] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783915869] [2024-10-14 20:37:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:06,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:06,664 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) [2024-10-14 20:37:06,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:37:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:06,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:37:06,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:06,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:06,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783915869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:06,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:06,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:37:06,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847023462] [2024-10-14 20:37:06,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:06,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:06,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:06,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:06,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:37:06,723 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:06,764 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-10-14 20:37:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:06,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:37:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:06,766 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:37:06,766 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:37:06,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:37:06,767 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:06,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 62 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:37:06,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2024-10-14 20:37:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-10-14 20:37:06,776 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 9 [2024-10-14 20:37:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:06,776 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-10-14 20:37:06,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:06,776 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-10-14 20:37:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 20:37:06,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:06,777 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:06,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:37:06,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:06,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:06,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:06,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1060698341, now seen corresponding path program 1 times [2024-10-14 20:37:06,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:06,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350520426] [2024-10-14 20:37:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:06,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:07,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350520426] [2024-10-14 20:37:07,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350520426] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:07,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301714207] [2024-10-14 20:37:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:07,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:07,037 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) [2024-10-14 20:37:07,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:37:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:37:07,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301714207] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:07,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:07,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-14 20:37:07,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513636599] [2024-10-14 20:37:07,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:07,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:37:07,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:07,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:37:07,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:37:07,142 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:07,226 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-10-14 20:37:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:37:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 20:37:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:07,227 INFO L225 Difference]: With dead ends: 75 [2024-10-14 20:37:07,228 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 20:37:07,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:37:07,228 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:07,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:07,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 20:37:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2024-10-14 20:37:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 47 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2024-10-14 20:37:07,237 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 12 [2024-10-14 20:37:07,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:07,237 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2024-10-14 20:37:07,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2024-10-14 20:37:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:37:07,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:07,238 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:37:07,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:37:07,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:07,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:07,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:07,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1478038866, now seen corresponding path program 1 times [2024-10-14 20:37:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:07,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229928314] [2024-10-14 20:37:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229928314] [2024-10-14 20:37:07,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229928314] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470313629] [2024-10-14 20:37:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:07,509 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) [2024-10-14 20:37:07,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:37:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:37:07,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:07,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470313629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:07,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:07,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 13 [2024-10-14 20:37:07,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752802046] [2024-10-14 20:37:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:07,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:37:07,591 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:07,632 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-14 20:37:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:37:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:07,632 INFO L225 Difference]: With dead ends: 52 [2024-10-14 20:37:07,632 INFO L226 Difference]: Without dead ends: 51 [2024-10-14 20:37:07,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:37:07,633 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:07,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-14 20:37:07,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2024-10-14 20:37:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:37:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-10-14 20:37:07,640 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 13 [2024-10-14 20:37:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:07,640 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-10-14 20:37:07,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-10-14 20:37:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:37:07,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:07,641 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:07,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:37:07,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:07,841 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:07,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:07,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1425435472, now seen corresponding path program 1 times [2024-10-14 20:37:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:07,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549102195] [2024-10-14 20:37:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549102195] [2024-10-14 20:37:07,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549102195] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81091677] [2024-10-14 20:37:07,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:07,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:07,915 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) [2024-10-14 20:37:07,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:37:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:37:07,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81091677] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:08,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:08,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2024-10-14 20:37:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777401532] [2024-10-14 20:37:08,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:08,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:37:08,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:08,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:37:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:37:08,068 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:08,262 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2024-10-14 20:37:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 20:37:08,262 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:37:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:08,263 INFO L225 Difference]: With dead ends: 69 [2024-10-14 20:37:08,263 INFO L226 Difference]: Without dead ends: 68 [2024-10-14 20:37:08,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-10-14 20:37:08,264 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 86 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:08,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 98 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-14 20:37:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-10-14 20:37:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:37:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2024-10-14 20:37:08,285 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2024-10-14 20:37:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:08,286 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2024-10-14 20:37:08,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2024-10-14 20:37:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:37:08,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:08,287 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:08,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:37:08,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:08,488 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:08,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:08,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1427000159, now seen corresponding path program 1 times [2024-10-14 20:37:08,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:08,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87057047] [2024-10-14 20:37:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:37:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:37:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 20:37:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:37:08,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:08,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87057047] [2024-10-14 20:37:08,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87057047] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:08,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025222896] [2024-10-14 20:37:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:08,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:08,679 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) [2024-10-14 20:37:08,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:37:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:37:08,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:37:09,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025222896] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:09,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:09,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-10-14 20:37:09,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067151969] [2024-10-14 20:37:09,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:09,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 20:37:09,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:09,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 20:37:09,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-10-14 20:37:09,061 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:37:09,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:09,533 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2024-10-14 20:37:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-14 20:37:09,534 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 42 [2024-10-14 20:37:09,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:09,535 INFO L225 Difference]: With dead ends: 215 [2024-10-14 20:37:09,535 INFO L226 Difference]: Without dead ends: 214 [2024-10-14 20:37:09,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 20:37:09,536 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 147 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:09,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 200 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:37:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-14 20:37:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 161. [2024-10-14 20:37:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 136 states have internal predecessors, (154), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-10-14 20:37:09,553 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 42 [2024-10-14 20:37:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:09,553 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-10-14 20:37:09,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:37:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2024-10-14 20:37:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:37:09,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:09,555 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:37:09,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:37:09,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:09,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1065299529, now seen corresponding path program 1 times [2024-10-14 20:37:09,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:09,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436754773] [2024-10-14 20:37:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 20:37:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 20:37:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:09,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:09,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436754773] [2024-10-14 20:37:09,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436754773] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:09,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266886255] [2024-10-14 20:37:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:09,893 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) [2024-10-14 20:37:09,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:37:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:37:09,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:09,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:10,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266886255] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:10,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:10,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-10-14 20:37:10,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490703604] [2024-10-14 20:37:10,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:10,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:37:10,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:37:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:37:10,054 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:10,153 INFO L93 Difference]: Finished difference Result 201 states and 222 transitions. [2024-10-14 20:37:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 20:37:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-10-14 20:37:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:10,155 INFO L225 Difference]: With dead ends: 201 [2024-10-14 20:37:10,155 INFO L226 Difference]: Without dead ends: 175 [2024-10-14 20:37:10,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2024-10-14 20:37:10,155 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:10,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 96 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-14 20:37:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 166. [2024-10-14 20:37:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 141 states have (on average 1.1347517730496455) internal successors, (160), 141 states have internal predecessors, (160), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 184 transitions. [2024-10-14 20:37:10,176 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 184 transitions. Word has length 50 [2024-10-14 20:37:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:10,176 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 184 transitions. [2024-10-14 20:37:10,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 184 transitions. [2024-10-14 20:37:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 20:37:10,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:10,178 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:37:10,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:37:10,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:10,378 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:10,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash 339538073, now seen corresponding path program 2 times [2024-10-14 20:37:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:10,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821573004] [2024-10-14 20:37:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 20:37:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 20:37:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-10-14 20:37:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821573004] [2024-10-14 20:37:10,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821573004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:10,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:10,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:37:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528080758] [2024-10-14 20:37:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:10,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:37:10,471 INFO L87 Difference]: Start difference. First operand 166 states and 184 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:37:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:10,503 INFO L93 Difference]: Finished difference Result 192 states and 212 transitions. [2024-10-14 20:37:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2024-10-14 20:37:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:10,504 INFO L225 Difference]: With dead ends: 192 [2024-10-14 20:37:10,504 INFO L226 Difference]: Without dead ends: 166 [2024-10-14 20:37:10,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:37:10,505 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:10,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 58 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-14 20:37:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 147. [2024-10-14 20:37:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.1229508196721312) internal successors, (137), 122 states have internal predecessors, (137), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2024-10-14 20:37:10,516 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 55 [2024-10-14 20:37:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:10,516 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2024-10-14 20:37:10,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:37:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2024-10-14 20:37:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 20:37:10,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:10,518 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:37:10,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 20:37:10,518 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:10,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash 593678544, now seen corresponding path program 1 times [2024-10-14 20:37:10,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:10,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206895404] [2024-10-14 20:37:10,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:37:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 20:37:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:37:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 20:37:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:37:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 20:37:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 20:37:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 20:37:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 90 proven. 7 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-10-14 20:37:10,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:10,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206895404] [2024-10-14 20:37:10,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206895404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:10,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627068983] [2024-10-14 20:37:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:10,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:10,660 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) [2024-10-14 20:37:10,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:37:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:37:10,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-14 20:37:10,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-10-14 20:37:11,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627068983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:11,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:11,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2024-10-14 20:37:11,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462914894] [2024-10-14 20:37:11,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:11,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:37:11,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:11,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:37:11,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:37:11,013 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 7 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-10-14 20:37:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:11,322 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2024-10-14 20:37:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 20:37:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 7 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 102 [2024-10-14 20:37:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:11,324 INFO L225 Difference]: With dead ends: 241 [2024-10-14 20:37:11,324 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 20:37:11,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 200 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1164, Unknown=0, NotChecked=0, Total=1482 [2024-10-14 20:37:11,326 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 52 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:11,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 284 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 20:37:11,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 20:37:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 20:37:11,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-10-14 20:37:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:11,327 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 20:37:11,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 7 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-10-14 20:37:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 20:37:11,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 20:37:11,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-14 20:37:11,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-14 20:37:11,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-14 20:37:11,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-14 20:37:11,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:37:11,535 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,SelfDestructingSolverStorable11 [2024-10-14 20:37:11,538 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:11,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 20:37:11,721 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 20:37:11,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:37:11 BoogieIcfgContainer [2024-10-14 20:37:11,735 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 20:37:11,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 20:37:11,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 20:37:11,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 20:37:11,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:05" (3/4) ... [2024-10-14 20:37:11,737 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 20:37:11,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-14 20:37:11,744 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 20:37:11,744 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 20:37:11,744 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 20:37:11,744 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 20:37:11,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 20:37:11,813 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 20:37:11,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 20:37:11,814 INFO L158 Benchmark]: Toolchain (without parser) took 7017.45ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 152.5MB in the beginning and 114.8MB in the end (delta: 37.6MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,814 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 91.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:37:11,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.06ms. Allocated memory is still 188.7MB. Free memory was 152.5MB in the beginning and 141.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.75ms. Allocated memory is still 188.7MB. Free memory was 141.1MB in the beginning and 139.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,815 INFO L158 Benchmark]: Boogie Preprocessor took 27.92ms. Allocated memory is still 188.7MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,815 INFO L158 Benchmark]: RCFGBuilder took 297.54ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 126.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,815 INFO L158 Benchmark]: TraceAbstraction took 6370.82ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 125.2MB in the beginning and 120.1MB in the end (delta: 5.1MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,815 INFO L158 Benchmark]: Witness Printer took 77.86ms. Allocated memory is still 226.5MB. Free memory was 119.0MB in the beginning and 114.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 20:37:11,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 91.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.06ms. Allocated memory is still 188.7MB. Free memory was 152.5MB in the beginning and 141.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.75ms. Allocated memory is still 188.7MB. Free memory was 141.1MB in the beginning and 139.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.92ms. Allocated memory is still 188.7MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.54ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 126.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6370.82ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 125.2MB in the beginning and 120.1MB in the end (delta: 5.1MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 77.86ms. Allocated memory is still 226.5MB. Free memory was 119.0MB in the beginning and 114.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 447 mSDsluCounter, 1168 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 966 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 924 IncrementalHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 202 mSDtfsCounter, 924 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 653 GetRequests, 418 SyntacticMatches, 21 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=10, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 132 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 1634 SizeOfPredicates, 40 NumberOfNonLiveVariables, 677 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 1177/1460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 5)) || (counter == 0)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((counter <= 5) && (3 <= counter)) || ((6 <= counter) && (counter <= 2147483645))) || ((counter <= 3) && (1 <= counter))) RESULT: Ultimate proved your program to be correct! [2024-10-14 20:37:11,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE