./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_27_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 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/array-examples/sanfoundry_27_ground.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 40b578d2ddf68a49bc52037a6e4860a392bad1b49fc77d85682d536447864a03 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:30:19,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:30:20,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 19:30:20,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:30:20,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:30:20,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:30:20,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:30:20,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:30:20,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:30:20,042 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:30:20,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:30:20,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:30:20,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:30:20,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:30:20,045 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:30:20,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:30:20,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 19:30:20,046 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:30:20,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:30:20,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:30:20,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:30:20,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 19:30:20,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:30:20,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 19:30:20,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:30:20,048 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 19:30:20,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:30:20,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:30:20,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 19:30:20,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:30:20,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:30:20,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:30:20,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:30:20,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:30:20,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:30:20,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:30:20,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:30:20,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 19:30:20,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:30:20,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:30:20,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:30:20,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:30:20,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:30:20,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:30:20,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40b578d2ddf68a49bc52037a6e4860a392bad1b49fc77d85682d536447864a03 [2024-10-24 19:30:20,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:30:20,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:30:20,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:30:20,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:30:20,310 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:30:20,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_27_ground.i [2024-10-24 19:30:21,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:30:21,725 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:30:21,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_27_ground.i [2024-10-24 19:30:21,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeac6e39a/d69e4446c2a04b1894e07cb86e048034/FLAG429a588b4 [2024-10-24 19:30:21,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeac6e39a/d69e4446c2a04b1894e07cb86e048034 [2024-10-24 19:30:21,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:30:21,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:30:21,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:30:21,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:30:21,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:30:21,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:21,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480c9373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21, skipping insertion in model container [2024-10-24 19:30:21,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:21,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:30:21,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:30:21,929 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:30:21,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:30:21,957 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:30:21,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21 WrapperNode [2024-10-24 19:30:21,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:30:21,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:30:21,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:30:21,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:30:21,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:21,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:21,985 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-10-24 19:30:21,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:30:21,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:30:21,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:30:21,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:30:21,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:21,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,013 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-24 19:30:22,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:30:22,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:30:22,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:30:22,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:30:22,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (1/1) ... [2024-10-24 19:30:22,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:30:22,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:22,065 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) [2024-10-24 19:30:22,068 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 [2024-10-24 19:30:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:30:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:30:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 19:30:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 19:30:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 19:30:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 19:30:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:30:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:30:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 19:30:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 19:30:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 19:30:22,165 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:30:22,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:30:22,285 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-24 19:30:22,285 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:30:22,307 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:30:22,307 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 19:30:22,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:30:22 BoogieIcfgContainer [2024-10-24 19:30:22,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:30:22,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:30:22,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:30:22,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:30:22,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:30:21" (1/3) ... [2024-10-24 19:30:22,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2378e751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:30:22, skipping insertion in model container [2024-10-24 19:30:22,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:21" (2/3) ... [2024-10-24 19:30:22,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2378e751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:30:22, skipping insertion in model container [2024-10-24 19:30:22,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:30:22" (3/3) ... [2024-10-24 19:30:22,314 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_27_ground.i [2024-10-24 19:30:22,325 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:30:22,325 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-24 19:30:22,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:30:22,372 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;@5364ea8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:30:22,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:30:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 25 states have internal predecessors, (34), 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) [2024-10-24 19:30:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 19:30:22,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:22,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 19:30:22,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:22,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash 111241, now seen corresponding path program 1 times [2024-10-24 19:30:22,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:22,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451008975] [2024-10-24 19:30:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:22,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451008975] [2024-10-24 19:30:22,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451008975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:22,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:30:22,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:30:22,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676353277] [2024-10-24 19:30:22,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:22,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:30:22,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:30:22,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:22,594 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 25 states have internal predecessors, (34), 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) 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) [2024-10-24 19:30:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:22,649 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2024-10-24 19:30:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:30:22,652 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 [2024-10-24 19:30:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:22,657 INFO L225 Difference]: With dead ends: 50 [2024-10-24 19:30:22,657 INFO L226 Difference]: Without dead ends: 25 [2024-10-24 19:30:22,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:22,661 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:22,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-24 19:30:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-24 19:30:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 24 states have internal predecessors, (28), 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) [2024-10-24 19:30:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-10-24 19:30:22,694 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 3 [2024-10-24 19:30:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:22,694 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-10-24 19:30:22,694 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) [2024-10-24 19:30:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-10-24 19:30:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 19:30:22,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:22,695 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 19:30:22,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:30:22,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:22,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash -980938850, now seen corresponding path program 1 times [2024-10-24 19:30:22,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:22,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245237761] [2024-10-24 19:30:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:22,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245237761] [2024-10-24 19:30:22,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245237761] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:22,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650958890] [2024-10-24 19:30:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:22,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:22,857 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) [2024-10-24 19:30:22,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 19:30:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:22,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:30:22,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:22,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:30:22,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650958890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:22,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:30:22,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 19:30:22,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107144092] [2024-10-24 19:30:22,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:22,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:30:22,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:22,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:30:22,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 19:30:22,971 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:30:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:23,026 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2024-10-24 19:30:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:30:23,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 19:30:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:23,027 INFO L225 Difference]: With dead ends: 28 [2024-10-24 19:30:23,028 INFO L226 Difference]: Without dead ends: 27 [2024-10-24 19:30:23,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 19:30:23,029 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:23,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-24 19:30:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2024-10-24 19:30:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 23 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) [2024-10-24 19:30:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-10-24 19:30:23,035 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 6 [2024-10-24 19:30:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:23,035 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-10-24 19:30:23,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:30:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-10-24 19:30:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 19:30:23,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:23,036 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-10-24 19:30:23,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 19:30:23,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:23,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:23,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash -344333232, now seen corresponding path program 1 times [2024-10-24 19:30:23,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:23,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537525838] [2024-10-24 19:30:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:23,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:23,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 19:30:23,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:23,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537525838] [2024-10-24 19:30:23,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537525838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:30:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:30:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590794875] [2024-10-24 19:30:23,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:23,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:30:23,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:23,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:30:23,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:30:23,296 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-24 19:30:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:23,310 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-10-24 19:30:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:30:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-10-24 19:30:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:23,311 INFO L225 Difference]: With dead ends: 24 [2024-10-24 19:30:23,312 INFO L226 Difference]: Without dead ends: 23 [2024-10-24 19:30:23,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:30:23,313 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:23,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-24 19:30:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-10-24 19:30:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 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) [2024-10-24 19:30:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-10-24 19:30:23,318 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2024-10-24 19:30:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:23,319 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-24 19:30:23,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-24 19:30:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-10-24 19:30:23,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 19:30:23,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:23,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:23,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:30:23,320 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:23,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:23,321 INFO L85 PathProgramCache]: Analyzing trace with hash 447072248, now seen corresponding path program 1 times [2024-10-24 19:30:23,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:23,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325942437] [2024-10-24 19:30:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:23,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:23,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:23,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325942437] [2024-10-24 19:30:23,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325942437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741800321] [2024-10-24 19:30:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:23,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:23,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:23,420 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) [2024-10-24 19:30:23,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 19:30:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:23,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:30:23,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:23,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:30:23,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741800321] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:23,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:23,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-24 19:30:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944686457] [2024-10-24 19:30:23,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:23,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 19:30:23,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:23,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 19:30:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 19:30:23,525 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2024-10-24 19:30:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:23,572 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2024-10-24 19:30:23,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:30:23,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 10 [2024-10-24 19:30:23,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:23,573 INFO L225 Difference]: With dead ends: 46 [2024-10-24 19:30:23,573 INFO L226 Difference]: Without dead ends: 30 [2024-10-24 19:30:23,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 19:30:23,574 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:23,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:23,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-24 19:30:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-10-24 19:30:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 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) [2024-10-24 19:30:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-10-24 19:30:23,580 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2024-10-24 19:30:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:23,580 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-10-24 19:30:23,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2024-10-24 19:30:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-10-24 19:30:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-24 19:30:23,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:23,581 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:23,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 19:30:23,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-24 19:30:23,784 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:23,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:23,785 INFO L85 PathProgramCache]: Analyzing trace with hash -421642216, now seen corresponding path program 2 times [2024-10-24 19:30:23,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:23,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672661765] [2024-10-24 19:30:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:23,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 19:30:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:23,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672661765] [2024-10-24 19:30:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672661765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:30:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:30:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458275141] [2024-10-24 19:30:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:23,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:30:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:30:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:23,844 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-24 19:30:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:23,881 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-10-24 19:30:23,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:30:23,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 16 [2024-10-24 19:30:23,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:23,882 INFO L225 Difference]: With dead ends: 34 [2024-10-24 19:30:23,883 INFO L226 Difference]: Without dead ends: 32 [2024-10-24 19:30:23,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:23,884 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:23,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:23,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-24 19:30:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-24 19:30:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 31 states have internal predecessors, (36), 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) [2024-10-24 19:30:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-10-24 19:30:23,892 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2024-10-24 19:30:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:23,893 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-24 19:30:23,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-24 19:30:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-10-24 19:30:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 19:30:23,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:23,895 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:23,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:30:23,895 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:23,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 384153300, now seen corresponding path program 1 times [2024-10-24 19:30:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941041070] [2024-10-24 19:30:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:23,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:24,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941041070] [2024-10-24 19:30:24,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941041070] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396847918] [2024-10-24 19:30:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:24,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:24,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:24,025 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) [2024-10-24 19:30:24,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 19:30:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:24,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 19:30:24,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:24,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:24,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396847918] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:24,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:24,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-24 19:30:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364826895] [2024-10-24 19:30:24,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:24,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 19:30:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 19:30:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 19:30:24,210 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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) [2024-10-24 19:30:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:24,273 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-10-24 19:30:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:30:24,273 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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 21 [2024-10-24 19:30:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:24,274 INFO L225 Difference]: With dead ends: 65 [2024-10-24 19:30:24,274 INFO L226 Difference]: Without dead ends: 44 [2024-10-24 19:30:24,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 19:30:24,275 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:24,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 84 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:30:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-24 19:30:24,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-24 19:30:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 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) [2024-10-24 19:30:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-10-24 19:30:24,281 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 21 [2024-10-24 19:30:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:24,281 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-10-24 19:30:24,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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) [2024-10-24 19:30:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-10-24 19:30:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-24 19:30:24,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:24,282 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:24,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 19:30:24,482 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 [2024-10-24 19:30:24,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:24,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1382659732, now seen corresponding path program 2 times [2024-10-24 19:30:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:24,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497849642] [2024-10-24 19:30:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:24,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:24,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497849642] [2024-10-24 19:30:24,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497849642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:24,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791721381] [2024-10-24 19:30:24,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:30:24,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:24,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:24,740 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) [2024-10-24 19:30:24,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 19:30:24,800 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:30:24,800 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:30:24,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:30:24,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:24,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:25,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791721381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:25,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:25,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-10-24 19:30:25,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832370286] [2024-10-24 19:30:25,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:25,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-24 19:30:25,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:25,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-24 19:30:25,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 19:30:25,121 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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) [2024-10-24 19:30:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:25,218 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2024-10-24 19:30:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 19:30:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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 33 [2024-10-24 19:30:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:25,220 INFO L225 Difference]: With dead ends: 89 [2024-10-24 19:30:25,220 INFO L226 Difference]: Without dead ends: 68 [2024-10-24 19:30:25,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 19:30:25,221 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:25,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 130 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:30:25,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-24 19:30:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-24 19:30:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.125) internal successors, (72), 67 states have internal predecessors, (72), 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) [2024-10-24 19:30:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2024-10-24 19:30:25,225 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33 [2024-10-24 19:30:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:25,226 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2024-10-24 19:30:25,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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) [2024-10-24 19:30:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2024-10-24 19:30:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 19:30:25,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:25,227 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:25,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 19:30:25,427 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 [2024-10-24 19:30:25,428 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:25,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1432562156, now seen corresponding path program 3 times [2024-10-24 19:30:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:25,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863855927] [2024-10-24 19:30:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 19:30:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:26,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863855927] [2024-10-24 19:30:26,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863855927] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:26,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002081315] [2024-10-24 19:30:26,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:30:26,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:26,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:26,070 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) [2024-10-24 19:30:26,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 19:30:26,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 19:30:26,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:30:26,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:30:26,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-10-24 19:30:26,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:30:26,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002081315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:26,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:30:26,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 37 [2024-10-24 19:30:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523660016] [2024-10-24 19:30:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:26,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:30:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:26,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:30:26,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 19:30:26,216 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-10-24 19:30:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:26,254 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2024-10-24 19:30:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:30:26,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 57 [2024-10-24 19:30:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:26,255 INFO L225 Difference]: With dead ends: 68 [2024-10-24 19:30:26,255 INFO L226 Difference]: Without dead ends: 67 [2024-10-24 19:30:26,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 19:30:26,256 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:26,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 35 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-24 19:30:26,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-10-24 19:30:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.109375) internal successors, (71), 66 states have internal predecessors, (71), 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) [2024-10-24 19:30:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2024-10-24 19:30:26,261 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 57 [2024-10-24 19:30:26,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:26,261 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2024-10-24 19:30:26,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-10-24 19:30:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2024-10-24 19:30:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 19:30:26,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:26,262 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 19:30:26,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 19:30:26,462 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 [2024-10-24 19:30:26,463 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:26,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1459753807, now seen corresponding path program 1 times [2024-10-24 19:30:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:26,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735292684] [2024-10-24 19:30:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-10-24 19:30:26,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:26,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735292684] [2024-10-24 19:30:26,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735292684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:26,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:30:26,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:30:26,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226832708] [2024-10-24 19:30:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:26,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:30:26,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:30:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:26,542 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-24 19:30:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:26,564 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2024-10-24 19:30:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:30:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 58 [2024-10-24 19:30:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:26,565 INFO L225 Difference]: With dead ends: 67 [2024-10-24 19:30:26,565 INFO L226 Difference]: Without dead ends: 66 [2024-10-24 19:30:26,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:26,566 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:26,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-24 19:30:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2024-10-24 19:30:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 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) [2024-10-24 19:30:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2024-10-24 19:30:26,576 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 58 [2024-10-24 19:30:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:26,576 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2024-10-24 19:30:26,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-24 19:30:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2024-10-24 19:30:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 19:30:26,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:26,579 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:26,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:30:26,580 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:26,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1944754176, now seen corresponding path program 1 times [2024-10-24 19:30:26,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:26,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292135138] [2024-10-24 19:30:26,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:26,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-10-24 19:30:26,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:26,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292135138] [2024-10-24 19:30:26,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292135138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:26,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227880061] [2024-10-24 19:30:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:26,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:26,681 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) [2024-10-24 19:30:26,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 19:30:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:26,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 19:30:26,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 19:30:27,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 19:30:27,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227880061] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:27,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:27,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 32] total 66 [2024-10-24 19:30:27,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861177486] [2024-10-24 19:30:27,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:27,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-24 19:30:27,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:27,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-24 19:30:27,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=3199, Unknown=0, NotChecked=0, Total=4290 [2024-10-24 19:30:27,913 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 66 states, 66 states have (on average 1.7878787878787878) internal successors, (118), 66 states have internal predecessors, (118), 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) [2024-10-24 19:30:28,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:28,068 INFO L93 Difference]: Finished difference Result 132 states and 156 transitions. [2024-10-24 19:30:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-10-24 19:30:28,069 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.7878787878787878) internal successors, (118), 66 states have internal predecessors, (118), 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 59 [2024-10-24 19:30:28,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:28,069 INFO L225 Difference]: With dead ends: 132 [2024-10-24 19:30:28,069 INFO L226 Difference]: Without dead ends: 117 [2024-10-24 19:30:28,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1286 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1091, Invalid=3199, Unknown=0, NotChecked=0, Total=4290 [2024-10-24 19:30:28,071 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:28,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 92 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:30:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-24 19:30:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-10-24 19:30:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 113 states have (on average 1.0530973451327434) internal successors, (119), 114 states have internal predecessors, (119), 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) [2024-10-24 19:30:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2024-10-24 19:30:28,076 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 59 [2024-10-24 19:30:28,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:28,077 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2024-10-24 19:30:28,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.7878787878787878) internal successors, (118), 66 states have internal predecessors, (118), 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) [2024-10-24 19:30:28,077 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2024-10-24 19:30:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 19:30:28,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:28,078 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:28,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 19:30:28,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:28,280 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:28,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 397320260, now seen corresponding path program 2 times [2024-10-24 19:30:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:28,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624802094] [2024-10-24 19:30:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:28,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-10-24 19:30:28,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:28,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624802094] [2024-10-24 19:30:28,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624802094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:30:28,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:30:28,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:30:28,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29133333] [2024-10-24 19:30:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:30:28,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:30:28,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:28,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:30:28,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:28,441 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-24 19:30:28,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:28,456 INFO L93 Difference]: Finished difference Result 122 states and 126 transitions. [2024-10-24 19:30:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:30:28,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 112 [2024-10-24 19:30:28,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:28,457 INFO L225 Difference]: With dead ends: 122 [2024-10-24 19:30:28,457 INFO L226 Difference]: Without dead ends: 120 [2024-10-24 19:30:28,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:30:28,458 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 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 [2024-10-24 19:30:28,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:30:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-24 19:30:28,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-24 19:30:28,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0508474576271187) internal successors, (124), 119 states have internal predecessors, (124), 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) [2024-10-24 19:30:28,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2024-10-24 19:30:28,467 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 112 [2024-10-24 19:30:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:28,470 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2024-10-24 19:30:28,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-24 19:30:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2024-10-24 19:30:28,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 19:30:28,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:28,472 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:28,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:30:28,472 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:28,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash 105948133, now seen corresponding path program 1 times [2024-10-24 19:30:28,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:28,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485050228] [2024-10-24 19:30:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:30,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:30,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485050228] [2024-10-24 19:30:30,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485050228] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:30,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324412725] [2024-10-24 19:30:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:30,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:30,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:30,416 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) [2024-10-24 19:30:30,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 19:30:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:30,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-24 19:30:30,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:30,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:33,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324412725] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:33,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:33,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 129 [2024-10-24 19:30:33,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158338170] [2024-10-24 19:30:33,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:33,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-10-24 19:30:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:33,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-10-24 19:30:33,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-10-24 19:30:33,065 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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) [2024-10-24 19:30:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:33,330 INFO L93 Difference]: Finished difference Result 241 states and 280 transitions. [2024-10-24 19:30:33,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-10-24 19:30:33,334 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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 117 [2024-10-24 19:30:33,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:33,335 INFO L225 Difference]: With dead ends: 241 [2024-10-24 19:30:33,335 INFO L226 Difference]: Without dead ends: 216 [2024-10-24 19:30:33,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5206 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-10-24 19:30:33,338 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:33,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 123 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 19:30:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-24 19:30:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-10-24 19:30:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 214 states have (on average 1.02803738317757) internal successors, (220), 215 states have internal predecessors, (220), 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) [2024-10-24 19:30:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 220 transitions. [2024-10-24 19:30:33,348 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 220 transitions. Word has length 117 [2024-10-24 19:30:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:33,348 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 220 transitions. [2024-10-24 19:30:33,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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) [2024-10-24 19:30:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 220 transitions. [2024-10-24 19:30:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-24 19:30:33,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:33,352 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:33,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 19:30:33,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:33,552 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:33,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 962273765, now seen corresponding path program 2 times [2024-10-24 19:30:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:33,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318384924] [2024-10-24 19:30:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:30:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:39,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:30:39,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318384924] [2024-10-24 19:30:39,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318384924] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:30:39,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673282966] [2024-10-24 19:30:39,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:30:39,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:30:39,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:30:39,276 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) [2024-10-24 19:30:39,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 19:30:39,444 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:30:39,444 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:30:39,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-10-24 19:30:39,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:30:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:39,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:30:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:30:48,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673282966] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:30:48,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:30:48,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 257 [2024-10-24 19:30:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141988801] [2024-10-24 19:30:48,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:30:48,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2024-10-24 19:30:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:30:48,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2024-10-24 19:30:48,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-10-24 19:30:48,431 INFO L87 Difference]: Start difference. First operand 216 states and 220 transitions. Second operand has 258 states, 258 states have (on average 1.550387596899225) internal successors, (400), 257 states have internal predecessors, (400), 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) [2024-10-24 19:30:49,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:30:49,135 INFO L93 Difference]: Finished difference Result 433 states and 504 transitions. [2024-10-24 19:30:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2024-10-24 19:30:49,136 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 1.550387596899225) internal successors, (400), 257 states have internal predecessors, (400), 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 213 [2024-10-24 19:30:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:30:49,137 INFO L225 Difference]: With dead ends: 433 [2024-10-24 19:30:49,137 INFO L226 Difference]: Without dead ends: 408 [2024-10-24 19:30:49,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20662 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-10-24 19:30:49,140 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 19:30:49,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 199 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 19:30:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-10-24 19:30:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2024-10-24 19:30:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 406 states have (on average 1.0147783251231528) internal successors, (412), 407 states have internal predecessors, (412), 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) [2024-10-24 19:30:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 412 transitions. [2024-10-24 19:30:49,151 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 412 transitions. Word has length 213 [2024-10-24 19:30:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:30:49,151 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 412 transitions. [2024-10-24 19:30:49,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 1.550387596899225) internal successors, (400), 257 states have internal predecessors, (400), 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) [2024-10-24 19:30:49,152 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 412 transitions. [2024-10-24 19:30:49,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-10-24 19:30:49,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:30:49,155 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:30:49,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 19:30:49,355 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,SelfDestructingSolverStorable12 [2024-10-24 19:30:49,356 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:30:49,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:30:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 439885285, now seen corresponding path program 3 times [2024-10-24 19:30:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:30:49,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381170357] [2024-10-24 19:30:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:30:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:30:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:31:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 24141 backedges. 0 proven. 24130 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 19:31:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:31:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381170357] [2024-10-24 19:31:11,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381170357] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:31:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182796970] [2024-10-24 19:31:11,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:31:11,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:31:11,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:31:11,482 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:31:11,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 19:31:11,661 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 19:31:11,661 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:31:11,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:31:11,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:31:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 24141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24137 trivial. 0 not checked. [2024-10-24 19:31:11,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:31:11,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182796970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:31:11,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:31:11,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [256] total 260 [2024-10-24 19:31:11,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435246906] [2024-10-24 19:31:11,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:31:11,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:31:11,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:31:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:31:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2024-10-24 19:31:11,906 INFO L87 Difference]: Start difference. First operand 408 states and 412 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-10-24 19:31:11,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:31:11,919 INFO L93 Difference]: Finished difference Result 408 states and 412 transitions. [2024-10-24 19:31:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:31:11,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 405 [2024-10-24 19:31:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:31:11,921 INFO L225 Difference]: With dead ends: 408 [2024-10-24 19:31:11,921 INFO L226 Difference]: Without dead ends: 407 [2024-10-24 19:31:11,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16761 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2024-10-24 19:31:11,924 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:31:11,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:31:11,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-10-24 19:31:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2024-10-24 19:31:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.0123152709359606) internal successors, (411), 406 states have internal predecessors, (411), 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) [2024-10-24 19:31:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 411 transitions. [2024-10-24 19:31:11,933 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 411 transitions. Word has length 405 [2024-10-24 19:31:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:31:11,934 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 411 transitions. [2024-10-24 19:31:11,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-10-24 19:31:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 411 transitions. [2024-10-24 19:31:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-10-24 19:31:11,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:31:11,937 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:31:11,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 19:31:12,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 19:31:12,139 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:31:12,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:31:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash 751542050, now seen corresponding path program 1 times [2024-10-24 19:31:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:31:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860047954] [2024-10-24 19:31:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:31:12,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:31:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:31:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 24142 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24138 trivial. 0 not checked. [2024-10-24 19:31:12,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:31:12,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860047954] [2024-10-24 19:31:12,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860047954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:31:12,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:31:12,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:31:12,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890730441] [2024-10-24 19:31:12,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:31:12,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:31:12,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:31:12,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:31:12,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:31:12,349 INFO L87 Difference]: Start difference. First operand 407 states and 411 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-24 19:31:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:31:12,364 INFO L93 Difference]: Finished difference Result 407 states and 411 transitions. [2024-10-24 19:31:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:31:12,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 406 [2024-10-24 19:31:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:31:12,365 INFO L225 Difference]: With dead ends: 407 [2024-10-24 19:31:12,365 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 19:31:12,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:31:12,368 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:31:12,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:31:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 19:31:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 19:31:12,369 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) [2024-10-24 19:31:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 19:31:12,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2024-10-24 19:31:12,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:31:12,370 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 19:31:12,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-24 19:31:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 19:31:12,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 19:31:12,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-10-24 19:31:12,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-24 19:31:12,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-24 19:31:12,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-24 19:31:12,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-24 19:31:12,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-10-24 19:31:12,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 19:31:12,375 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 19:31:12,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 19:31:12,510 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:31:12,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:31:12 BoogieIcfgContainer [2024-10-24 19:31:12,523 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:31:12,524 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:31:12,524 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:31:12,524 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:31:12,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:30:22" (3/4) ... [2024-10-24 19:31:12,526 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:31:12,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 19:31:12,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 19:31:12,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 19:31:12,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 19:31:12,613 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:31:12,615 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:31:12,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:31:12,616 INFO L158 Benchmark]: Toolchain (without parser) took 50870.77ms. Allocated memory was 144.7MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 75.5MB in the beginning and 926.5MB in the end (delta: -850.9MB). Peak memory consumption was 421.2MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,616 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 144.7MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:31:12,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.76ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 115.4MB in the end (delta: -40.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.92ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 113.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,617 INFO L158 Benchmark]: Boogie Preprocessor took 45.43ms. Allocated memory is still 144.7MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,617 INFO L158 Benchmark]: RCFGBuilder took 274.83ms. Allocated memory is still 144.7MB. Free memory was 111.7MB in the beginning and 97.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,618 INFO L158 Benchmark]: TraceAbstraction took 50213.85ms. Allocated memory was 144.7MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 97.8MB in the beginning and 930.7MB in the end (delta: -832.8MB). Peak memory consumption was 437.8MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,618 INFO L158 Benchmark]: Witness Printer took 91.61ms. Allocated memory is still 1.4GB. Free memory was 930.7MB in the beginning and 926.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:31:12,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 144.7MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.76ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 115.4MB in the end (delta: -40.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.92ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 113.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.43ms. Allocated memory is still 144.7MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.83ms. Allocated memory is still 144.7MB. Free memory was 111.7MB in the beginning and 97.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 50213.85ms. Allocated memory was 144.7MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 97.8MB in the beginning and 930.7MB in the end (delta: -832.8MB). Peak memory consumption was 437.8MB. Max. memory is 16.1GB. * Witness Printer took 91.61ms. Allocated memory is still 1.4GB. Free memory was 930.7MB in the beginning and 926.5MB 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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 1 procedures, 26 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 50.0s, OverallIterations: 15, TraceHistogramMax: 127, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 1042 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 826 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1434 IncrementalHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 216 mSDtfsCounter, 1434 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1892 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 814 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44673 ImplicationChecksByTransitivity, 29.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=13, InterpolantAutomatonStates: 539, 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, 15 MinimizatonAttempts, 13 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 44.7s InterpolantComputationTime, 2444 NumberOfCodeBlocks, 2019 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2867 ConstructedInterpolants, 0 QuantifiedInterpolants, 5937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2144 ConjunctsInSsa, 266 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 50839/98255 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 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((1 < i) || (i == 1)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (0 < (2147483649 + x)) RESULT: Ultimate proved your program to be correct! [2024-10-24 19:31:12,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE