/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:27:23,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:27:23,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:27:23,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:27:23,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:27:23,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:27:23,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:27:23,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:27:23,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:27:23,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:27:23,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:27:23,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:27:23,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:27:23,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:27:23,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:27:23,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:27:23,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:27:23,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:27:23,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:27:23,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:27:23,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:27:23,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:27:23,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:27:23,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:27:23,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:27:23,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:27:23,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:27:23,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:27:23,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:27:23,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:27:23,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:27:23,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:27:23,651 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:27:23,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:27:23,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:27:23,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:27:23,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:27:23,653 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:27:23,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:27:23,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:27:23,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:27:23,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:27:23,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:27:23,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:27:23,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:27:23,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:27:23,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:27:23,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:27:23,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:27:23,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:27:23,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:23,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:27:23,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:27:23,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:27:23,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:27:23,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:27:23,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:27:23,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:27:24,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:27:24,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:27:24,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:27:24,030 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:27:24,032 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:27:24,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2022-10-16 17:27:24,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cbd31db/043cb45dee324361b267b317c802016c/FLAGe95a9f29f [2022-10-16 17:27:24,709 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:27:24,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2022-10-16 17:27:24,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cbd31db/043cb45dee324361b267b317c802016c/FLAGe95a9f29f [2022-10-16 17:27:25,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cbd31db/043cb45dee324361b267b317c802016c [2022-10-16 17:27:25,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:27:25,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:27:25,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:25,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:27:25,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:27:25,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b438e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25, skipping insertion in model container [2022-10-16 17:27:25,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:27:25,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:27:25,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:25,330 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:27:25,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:25,364 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:27:25,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25 WrapperNode [2022-10-16 17:27:25,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:25,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:25,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:27:25,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:27:25,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,403 INFO L138 Inliner]: procedures = 11, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-10-16 17:27:25,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:25,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:27:25,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:27:25,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:27:25,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:27:25,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:27:25,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:27:25,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:27:25,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (1/1) ... [2022-10-16 17:27:25,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:25,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:25,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:27:25,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:27:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:27:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-10-16 17:27:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-10-16 17:27:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:27:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:27:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:27:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:27:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:27:25,685 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:27:25,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:27:25,932 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:27:25,948 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:27:25,948 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:27:25,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:25 BoogieIcfgContainer [2022-10-16 17:27:25,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:27:25,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:27:25,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:27:25,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:27:25,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:27:25" (1/3) ... [2022-10-16 17:27:25,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0efc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:25, skipping insertion in model container [2022-10-16 17:27:25,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:25" (2/3) ... [2022-10-16 17:27:25,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0efc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:25, skipping insertion in model container [2022-10-16 17:27:25,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:25" (3/3) ... [2022-10-16 17:27:25,978 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex11B.i [2022-10-16 17:27:26,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:27:26,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:27:26,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:27:26,080 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@71b141c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:27:26,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:27:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 21 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:27:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:27:26,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:26,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:26,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:26,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2034038907, now seen corresponding path program 1 times [2022-10-16 17:27:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:26,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551297320] [2022-10-16 17:27:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:26,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:26,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:26,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551297320] [2022-10-16 17:27:26,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551297320] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:26,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:26,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:27:26,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297361327] [2022-10-16 17:27:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:26,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:27:26,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:26,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:27:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:27:26,881 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 21 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:26,995 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2022-10-16 17:27:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:27:26,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 17:27:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:27,007 INFO L225 Difference]: With dead ends: 44 [2022-10-16 17:27:27,008 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 17:27:27,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:27:27,016 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:27,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:27:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 17:27:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2022-10-16 17:27:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 17:27:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-10-16 17:27:27,063 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 8 [2022-10-16 17:27:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:27,063 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-16 17:27:27,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-10-16 17:27:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:27:27,065 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:27,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:27,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:27:27,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1369303285, now seen corresponding path program 1 times [2022-10-16 17:27:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:27,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495235350] [2022-10-16 17:27:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:27,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495235350] [2022-10-16 17:27:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495235350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:27,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:27,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:27:27,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891421729] [2022-10-16 17:27:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:27,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:27:27,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:27,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:27:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:27:27,172 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:27,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:27,200 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-10-16 17:27:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:27:27,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:27:27,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:27,202 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:27:27,202 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 17:27:27,203 INFO L412 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 [2022-10-16 17:27:27,208 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:27,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:27:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 17:27:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-16 17:27:27,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 17:27:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-10-16 17:27:27,223 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 9 [2022-10-16 17:27:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:27,223 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-10-16 17:27:27,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-10-16 17:27:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:27:27,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:27,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:27,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:27:27,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash 662419985, now seen corresponding path program 1 times [2022-10-16 17:27:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:27,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131937759] [2022-10-16 17:27:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:27,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:27,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:27,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131937759] [2022-10-16 17:27:27,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131937759] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:27,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:27,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:27:27,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374394575] [2022-10-16 17:27:27,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:27,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:27:27,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:27,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:27:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:27:27,471 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:27,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:27,559 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-10-16 17:27:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:27:27,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 17:27:27,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:27,561 INFO L225 Difference]: With dead ends: 37 [2022-10-16 17:27:27,562 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:27:27,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:27:27,564 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:27,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:27:27,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:27:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-10-16 17:27:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 17:27:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-10-16 17:27:27,575 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 12 [2022-10-16 17:27:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:27,576 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-10-16 17:27:27,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-10-16 17:27:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:27:27,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:27,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:27,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:27:27,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash 662420047, now seen corresponding path program 1 times [2022-10-16 17:27:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:27,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812372562] [2022-10-16 17:27:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:27,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:27,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812372562] [2022-10-16 17:27:27,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812372562] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:27,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:27,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:27:27,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254814741] [2022-10-16 17:27:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:27,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:27:27,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:27:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:27:27,718 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:27,778 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2022-10-16 17:27:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:27:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 17:27:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:27,780 INFO L225 Difference]: With dead ends: 64 [2022-10-16 17:27:27,780 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 17:27:27,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:27:27,782 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:27,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 75 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:27:27,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 17:27:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-10-16 17:27:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2022-10-16 17:27:27,794 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 12 [2022-10-16 17:27:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:27,795 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2022-10-16 17:27:27,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2022-10-16 17:27:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:27:27,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:27,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:27,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:27:27,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash -230968863, now seen corresponding path program 1 times [2022-10-16 17:27:27,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:27,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79846161] [2022-10-16 17:27:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:27,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:28,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:28,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79846161] [2022-10-16 17:27:28,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79846161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:28,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834271483] [2022-10-16 17:27:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:28,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:28,183 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) [2022-10-16 17:27:28,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:27:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:28,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 17:27:28,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:27:28,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:27:28,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:27:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:28,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:27:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:28,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834271483] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:28,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:27:28,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 7] total 19 [2022-10-16 17:27:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677611427] [2022-10-16 17:27:28,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:28,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:27:28,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:28,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:27:28,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:27:28,539 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:28,651 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2022-10-16 17:27:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:27:28,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 17:27:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:28,654 INFO L225 Difference]: With dead ends: 42 [2022-10-16 17:27:28,654 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 17:27:28,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:27:28,656 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:28,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 102 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:27:28,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 17:27:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-10-16 17:27:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:28,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-10-16 17:27:28,672 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 13 [2022-10-16 17:27:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:28,675 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-10-16 17:27:28,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:27:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-10-16 17:27:28,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:27:28,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:28,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:28,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:27:28,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:28,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:28,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash -939816879, now seen corresponding path program 1 times [2022-10-16 17:27:28,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:28,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709141103] [2022-10-16 17:27:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:29,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:29,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709141103] [2022-10-16 17:27:29,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709141103] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:29,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:29,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:27:29,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621950353] [2022-10-16 17:27:29,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:27:29,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:29,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:27:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:27:29,083 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:29,148 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-16 17:27:29,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:27:29,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 17:27:29,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:29,150 INFO L225 Difference]: With dead ends: 39 [2022-10-16 17:27:29,150 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 17:27:29,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:27:29,152 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:29,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:27:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 17:27:29,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-10-16 17:27:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-10-16 17:27:29,161 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 13 [2022-10-16 17:27:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:29,161 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-10-16 17:27:29,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:27:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-10-16 17:27:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:27:29,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:29,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:29,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:27:29,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:29,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1536156499, now seen corresponding path program 1 times [2022-10-16 17:27:29,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:29,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343107315] [2022-10-16 17:27:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:29,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:27:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:29,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343107315] [2022-10-16 17:27:29,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343107315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:29,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:29,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:27:29,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142764754] [2022-10-16 17:27:29,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:29,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:27:29,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:27:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:27:29,463 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 17:27:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:29,521 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2022-10-16 17:27:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:27:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-10-16 17:27:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:29,525 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:27:29,526 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:27:29,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:27:29,530 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:29,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 67 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:27:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:27:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2022-10-16 17:27:29,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-10-16 17:27:29,553 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 20 [2022-10-16 17:27:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:29,553 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-10-16 17:27:29,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 17:27:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-10-16 17:27:29,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 17:27:29,555 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:29,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:27:29,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:27:29,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash 848688736, now seen corresponding path program 1 times [2022-10-16 17:27:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:29,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981958400] [2022-10-16 17:27:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:29,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 17:27:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:27:29,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:29,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981958400] [2022-10-16 17:27:29,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981958400] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:29,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911835923] [2022-10-16 17:27:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:29,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:29,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:29,943 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) [2022-10-16 17:27:29,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:27:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 17:27:30,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:27:30,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 17:27:30,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:27:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:27:30,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:27:30,104 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 17:27:30,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-16 17:27:30,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:27:30,220 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-16 17:27:30,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-10-16 17:27:30,368 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:27:30,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2022-10-16 17:27:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:30,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:27:32,376 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~pp~0#1.base_7| Int) (v_ArrVal_144 Int)) (or (< 0 (+ v_ArrVal_144 1)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7|) 0 v_ArrVal_144)) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483649))) is different from false [2022-10-16 17:27:32,467 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~pp~0#1.base_8| Int) (v_ArrVal_141 (Array Int Int))) (or (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_8| v_ArrVal_141) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483650) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~pp~0#1.base_8|) 0)))) is different from false [2022-10-16 17:27:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 17:27:32,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911835923] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:27:32,491 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:27:32,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 27 [2022-10-16 17:27:32,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988638159] [2022-10-16 17:27:32,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:27:32,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 17:27:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:32,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 17:27:32,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=549, Unknown=2, NotChecked=98, Total=756 [2022-10-16 17:27:32,494 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 28 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 25 states have internal predecessors, (46), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:27:34,658 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~pp~0#1.base_7| Int) (v_ArrVal_144 Int)) (or (< 0 (+ v_ArrVal_144 1)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7|) 0 v_ArrVal_144)) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483649))) (= |c_ULTIMATE.start_main_~qq~0#1.offset| 0) (<= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483646)) is different from false [2022-10-16 17:27:36,656 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~pp~0#1.base_7| Int) (v_ArrVal_144 Int)) (or (< 0 (+ v_ArrVal_144 1)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_7|) 0 v_ArrVal_144)) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483649))) (= |c_ULTIMATE.start_main_~qq~0#1.offset| 0) (<= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483647)) is different from false [2022-10-16 17:27:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:36,690 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-10-16 17:27:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:27:36,691 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 25 states have internal predecessors, (46), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 23 [2022-10-16 17:27:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:36,692 INFO L225 Difference]: With dead ends: 50 [2022-10-16 17:27:36,693 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:27:36,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=196, Invalid=938, Unknown=4, NotChecked=268, Total=1406 [2022-10-16 17:27:36,695 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:36,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 106 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 149 Invalid, 0 Unknown, 70 Unchecked, 0.1s Time] [2022-10-16 17:27:36,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:27:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2022-10-16 17:27:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-10-16 17:27:36,703 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 23 [2022-10-16 17:27:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:36,704 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-10-16 17:27:36,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 25 states have internal predecessors, (46), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:27:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-10-16 17:27:36,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:27:36,705 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:36,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:27:36,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:27:36,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 17:27:36,920 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 539547106, now seen corresponding path program 1 times [2022-10-16 17:27:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:36,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456821604] [2022-10-16 17:27:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 17:27:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:27:37,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:37,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456821604] [2022-10-16 17:27:37,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456821604] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:37,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860812050] [2022-10-16 17:27:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:37,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:37,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:37,232 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) [2022-10-16 17:27:37,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:27:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:37,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:27:37,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:27:37,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 17:27:37,331 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 17:27:37,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 17:27:37,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:27:37,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:27:37,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:27:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:27:37,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:27:37,532 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 |c_ULTIMATE.start_main_#t~mem8#1|)) (forall ((|v_ULTIMATE.start_main_~pp~0#1.base_10| Int) (v_ArrVal_185 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~pp~0#1.base_10|) 0)) (< 0 (+ (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_10| v_ArrVal_185) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483648))))) is different from false [2022-10-16 17:27:37,600 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:27:37,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-10-16 17:27:37,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2022-10-16 17:27:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-10-16 17:27:37,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860812050] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:27:37,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:27:37,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-16 17:27:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684328526] [2022-10-16 17:27:37,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:27:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:27:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:27:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=278, Unknown=1, NotChecked=34, Total=380 [2022-10-16 17:27:37,775 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 17:27:37,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:37,919 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-10-16 17:27:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:27:37,919 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 24 [2022-10-16 17:27:37,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:37,920 INFO L225 Difference]: With dead ends: 52 [2022-10-16 17:27:37,920 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 17:27:37,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=407, Unknown=1, NotChecked=42, Total=552 [2022-10-16 17:27:37,922 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:37,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 87 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2022-10-16 17:27:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 17:27:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-10-16 17:27:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 17:27:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2022-10-16 17:27:37,931 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 24 [2022-10-16 17:27:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:37,931 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2022-10-16 17:27:37,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 17:27:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-10-16 17:27:37,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 17:27:37,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:37,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:37,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:27:38,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:38,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2009882724, now seen corresponding path program 1 times [2022-10-16 17:27:38,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:38,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46109925] [2022-10-16 17:27:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:38,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 17:27:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 17:27:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46109925] [2022-10-16 17:27:38,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46109925] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007479370] [2022-10-16 17:27:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:38,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:38,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:38,386 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) [2022-10-16 17:27:38,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:27:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:38,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 17:27:38,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:27:38,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:27:38,552 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-16 17:27:38,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-10-16 17:27:38,616 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:27:38,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2022-10-16 17:27:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 17:27:38,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:27:40,696 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_241 Int) (|v_ULTIMATE.start_main_~pp~0#1.base_17| Int)) (or (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_17| (store (select |c_#memory_int| |v_ULTIMATE.start_main_~pp~0#1.base_17|) 0 v_ArrVal_241)) |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) 2147483649) (< 2147483647 v_ArrVal_241))) is different from false [2022-10-16 17:27:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 17:27:40,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007479370] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:40,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:27:40,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7] total 12 [2022-10-16 17:27:40,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693054039] [2022-10-16 17:27:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:40,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:27:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:27:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2022-10-16 17:27:40,741 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 17:27:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:27:40,774 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-10-16 17:27:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:27:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-10-16 17:27:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:27:40,776 INFO L225 Difference]: With dead ends: 50 [2022-10-16 17:27:40,776 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:27:40,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=41, Invalid=118, Unknown=1, NotChecked=22, Total=182 [2022-10-16 17:27:40,778 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:27:40,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 83 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-10-16 17:27:40,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:27:40,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2022-10-16 17:27:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 17:27:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-10-16 17:27:40,787 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 31 [2022-10-16 17:27:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:27:40,787 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-10-16 17:27:40,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 17:27:40,788 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-10-16 17:27:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 17:27:40,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:40,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:40,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:27:41,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:41,003 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:27:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1940678426, now seen corresponding path program 1 times [2022-10-16 17:27:41,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:41,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737884237] [2022-10-16 17:27:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:27:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 17:27:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 17:27:41,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:41,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737884237] [2022-10-16 17:27:41,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737884237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:27:41,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356141552] [2022-10-16 17:27:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:41,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:27:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:41,741 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) [2022-10-16 17:27:41,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:27:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:41,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 17:27:41,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:27:41,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 17:27:41,860 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 17:27:41,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 17:27:42,066 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-10-16 17:27:42,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:27:42,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 17:27:42,269 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 52029 column 44: unknown constant rec_~ip~0.base at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:161) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:171) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:319) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:109) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:134) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:824) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-16 17:27:42,273 INFO L158 Benchmark]: Toolchain (without parser) took 17191.29ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 125.9MB in the beginning and 137.2MB in the end (delta: -11.3MB). Peak memory consumption was 61.0MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,274 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:27:42,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.50ms. Allocated memory is still 151.0MB. Free memory was 125.7MB in the beginning and 116.1MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.17ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 114.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,275 INFO L158 Benchmark]: Boogie Preprocessor took 25.73ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 113.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,275 INFO L158 Benchmark]: RCFGBuilder took 526.04ms. Allocated memory is still 151.0MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,276 INFO L158 Benchmark]: TraceAbstraction took 16313.05ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 101.2MB in the beginning and 137.2MB in the end (delta: -36.0MB). Peak memory consumption was 36.8MB. Max. memory is 8.0GB. [2022-10-16 17:27:42,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.50ms. Allocated memory is still 151.0MB. Free memory was 125.7MB in the beginning and 116.1MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.17ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 114.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.73ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 113.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 526.04ms. Allocated memory is still 151.0MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 16313.05ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 101.2MB in the beginning and 137.2MB in the end (delta: -36.0MB). Peak memory consumption was 36.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 52029 column 44: unknown constant rec_~ip~0.base de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 52029 column 44: unknown constant rec_~ip~0.base: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-16 17:27:42,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 1 Received shutdown request...