/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-memory-alloca/Avery-2006FLOPS-Tabel1_true-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:45:11,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:45:11,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:45:11,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:45:11,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:45:11,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:45:11,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:45:11,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:45:11,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:45:11,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:45:11,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:45:11,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:45:11,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:45:11,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:45:11,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:45:11,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:45:11,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:45:11,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:45:11,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:45:11,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:45:11,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:45:11,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:45:11,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:45:11,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:45:11,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 22:45:11,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:45:11,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:45:11,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:45:11,385 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 [2022-10-15 22:45:11,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:45:11,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:45:11,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:45:11,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:45:11,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:45:11,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:45:11,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:45:11,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:45:11,450 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:45:11,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:45:11,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:45:11,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:45:11,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:45:11,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:45:11,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:45:11,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:45:11,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:45:11,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:45:11,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:45:11,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:45:11,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:45:11,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:45:11,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:45:11,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:45:11,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:45:11,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:45:11,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:45:11,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:45:11,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:45:11,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:45:11,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:45:11,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:45:11,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:45:11,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:45:11,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:45:11,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:45:11,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:45:11,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:45:11,875 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:45:11,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Avery-2006FLOPS-Tabel1_true-alloca.i [2022-10-15 22:45:11,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb2171f1/ff483f2b739d40c9b79cb46c2d96d8ca/FLAG8e403eb9e [2022-10-15 22:45:12,716 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:45:12,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Avery-2006FLOPS-Tabel1_true-alloca.i [2022-10-15 22:45:12,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb2171f1/ff483f2b739d40c9b79cb46c2d96d8ca/FLAG8e403eb9e [2022-10-15 22:45:12,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb2171f1/ff483f2b739d40c9b79cb46c2d96d8ca [2022-10-15 22:45:13,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:45:13,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:45:13,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:45:13,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:45:13,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:45:13,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49595352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13, skipping insertion in model container [2022-10-15 22:45:13,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:45:13,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:45:13,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:45:13,389 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:45:13,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:45:13,469 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:45:13,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13 WrapperNode [2022-10-15 22:45:13,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:45:13,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:45:13,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:45:13,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:45:13,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,550 INFO L138 Inliner]: procedures = 111, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2022-10-15 22:45:13,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:45:13,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:45:13,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:45:13,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:45:13,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:45:13,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:45:13,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:45:13,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:45:13,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (1/1) ... [2022-10-15 22:45:13,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:45:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:13,629 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) [2022-10-15 22:45:13,648 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 [2022-10-15 22:45:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 22:45:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 22:45:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 22:45:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 22:45:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:45:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:45:13,810 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:45:13,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:45:14,117 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:45:14,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:45:14,138 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 22:45:14,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:45:14 BoogieIcfgContainer [2022-10-15 22:45:14,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:45:14,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:45:14,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:45:14,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:45:14,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:45:13" (1/3) ... [2022-10-15 22:45:14,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f479281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:45:14, skipping insertion in model container [2022-10-15 22:45:14,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:45:13" (2/3) ... [2022-10-15 22:45:14,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f479281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:45:14, skipping insertion in model container [2022-10-15 22:45:14,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:45:14" (3/3) ... [2022-10-15 22:45:14,163 INFO L112 eAbstractionObserver]: Analyzing ICFG Avery-2006FLOPS-Tabel1_true-alloca.i [2022-10-15 22:45:14,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:45:14,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-15 22:45:14,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:45:14,331 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;@710dcf4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:45:14,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-15 22:45:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 22:45:14,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:14,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:14,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:14,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1805091560, now seen corresponding path program 1 times [2022-10-15 22:45:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:14,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973423048] [2022-10-15 22:45:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:14,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:14,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973423048] [2022-10-15 22:45:14,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973423048] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:14,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:14,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:45:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783555327] [2022-10-15 22:45:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:14,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:45:14,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:15,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:45:15,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:45:15,007 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:15,081 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-10-15 22:45:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:45:15,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 22:45:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:15,098 INFO L225 Difference]: With dead ends: 55 [2022-10-15 22:45:15,099 INFO L226 Difference]: Without dead ends: 24 [2022-10-15 22:45:15,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:45:15,111 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:15,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:45:15,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-15 22:45:15,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-10-15 22:45:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-10-15 22:45:15,156 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 7 [2022-10-15 22:45:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:15,157 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-10-15 22:45:15,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-10-15 22:45:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 22:45:15,158 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:15,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:45:15,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1806938602, now seen corresponding path program 1 times [2022-10-15 22:45:15,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:15,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872835166] [2022-10-15 22:45:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:15,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:16,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:16,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872835166] [2022-10-15 22:45:16,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872835166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:16,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:16,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:45:16,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600865250] [2022-10-15 22:45:16,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:16,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:45:16,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:45:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:45:16,931 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:16,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:16,988 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-10-15 22:45:16,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:45:16,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 22:45:16,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:16,990 INFO L225 Difference]: With dead ends: 36 [2022-10-15 22:45:16,991 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 22:45:16,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:45:16,993 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:16,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 38 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:45:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 22:45:16,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2022-10-15 22:45:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-10-15 22:45:17,000 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 7 [2022-10-15 22:45:17,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:17,001 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-10-15 22:45:17,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-10-15 22:45:17,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 22:45:17,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:17,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:17,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:45:17,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash 180521871, now seen corresponding path program 1 times [2022-10-15 22:45:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:17,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114641285] [2022-10-15 22:45:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:17,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:17,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114641285] [2022-10-15 22:45:17,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114641285] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:17,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:17,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:45:17,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564931093] [2022-10-15 22:45:17,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:17,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:45:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:17,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:45:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:45:17,158 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:17,187 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-10-15 22:45:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:45:17,188 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 22:45:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:17,189 INFO L225 Difference]: With dead ends: 27 [2022-10-15 22:45:17,189 INFO L226 Difference]: Without dead ends: 26 [2022-10-15 22:45:17,190 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 [2022-10-15 22:45:17,191 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:17,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:45:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-15 22:45:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-15 22:45:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-10-15 22:45:17,197 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2022-10-15 22:45:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:17,198 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-15 22:45:17,198 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-10-15 22:45:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 22:45:17,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:17,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:17,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:45:17,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:17,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1301164187, now seen corresponding path program 1 times [2022-10-15 22:45:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:17,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411034314] [2022-10-15 22:45:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:17,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:17,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411034314] [2022-10-15 22:45:17,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411034314] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:17,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:17,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:45:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781585181] [2022-10-15 22:45:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:17,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:45:17,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:45:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:45:17,324 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:17,402 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-15 22:45:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:45:17,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 22:45:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:17,404 INFO L225 Difference]: With dead ends: 32 [2022-10-15 22:45:17,404 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 22:45:17,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:45:17,406 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:17,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 56 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:45:17,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 22:45:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-15 22:45:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-10-15 22:45:17,412 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2022-10-15 22:45:17,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:17,412 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-10-15 22:45:17,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-10-15 22:45:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 22:45:17,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:17,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:17,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:45:17,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1301210764, now seen corresponding path program 1 times [2022-10-15 22:45:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:17,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816499111] [2022-10-15 22:45:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:18,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:18,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816499111] [2022-10-15 22:45:18,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816499111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:18,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:18,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:45:18,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732607380] [2022-10-15 22:45:18,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:18,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:45:18,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:18,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:45:18,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:45:18,005 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:18,058 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2022-10-15 22:45:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:45:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 22:45:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:18,060 INFO L225 Difference]: With dead ends: 43 [2022-10-15 22:45:18,060 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 22:45:18,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:45:18,062 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:18,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:45:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 22:45:18,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2022-10-15 22:45:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-10-15 22:45:18,068 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 9 [2022-10-15 22:45:18,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:18,069 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-10-15 22:45:18,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-10-15 22:45:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 22:45:18,070 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:18,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:18,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:45:18,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:18,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1681384210, now seen corresponding path program 1 times [2022-10-15 22:45:18,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:18,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023737210] [2022-10-15 22:45:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:18,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:18,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:18,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023737210] [2022-10-15 22:45:18,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023737210] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:18,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:45:18,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 22:45:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421219151] [2022-10-15 22:45:18,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 22:45:18,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:18,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 22:45:18,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:45:18,791 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:18,981 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2022-10-15 22:45:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 22:45:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 22:45:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:18,983 INFO L225 Difference]: With dead ends: 44 [2022-10-15 22:45:18,983 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 22:45:18,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:45:18,985 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:18,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 50 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:45:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 22:45:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-15 22:45:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-10-15 22:45:18,995 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2022-10-15 22:45:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:18,996 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-10-15 22:45:18,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-10-15 22:45:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 22:45:18,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:18,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:18,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:45:19,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2021837311, now seen corresponding path program 1 times [2022-10-15 22:45:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:19,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151395116] [2022-10-15 22:45:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:19,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:19,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151395116] [2022-10-15 22:45:19,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151395116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:19,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111237542] [2022-10-15 22:45:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:19,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:19,298 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) [2022-10-15 22:45:19,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 22:45:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:19,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 22:45:19,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:19,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 202 treesize of output 198 [2022-10-15 22:45:19,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-10-15 22:45:19,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 22:45:19,655 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 [2022-10-15 22:45:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:19,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:45:19,691 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_480 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483649)) is different from false [2022-10-15 22:45:19,713 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 22:45:19,714 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 18 treesize of output 19 [2022-10-15 22:45:19,719 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 32 treesize of output 24 [2022-10-15 22:45:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:19,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111237542] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:45:19,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:45:19,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-15 22:45:19,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325842007] [2022-10-15 22:45:19,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:45:19,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 22:45:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:19,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 22:45:19,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=65, Unknown=1, NotChecked=16, Total=110 [2022-10-15 22:45:19,757 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:19,829 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-10-15 22:45:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:45:19,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 22:45:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:19,831 INFO L225 Difference]: With dead ends: 32 [2022-10-15 22:45:19,831 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 22:45:19,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=75, Unknown=1, NotChecked=18, Total=132 [2022-10-15 22:45:19,833 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:19,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 74 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-10-15 22:45:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 22:45:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-15 22:45:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-15 22:45:19,839 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 13 [2022-10-15 22:45:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:19,839 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-15 22:45:19,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-15 22:45:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 22:45:19,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:19,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:19,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 22:45:20,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:20,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:20,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1660436253, now seen corresponding path program 1 times [2022-10-15 22:45:20,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:20,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622401322] [2022-10-15 22:45:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:20,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:20,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622401322] [2022-10-15 22:45:20,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622401322] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:20,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937558353] [2022-10-15 22:45:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:20,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:20,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:20,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:45:20,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 22:45:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:20,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-15 22:45:20,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:21,128 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-15 22:45:21,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 104 treesize of output 304 [2022-10-15 22:45:21,160 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-15 22:45:21,187 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:21,210 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:21,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5 [2022-10-15 22:45:21,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5 [2022-10-15 22:45:21,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-10-15 22:45:22,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:22,879 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-15 22:45:22,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 89 [2022-10-15 22:45:23,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:23,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:23,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:23,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:23,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 82 [2022-10-15 22:45:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:23,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:23,239 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-15 22:45:23,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 126 [2022-10-15 22:45:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:23,414 INFO L356 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-10-15 22:45:23,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 292 treesize of output 228 [2022-10-15 22:45:23,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 116 treesize of output 114 [2022-10-15 22:45:23,615 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-15 22:45:23,615 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 18 treesize of output 24 [2022-10-15 22:45:23,694 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 0 case distinctions, treesize of input 32 treesize of output 20 [2022-10-15 22:45:23,802 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 22:45:23,802 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 48 treesize of output 40 [2022-10-15 22:45:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:23,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:45:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:26,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937558353] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:45:26,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:45:26,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2022-10-15 22:45:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453956880] [2022-10-15 22:45:26,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:45:26,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-15 22:45:26,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-15 22:45:26,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=203, Unknown=7, NotChecked=0, Total=272 [2022-10-15 22:45:26,296 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 17 states, 16 states have (on average 2.625) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:26,612 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-10-15 22:45:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:45:26,613 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.625) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 22:45:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:26,614 INFO L225 Difference]: With dead ends: 52 [2022-10-15 22:45:26,614 INFO L226 Difference]: Without dead ends: 51 [2022-10-15 22:45:26,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=367, Unknown=7, NotChecked=0, Total=506 [2022-10-15 22:45:26,616 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 44 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:26,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 111 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 70 Unchecked, 0.1s Time] [2022-10-15 22:45:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-15 22:45:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2022-10-15 22:45:26,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.25) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-10-15 22:45:26,625 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2022-10-15 22:45:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:26,625 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-10-15 22:45:26,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.625) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-15 22:45:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 22:45:26,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:26,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:26,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 22:45:26,841 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 [2022-10-15 22:45:26,842 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:26,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 66083770, now seen corresponding path program 1 times [2022-10-15 22:45:26,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:26,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699024798] [2022-10-15 22:45:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:26,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:27,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699024798] [2022-10-15 22:45:27,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699024798] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:27,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933199672] [2022-10-15 22:45:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:27,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:27,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:27,314 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) [2022-10-15 22:45:27,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 22:45:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:27,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-15 22:45:27,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:27,490 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 [2022-10-15 22:45:27,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 22:45:27,599 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 46 treesize of output 38 [2022-10-15 22:45:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:27,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:45:31,834 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 86 treesize of output 78 [2022-10-15 22:45:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:31,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933199672] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:31,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-15 22:45:31,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 14 [2022-10-15 22:45:31,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339929129] [2022-10-15 22:45:31,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:31,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:45:31,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:31,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:45:31,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=158, Unknown=2, NotChecked=0, Total=210 [2022-10-15 22:45:31,847 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:31,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:31,868 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-10-15 22:45:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:45:31,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 22:45:31,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:31,869 INFO L225 Difference]: With dead ends: 41 [2022-10-15 22:45:31,869 INFO L226 Difference]: Without dead ends: 40 [2022-10-15 22:45:31,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=50, Invalid=158, Unknown=2, NotChecked=0, Total=210 [2022-10-15 22:45:31,871 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:31,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 43 Unchecked, 0.0s Time] [2022-10-15 22:45:31,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-15 22:45:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-15 22:45:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-10-15 22:45:31,879 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 16 [2022-10-15 22:45:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:31,880 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-10-15 22:45:31,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-10-15 22:45:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 22:45:31,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:31,881 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:31,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 22:45:32,095 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 [2022-10-15 22:45:32,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2003836948, now seen corresponding path program 1 times [2022-10-15 22:45:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:32,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858721076] [2022-10-15 22:45:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:32,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:32,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858721076] [2022-10-15 22:45:32,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858721076] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:32,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175573405] [2022-10-15 22:45:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:32,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:32,544 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) [2022-10-15 22:45:32,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 22:45:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:32,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-15 22:45:32,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:32,715 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 [2022-10-15 22:45:32,790 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 28 treesize of output 20 [2022-10-15 22:45:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:32,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 22:45:32,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175573405] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:32,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 22:45:32,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-10-15 22:45:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760780413] [2022-10-15 22:45:32,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 22:45:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 22:45:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-10-15 22:45:32,813 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:32,890 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-10-15 22:45:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 22:45:32,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-15 22:45:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:32,891 INFO L225 Difference]: With dead ends: 40 [2022-10-15 22:45:32,891 INFO L226 Difference]: Without dead ends: 39 [2022-10-15 22:45:32,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:45:32,893 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:32,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 33 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:45:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-15 22:45:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-15 22:45:32,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-10-15 22:45:32,900 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2022-10-15 22:45:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:32,901 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-10-15 22:45:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-10-15 22:45:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 22:45:32,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:32,902 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:32,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 22:45:33,115 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 [2022-10-15 22:45:33,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1989403325, now seen corresponding path program 1 times [2022-10-15 22:45:33,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:33,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110479663] [2022-10-15 22:45:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:33,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110479663] [2022-10-15 22:45:33,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110479663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:33,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156423930] [2022-10-15 22:45:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:33,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:33,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:33,913 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) [2022-10-15 22:45:33,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 22:45:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:34,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-15 22:45:34,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:34,329 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-15 22:45:34,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 218 treesize of output 356 [2022-10-15 22:45:34,354 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-15 22:45:34,378 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:34,399 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:34,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 treesize of output 14 [2022-10-15 22:45:34,588 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:34,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 9 [2022-10-15 22:45:34,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:34,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-10-15 22:45:35,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:35,269 INFO L356 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2022-10-15 22:45:35,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 204 treesize of output 133 [2022-10-15 22:45:35,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:35,323 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:35,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:35,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 414 treesize of output 406 [2022-10-15 22:45:35,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 22:45:35,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-10-15 22:45:35,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:35,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2022-10-15 22:45:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:35,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 22:45:35,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156423930] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:45:35,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 22:45:35,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 22:45:35,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360483853] [2022-10-15 22:45:35,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:45:35,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:45:35,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:35,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:45:35,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:45:35,545 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:35,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:35,645 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2022-10-15 22:45:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 22:45:35,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-15 22:45:35,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:35,646 INFO L225 Difference]: With dead ends: 51 [2022-10-15 22:45:35,646 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 22:45:35,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-15 22:45:35,647 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:35,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:45:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 22:45:35,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-10-15 22:45:35,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-10-15 22:45:35,657 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 18 [2022-10-15 22:45:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:35,658 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-10-15 22:45:35,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-10-15 22:45:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 22:45:35,659 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:35,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:35,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 22:45:35,875 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 [2022-10-15 22:45:35,876 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash 60805257, now seen corresponding path program 1 times [2022-10-15 22:45:35,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:35,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440368740] [2022-10-15 22:45:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:35,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 22:45:36,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:36,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440368740] [2022-10-15 22:45:36,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440368740] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:36,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664706078] [2022-10-15 22:45:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:36,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:36,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:36,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:45:36,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 22:45:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:37,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-15 22:45:37,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:37,137 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-10-15 22:45:37,214 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-10-15 22:45:37,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 35 [2022-10-15 22:45:37,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-10-15 22:45:37,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 22:45:37,489 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 [2022-10-15 22:45:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:37,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:45:37,545 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1165 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_1165) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483647)) is different from false [2022-10-15 22:45:37,562 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1163 Int) (v_ArrVal_1165 (Array Int Int))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1163)) |c_ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_1165) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483647) (not (<= v_ArrVal_1163 (+ |c_ULTIMATE.start_subxy_#t~post18#1| 1))))) is different from false [2022-10-15 22:45:37,591 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1163 Int) (v_ArrVal_1165 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1163)) |c_ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_1165) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483647) (< (+ (select .cse0 |c_ULTIMATE.start_subxy_~i~0#1.offset|) 1) v_ArrVal_1163)))) is different from false [2022-10-15 22:45:37,829 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1161 Int) (v_ArrVal_1163 Int) (|ULTIMATE.start_subxy_~z~0#1.base| Int) (v_ArrVal_1165 (Array Int Int)) (v_ArrVal_1159 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1159)))) (let ((.cse3 (select .cse4 |ULTIMATE.start_subxy_~z~0#1.base|))) (let ((.cse1 (store .cse4 |ULTIMATE.start_subxy_~z~0#1.base| (store .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1161)))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base|))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_subxy_~i~0#1.offset|))) (or (< 0 .cse0) (< (select (select (store (store .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1163)) |ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_1165) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483647) (not (<= |c_ULTIMATE.start_subxy_#t~post12#1| (+ v_ArrVal_1159 1))) (< v_ArrVal_1161 (+ (select .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset|) 1)) (< (+ .cse0 1) v_ArrVal_1163)))))))) is different from false [2022-10-15 22:45:37,914 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1161 Int) (v_ArrVal_1163 Int) (|ULTIMATE.start_subxy_~z~0#1.base| Int) (v_ArrVal_1165 (Array Int Int)) (v_ArrVal_1159 Int)) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store .cse4 |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1159)))) (let ((.cse3 (select .cse5 |ULTIMATE.start_subxy_~z~0#1.base|))) (let ((.cse1 (store .cse5 |ULTIMATE.start_subxy_~z~0#1.base| (store .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1161)))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base|))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_subxy_~i~0#1.offset|))) (or (< 0 .cse0) (< (select (select (store (store .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1163)) |ULTIMATE.start_subxy_~z~0#1.base| v_ArrVal_1165) |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|) 2147483647) (< v_ArrVal_1161 (+ (select .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset|) 1)) (< (+ .cse0 1) v_ArrVal_1163) (< (+ v_ArrVal_1159 1) (select .cse4 |c_ULTIMATE.start_subxy_~i~0#1.offset|)))))))))) (not (< 0 |c_ULTIMATE.start_subxy_#t~mem10#1|))) is different from false [2022-10-15 22:45:37,958 INFO L356 Elim1Store]: treesize reduction 36, result has 32.1 percent of original size [2022-10-15 22:45:37,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 164 treesize of output 112 [2022-10-15 22:45:37,975 INFO L356 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-10-15 22:45:37,976 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 110 treesize of output 82 [2022-10-15 22:45:37,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-10-15 22:45:38,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664706078] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:45:38,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:45:38,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 12] total 26 [2022-10-15 22:45:38,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064362] [2022-10-15 22:45:38,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:45:38,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-15 22:45:38,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-15 22:45:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=385, Unknown=7, NotChecked=220, Total=702 [2022-10-15 22:45:38,046 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:38,953 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-10-15 22:45:38,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 22:45:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 22:45:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:38,955 INFO L225 Difference]: With dead ends: 55 [2022-10-15 22:45:38,955 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 22:45:38,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=254, Invalid=1165, Unknown=7, NotChecked=380, Total=1806 [2022-10-15 22:45:38,957 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:38,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 63 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 105 Invalid, 0 Unknown, 188 Unchecked, 0.1s Time] [2022-10-15 22:45:38,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 22:45:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 41. [2022-10-15 22:45:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-10-15 22:45:38,964 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 21 [2022-10-15 22:45:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:38,965 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-10-15 22:45:38,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-10-15 22:45:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 22:45:38,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:38,966 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:45:39,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 22:45:39,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:39,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1026711098, now seen corresponding path program 1 times [2022-10-15 22:45:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422527326] [2022-10-15 22:45:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:39,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:39,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422527326] [2022-10-15 22:45:39,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422527326] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:39,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504168147] [2022-10-15 22:45:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:39,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:39,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:45:39,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 22:45:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:39,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-15 22:45:39,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:40,215 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-15 22:45:40,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 104 treesize of output 304 [2022-10-15 22:45:40,235 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-15 22:45:40,256 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:40,273 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:40,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5 [2022-10-15 22:45:40,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5 [2022-10-15 22:45:40,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-10-15 22:45:41,730 INFO L356 Elim1Store]: treesize reduction 312, result has 21.6 percent of original size [2022-10-15 22:45:41,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 473 treesize of output 629 [2022-10-15 22:45:41,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 331 treesize of output 329 [2022-10-15 22:45:41,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:42,993 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-15 22:45:42,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 58 treesize of output 11 [2022-10-15 22:45:43,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:43,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:43,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:43,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 16 [2022-10-15 22:45:43,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:43,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:43,205 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:43,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:43,442 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-15 22:45:43,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 31 [2022-10-15 22:45:43,483 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-15 22:45:43,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-15 22:45:43,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:43,513 INFO L356 Elim1Store]: treesize reduction 45, result has 10.0 percent of original size [2022-10-15 22:45:43,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 36 [2022-10-15 22:45:43,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:43,750 INFO L356 Elim1Store]: treesize reduction 326, result has 9.7 percent of original size [2022-10-15 22:45:43,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 277 treesize of output 314 [2022-10-15 22:45:44,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,245 INFO L356 Elim1Store]: treesize reduction 88, result has 5.4 percent of original size [2022-10-15 22:45:44,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 26 [2022-10-15 22:45:44,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,476 INFO L356 Elim1Store]: treesize reduction 132, result has 2.2 percent of original size [2022-10-15 22:45:44,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 149 treesize of output 139 [2022-10-15 22:45:44,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,566 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 0 case distinctions, treesize of input 36 treesize of output 11 [2022-10-15 22:45:44,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:45:44,586 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:44,742 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-10-15 22:45:44,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 38 [2022-10-15 22:45:44,864 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-10-15 22:45:44,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 38 [2022-10-15 22:45:45,048 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-15 22:45:45,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-10-15 22:45:45,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-10-15 22:45:45,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 22:45:45,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2022-10-15 22:45:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:45,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:45:45,196 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1316) |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset|) 2147483648))) is different from false [2022-10-15 22:45:45,217 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array Int Int)) (v_ArrVal_1314 Int)) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_subxy_~z~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1314)) |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1316) |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset|) 2147483648)) (not (<= |c_ULTIMATE.start_subxy_#t~post20#1| (+ v_ArrVal_1314 1))))) is different from false [2022-10-15 22:45:45,244 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array Int Int)) (v_ArrVal_1313 (Array Int Int)) (v_ArrVal_1314 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1313))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_subxy_~z~0#1.base|))) (or (< 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_subxy_~z~0#1.base| (store .cse1 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1314)) |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1316) |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset|) 2147483648)) (< (+ v_ArrVal_1314 1) (select .cse1 |c_ULTIMATE.start_subxy_~z~0#1.offset|)))))) is different from false [2022-10-15 22:45:45,519 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1309 Int) (v_ArrVal_1316 (Array Int Int)) (v_ArrVal_1313 (Array Int Int)) (v_ArrVal_1311 Int) (v_ArrVal_1314 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1309)))) (let ((.cse0 (select .cse4 |c_ULTIMATE.start_subxy_~z~0#1.base|))) (let ((.cse1 (store .cse4 |c_ULTIMATE.start_subxy_~z~0#1.base| (store .cse0 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1311)))) (let ((.cse2 (store .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1313))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_subxy_~z~0#1.base|))) (or (< v_ArrVal_1311 (+ (select .cse0 |c_ULTIMATE.start_subxy_~z~0#1.offset|) 1)) (< 0 (select (select .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|)) (< 0 (+ 2147483648 (select (select (store (store .cse2 |c_ULTIMATE.start_subxy_~z~0#1.base| (store .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1314)) |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1316) |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset|))) (not (<= |c_ULTIMATE.start_subxy_#t~post12#1| (+ v_ArrVal_1309 1))) (< (+ v_ArrVal_1314 1) (select .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset|))))))))) is different from false [2022-10-15 22:45:45,596 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1309 Int) (v_ArrVal_1316 (Array Int Int)) (v_ArrVal_1313 (Array Int Int)) (v_ArrVal_1311 Int) (v_ArrVal_1314 Int)) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base|))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_subxy_~i~0#1.base| (store .cse4 |c_ULTIMATE.start_subxy_~i~0#1.offset| v_ArrVal_1309)))) (let ((.cse0 (select .cse5 |c_ULTIMATE.start_subxy_~z~0#1.base|))) (let ((.cse1 (store .cse5 |c_ULTIMATE.start_subxy_~z~0#1.base| (store .cse0 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1311)))) (let ((.cse2 (store .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1313))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_subxy_~z~0#1.base|))) (or (< v_ArrVal_1311 (+ (select .cse0 |c_ULTIMATE.start_subxy_~z~0#1.offset|) 1)) (< 0 (select (select .cse1 |c_ULTIMATE.start_subxy_~i~0#1.base|) |c_ULTIMATE.start_subxy_~i~0#1.offset|)) (< 0 (+ 2147483648 (select (select (store (store .cse2 |c_ULTIMATE.start_subxy_~z~0#1.base| (store .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset| v_ArrVal_1314)) |c_ULTIMATE.start_subxy_~i~0#1.base| v_ArrVal_1316) |c_ULTIMATE.start_subxy_~z~0#1.base|) |c_ULTIMATE.start_subxy_~z~0#1.offset|))) (< (+ v_ArrVal_1309 1) (select .cse4 |c_ULTIMATE.start_subxy_~i~0#1.offset|)) (< (+ v_ArrVal_1314 1) (select .cse3 |c_ULTIMATE.start_subxy_~z~0#1.offset|)))))))))) (not (< 0 |c_ULTIMATE.start_subxy_#t~mem10#1|))) is different from false [2022-10-15 22:45:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2022-10-15 22:45:45,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504168147] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:45:45,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:45:45,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 26 [2022-10-15 22:45:45,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125109798] [2022-10-15 22:45:45,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:45:45,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-15 22:45:45,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:45:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-15 22:45:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=376, Unknown=8, NotChecked=220, Total=702 [2022-10-15 22:45:45,796 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 27 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:46,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:45:46,612 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-10-15 22:45:46,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 22:45:46,612 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 22:45:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:45:46,613 INFO L225 Difference]: With dead ends: 48 [2022-10-15 22:45:46,614 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 22:45:46,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=247, Invalid=887, Unknown=8, NotChecked=340, Total=1482 [2022-10-15 22:45:46,616 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 57 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:45:46,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 59 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 153 Unchecked, 0.2s Time] [2022-10-15 22:45:46,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 22:45:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-15 22:45:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2022-10-15 22:45:46,624 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 24 [2022-10-15 22:45:46,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:45:46,624 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2022-10-15 22:45:46,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6153846153846154) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:45:46,625 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2022-10-15 22:45:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 22:45:46,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:45:46,626 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1] [2022-10-15 22:45:46,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-15 22:45:46,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:46,840 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:45:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:45:46,841 INFO L85 PathProgramCache]: Analyzing trace with hash -121877039, now seen corresponding path program 2 times [2022-10-15 22:45:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:45:46,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766158767] [2022-10-15 22:45:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:45:46,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:45:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:45:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:45:47,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:45:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766158767] [2022-10-15 22:45:47,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766158767] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:45:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479096616] [2022-10-15 22:45:47,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:45:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:45:47,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:45:47,793 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:45:47,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 22:45:47,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:45:47,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:45:47,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-15 22:45:47,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:45:48,182 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-15 22:45:48,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 218 treesize of output 356 [2022-10-15 22:45:48,211 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-15 22:45:48,230 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:48,248 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-15 22:45:48,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 treesize of output 14 [2022-10-15 22:45:48,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 9 [2022-10-15 22:45:48,436 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 22:45:48,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:48,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-10-15 22:45:51,088 INFO L356 Elim1Store]: treesize reduction 834, result has 12.9 percent of original size [2022-10-15 22:45:51,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 735 treesize of output 1350 [2022-10-15 22:45:52,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:53,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:57,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:45:58,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-10-15 22:46:01,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:01,351 INFO L356 Elim1Store]: treesize reduction 110, result has 0.9 percent of original size [2022-10-15 22:46:01,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 12 case distinctions, treesize of input 314 treesize of output 874 [2022-10-15 22:46:02,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:02,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:02,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:02,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 22:46:02,271 INFO L356 Elim1Store]: treesize reduction 231, result has 0.4 percent of original size [2022-10-15 22:46:02,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 17 case distinctions, treesize of input 211 treesize of output 385 [2022-10-15 22:46:05,372 INFO L356 Elim1Store]: treesize reduction 416, result has 13.0 percent of original size [2022-10-15 22:46:05,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 23 case distinctions, treesize of input 900989849 treesize of output 898598158