/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/array-memsafety/openbsd_cstrstr-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:28:16,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:28:16,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:28:16,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:28:16,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:28:16,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:28:16,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:28:16,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:28:16,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:28:16,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:28:16,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:28:16,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:28:16,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:28:16,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:28:16,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:28:16,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:28:16,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:28:16,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:28:16,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:28:16,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:28:16,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:28:16,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:28:16,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:28:16,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:28:16,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:28:16,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:28:16,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:28:16,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:28:16,949 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 20:28:17,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:28:17,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:28:17,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:28:17,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:28:17,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:28:17,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:28:17,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:28:17,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:28:17,009 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:28:17,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:28:17,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:28:17,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:28:17,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:28:17,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:28:17,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:28:17,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:28:17,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:28:17,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:28:17,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:28:17,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:28:17,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:28:17,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:28:17,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:28:17,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:28:17,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:28:17,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:28:17,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:17,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:28:17,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:28:17,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:28:17,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:28:17,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:28:17,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:28:17,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:28:17,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:28:17,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:28:17,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:28:17,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:28:17,516 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:28:17,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2022-10-15 20:28:17,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b66f4e6/a9952e9d498f446abe2c15a209c9e89e/FLAG0d6e41f66 [2022-10-15 20:28:18,376 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:28:18,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrstr-alloca-2.i [2022-10-15 20:28:18,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b66f4e6/a9952e9d498f446abe2c15a209c9e89e/FLAG0d6e41f66 [2022-10-15 20:28:18,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b66f4e6/a9952e9d498f446abe2c15a209c9e89e [2022-10-15 20:28:18,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:28:18,674 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:28:18,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:18,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:28:18,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:28:18,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:18" (1/1) ... [2022-10-15 20:28:18,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6615b821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:18, skipping insertion in model container [2022-10-15 20:28:18,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:18" (1/1) ... [2022-10-15 20:28:18,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:28:18,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:28:19,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:19,424 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:28:19,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:19,538 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:28:19,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19 WrapperNode [2022-10-15 20:28:19,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:19,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:19,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:28:19,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:28:19,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,604 INFO L138 Inliner]: procedures = 119, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2022-10-15 20:28:19,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:19,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:28:19,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:28:19,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:28:19,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:28:19,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:28:19,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:28:19,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:28:19,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (1/1) ... [2022-10-15 20:28:19,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:19,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:19,699 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 20:28:19,709 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 20:28:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:28:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:28:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:28:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:28:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:28:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:28:19,932 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:28:19,935 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:28:20,517 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:28:20,536 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:28:20,537 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-15 20:28:20,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:20 BoogieIcfgContainer [2022-10-15 20:28:20,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:28:20,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:28:20,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:28:20,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:28:20,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:28:18" (1/3) ... [2022-10-15 20:28:20,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495ccaea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:20, skipping insertion in model container [2022-10-15 20:28:20,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:19" (2/3) ... [2022-10-15 20:28:20,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495ccaea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:20, skipping insertion in model container [2022-10-15 20:28:20,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:20" (3/3) ... [2022-10-15 20:28:20,570 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca-2.i [2022-10-15 20:28:20,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:28:20,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-15 20:28:20,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:28:20,709 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;@5522f501, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:28:20,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-15 20:28:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 55 states have internal predecessors, (74), 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 20:28:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 20:28:20,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:20,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:20,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash 121327154, now seen corresponding path program 1 times [2022-10-15 20:28:20,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:20,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314092849] [2022-10-15 20:28:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,270 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 20:28:21,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:21,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314092849] [2022-10-15 20:28:21,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314092849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:21,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:21,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:28:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595316308] [2022-10-15 20:28:21,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:21,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:21,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:21,348 INFO L87 Difference]: Start difference. First operand has 56 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 55 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 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 20:28:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:21,459 INFO L93 Difference]: Finished difference Result 148 states and 200 transitions. [2022-10-15 20:28:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:21,464 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 20:28:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:21,476 INFO L225 Difference]: With dead ends: 148 [2022-10-15 20:28:21,476 INFO L226 Difference]: Without dead ends: 45 [2022-10-15 20:28:21,481 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 20:28:21,487 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 56 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:21,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 179 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-15 20:28:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2022-10-15 20:28:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 29 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 20:28:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-10-15 20:28:21,536 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 8 [2022-10-15 20:28:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-10-15 20:28:21,537 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 20:28:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-10-15 20:28:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:28:21,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:21,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:21,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:28:21,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash -533876962, now seen corresponding path program 1 times [2022-10-15 20:28:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:21,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721777795] [2022-10-15 20:28:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,660 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 20:28:21,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:21,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721777795] [2022-10-15 20:28:21,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721777795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:21,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:21,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:28:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266631768] [2022-10-15 20:28:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:21,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:21,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:21,666 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.25) 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 20:28:21,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:21,711 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-10-15 20:28:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) 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 20:28:21,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:21,716 INFO L225 Difference]: With dead ends: 44 [2022-10-15 20:28:21,716 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 20:28:21,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:21,719 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:21,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 20:28:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-15 20:28:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 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 20:28:21,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-10-15 20:28:21,735 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 9 [2022-10-15 20:28:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:21,735 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-15 20:28:21,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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 20:28:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-10-15 20:28:21,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 20:28:21,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:21,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:21,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:28:21,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:21,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1069581550, now seen corresponding path program 1 times [2022-10-15 20:28:21,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:21,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367365753] [2022-10-15 20:28:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:21,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367365753] [2022-10-15 20:28:21,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367365753] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:21,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404665119] [2022-10-15 20:28:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:21,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:21,995 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 20:28:22,001 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 20:28:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:22,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:22,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:22,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:22,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404665119] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:22,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:22,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-15 20:28:22,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152603988] [2022-10-15 20:28:22,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:22,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:22,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:22,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:22,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:28:22,352 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 20:28:22,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:22,445 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2022-10-15 20:28:22,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:22,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 20:28:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:22,451 INFO L225 Difference]: With dead ends: 69 [2022-10-15 20:28:22,451 INFO L226 Difference]: Without dead ends: 49 [2022-10-15 20:28:22,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:22,457 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 54 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 20:28:22,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 54 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-15 20:28:22,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-10-15 20:28:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.4) internal successors, (49), 41 states have internal predecessors, (49), 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 20:28:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-10-15 20:28:22,483 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 12 [2022-10-15 20:28:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:22,484 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-10-15 20:28:22,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 20:28:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-10-15 20:28:22,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 20:28:22,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:22,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:22,523 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 20:28:22,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:22,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:22,704 INFO L85 PathProgramCache]: Analyzing trace with hash 676554540, now seen corresponding path program 1 times [2022-10-15 20:28:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500056568] [2022-10-15 20:28:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:22,906 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 20:28:22,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:22,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500056568] [2022-10-15 20:28:22,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500056568] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:22,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958639281] [2022-10-15 20:28:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:22,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:22,912 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 20:28:22,917 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 20:28:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:22,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:22,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:23,033 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 20:28:23,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:23,100 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 20:28:23,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958639281] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:23,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:23,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:28:23,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804895381] [2022-10-15 20:28:23,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:23,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:28:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:23,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:28:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:28:23,105 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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 20:28:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:23,335 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2022-10-15 20:28:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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) Word has length 12 [2022-10-15 20:28:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:23,339 INFO L225 Difference]: With dead ends: 100 [2022-10-15 20:28:23,340 INFO L226 Difference]: Without dead ends: 99 [2022-10-15 20:28:23,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-15 20:28:23,349 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 124 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:23,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 119 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-15 20:28:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 53. [2022-10-15 20:28:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 52 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-10-15 20:28:23,375 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 12 [2022-10-15 20:28:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:23,376 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-10-15 20:28:23,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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 20:28:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-10-15 20:28:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:28:23,378 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:23,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:23,422 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 20:28:23,592 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,SelfDestructingSolverStorable3 [2022-10-15 20:28:23,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash -501697180, now seen corresponding path program 1 times [2022-10-15 20:28:23,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:23,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653624649] [2022-10-15 20:28:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:23,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:23,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653624649] [2022-10-15 20:28:23,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653624649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:23,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:23,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:28:23,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213758504] [2022-10-15 20:28:23,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:23,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:23,669 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:23,701 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2022-10-15 20:28:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:23,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 20:28:23,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:23,705 INFO L225 Difference]: With dead ends: 70 [2022-10-15 20:28:23,705 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 20:28:23,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:23,707 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:23,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 37 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 20:28:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2022-10-15 20:28:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 52 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-10-15 20:28:23,719 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 13 [2022-10-15 20:28:23,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:23,719 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-10-15 20:28:23,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-10-15 20:28:23,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:28:23,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:23,724 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:23,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:28:23,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:23,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:23,725 INFO L85 PathProgramCache]: Analyzing trace with hash -501645681, now seen corresponding path program 1 times [2022-10-15 20:28:23,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:23,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661386528] [2022-10-15 20:28:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:23,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:23,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661386528] [2022-10-15 20:28:23,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661386528] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:23,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330518577] [2022-10-15 20:28:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:23,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:23,825 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 20:28:23,845 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 20:28:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:23,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:23,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:23,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:23,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330518577] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:23,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:23,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:28:23,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372163944] [2022-10-15 20:28:23,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:23,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:28:23,945 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:23,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:23,997 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2022-10-15 20:28:23,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:23,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 20:28:23,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:23,999 INFO L225 Difference]: With dead ends: 53 [2022-10-15 20:28:23,999 INFO L226 Difference]: Without dead ends: 52 [2022-10-15 20:28:24,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:24,002 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:24,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 42 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:24,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-15 20:28:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-15 20:28:24,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 51 states have internal predecessors, (62), 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 20:28:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-10-15 20:28:24,032 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 13 [2022-10-15 20:28:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:24,033 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-10-15 20:28:24,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-10-15 20:28:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:28:24,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:24,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:24,075 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 20:28:24,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:24,252 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:24,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1369092884, now seen corresponding path program 1 times [2022-10-15 20:28:24,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:24,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883203523] [2022-10-15 20:28:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:24,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:24,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:24,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883203523] [2022-10-15 20:28:24,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883203523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:24,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:24,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:28:24,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642917855] [2022-10-15 20:28:24,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:24,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:24,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:24,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:24,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:24,317 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 20:28:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:24,349 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2022-10-15 20:28:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:24,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-15 20:28:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:24,351 INFO L225 Difference]: With dead ends: 60 [2022-10-15 20:28:24,351 INFO L226 Difference]: Without dead ends: 58 [2022-10-15 20:28:24,352 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 20:28:24,353 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:24,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-15 20:28:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-15 20:28:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 57 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 20:28:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2022-10-15 20:28:24,363 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 14 [2022-10-15 20:28:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:24,363 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2022-10-15 20:28:24,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 20:28:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2022-10-15 20:28:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 20:28:24,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:24,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:24,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 20:28:24,366 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:24,367 INFO L85 PathProgramCache]: Analyzing trace with hash 356876968, now seen corresponding path program 1 times [2022-10-15 20:28:24,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:24,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576075436] [2022-10-15 20:28:24,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:24,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:28:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:24,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576075436] [2022-10-15 20:28:24,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576075436] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:24,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:24,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:24,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557774370] [2022-10-15 20:28:24,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:24,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:24,444 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:28:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:24,469 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2022-10-15 20:28:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:28:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:24,471 INFO L225 Difference]: With dead ends: 58 [2022-10-15 20:28:24,471 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 20:28:24,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:24,473 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 20:28:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 47. [2022-10-15 20:28:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.255813953488372) internal successors, (54), 46 states have internal predecessors, (54), 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 20:28:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-10-15 20:28:24,487 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 17 [2022-10-15 20:28:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:24,492 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-10-15 20:28:24,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:28:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-10-15 20:28:24,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 20:28:24,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:24,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:24,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 20:28:24,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:24,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash -800645808, now seen corresponding path program 1 times [2022-10-15 20:28:24,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:24,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869655220] [2022-10-15 20:28:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:24,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:24,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869655220] [2022-10-15 20:28:24,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869655220] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:24,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207647152] [2022-10-15 20:28:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:24,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:24,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:24,655 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 20:28:24,669 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 20:28:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:24,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:24,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:24,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:24,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207647152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:24,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:24,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-15 20:28:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48191255] [2022-10-15 20:28:24,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:24,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:24,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:24,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:28:24,866 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 6 states, 6 states have (on average 3.0) 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 20:28:24,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:24,912 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2022-10-15 20:28:24,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:24,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) 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 20:28:24,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:24,914 INFO L225 Difference]: With dead ends: 93 [2022-10-15 20:28:24,914 INFO L226 Difference]: Without dead ends: 68 [2022-10-15 20:28:24,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:24,917 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:24,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:24,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-15 20:28:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-10-15 20:28:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 66 states have internal predecessors, (74), 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 20:28:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2022-10-15 20:28:24,942 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 18 [2022-10-15 20:28:24,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:24,943 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2022-10-15 20:28:24,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) 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 20:28:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2022-10-15 20:28:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 20:28:24,949 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:24,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:24,978 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 20:28:25,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:25,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:25,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2080509486, now seen corresponding path program 1 times [2022-10-15 20:28:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:25,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974422448] [2022-10-15 20:28:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:25,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:25,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:25,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974422448] [2022-10-15 20:28:25,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974422448] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:25,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753256209] [2022-10-15 20:28:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:25,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:25,246 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 20:28:25,276 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 20:28:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:25,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:25,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:25,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:25,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753256209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:25,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:25,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:28:25,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409612375] [2022-10-15 20:28:25,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:25,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:28:25,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:28:25,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:28:25,417 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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 20:28:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:25,561 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2022-10-15 20:28:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:25,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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) Word has length 18 [2022-10-15 20:28:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:25,563 INFO L225 Difference]: With dead ends: 95 [2022-10-15 20:28:25,563 INFO L226 Difference]: Without dead ends: 94 [2022-10-15 20:28:25,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-15 20:28:25,564 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 37 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:25,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 92 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-15 20:28:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2022-10-15 20:28:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 77 states have internal predecessors, (90), 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 20:28:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2022-10-15 20:28:25,574 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 18 [2022-10-15 20:28:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:25,574 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2022-10-15 20:28:25,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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 20:28:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2022-10-15 20:28:25,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:28:25,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:25,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:25,619 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 20:28:25,789 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,SelfDestructingSolverStorable9 [2022-10-15 20:28:25,790 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash -71335194, now seen corresponding path program 1 times [2022-10-15 20:28:25,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:25,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605271526] [2022-10-15 20:28:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:25,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:28:25,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:25,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605271526] [2022-10-15 20:28:25,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605271526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:25,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:25,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:25,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936890037] [2022-10-15 20:28:25,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:25,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:25,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:25,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:25,845 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:25,860 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2022-10-15 20:28:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 20:28:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:25,862 INFO L225 Difference]: With dead ends: 78 [2022-10-15 20:28:25,862 INFO L226 Difference]: Without dead ends: 74 [2022-10-15 20:28:25,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:25,863 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:25,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:25,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-15 20:28:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-15 20:28:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 73 states have internal predecessors, (83), 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 20:28:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2022-10-15 20:28:25,876 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 19 [2022-10-15 20:28:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:25,877 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2022-10-15 20:28:25,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2022-10-15 20:28:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:28:25,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:25,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:25,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 20:28:25,881 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash -71284549, now seen corresponding path program 1 times [2022-10-15 20:28:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:25,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330695562] [2022-10-15 20:28:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:25,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:25,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330695562] [2022-10-15 20:28:25,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330695562] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:25,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999516768] [2022-10-15 20:28:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:25,985 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 20:28:25,994 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 20:28:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:26,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:26,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:26,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:26,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999516768] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:26,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:26,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:28:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287090313] [2022-10-15 20:28:26,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:26,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:26,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:26,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:26,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:28:26,118 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:26,164 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2022-10-15 20:28:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:26,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 20:28:26,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:26,166 INFO L225 Difference]: With dead ends: 74 [2022-10-15 20:28:26,166 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 20:28:26,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:26,168 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:26,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:26,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 20:28:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-15 20:28:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 1.1267605633802817) internal successors, (80), 72 states have internal predecessors, (80), 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 20:28:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-10-15 20:28:26,178 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 19 [2022-10-15 20:28:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:26,179 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-10-15 20:28:26,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-10-15 20:28:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:28:26,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:26,180 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:26,232 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 20:28:26,394 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 20:28:26,394 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:26,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:26,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1475160672, now seen corresponding path program 2 times [2022-10-15 20:28:26,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:26,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104317205] [2022-10-15 20:28:26,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:26,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:26,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:26,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104317205] [2022-10-15 20:28:26,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104317205] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:26,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973518934] [2022-10-15 20:28:26,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:28:26,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:26,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:26,564 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 20:28:26,565 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 20:28:26,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:28:26,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:28:26,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:28:26,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 20:28:26,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 20:28:26,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973518934] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:26,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:26,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-15 20:28:26,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301010462] [2022-10-15 20:28:26,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:26,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 20:28:26,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 20:28:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-15 20:28:26,762 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 20:28:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:26,974 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2022-10-15 20:28:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:26,975 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 20:28:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:26,976 INFO L225 Difference]: With dead ends: 190 [2022-10-15 20:28:26,976 INFO L226 Difference]: Without dead ends: 163 [2022-10-15 20:28:26,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-15 20:28:26,978 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 114 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:26,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 68 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-15 20:28:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 38. [2022-10-15 20:28:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 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 20:28:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-15 20:28:26,987 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 24 [2022-10-15 20:28:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:26,987 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-15 20:28:26,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 20:28:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-15 20:28:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 20:28:26,989 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:26,989 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:27,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:28:27,203 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 20:28:27,204 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 20:28:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1856140922, now seen corresponding path program 2 times [2022-10-15 20:28:27,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:27,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017242334] [2022-10-15 20:28:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:28:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017242334] [2022-10-15 20:28:27,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017242334] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951559055] [2022-10-15 20:28:27,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:28:27,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:27,454 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 20:28:27,474 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 20:28:27,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:28:27,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:28:27,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:28:27,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 20:28:27,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 20:28:27,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951559055] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:27,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:27,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-15 20:28:27,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439881687] [2022-10-15 20:28:27,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:27,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 20:28:27,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:27,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 20:28:27,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-15 20:28:27,677 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 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 20:28:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:27,860 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2022-10-15 20:28:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 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 30 [2022-10-15 20:28:27,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:27,861 INFO L225 Difference]: With dead ends: 44 [2022-10-15 20:28:27,861 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:28:27,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-15 20:28:27,863 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 32 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:27,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 53 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:28:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:28:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:28:27,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-10-15 20:28:27,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:27,865 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:28:27,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 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 20:28:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:28:27,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:28:27,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-15 20:28:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-15 20:28:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-15 20:28:27,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-15 20:28:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-15 20:28:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-15 20:28:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-15 20:28:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-15 20:28:27,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-15 20:28:27,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-15 20:28:27,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:28:28,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 20:28:28,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:28:28,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 568) no Hoare annotation was computed. [2022-10-15 20:28:28,683 INFO L899 garLoopResultBuilder]: For program point L564-2(lines 564 567) no Hoare annotation was computed. [2022-10-15 20:28:28,684 INFO L899 garLoopResultBuilder]: For program point L564-3(line 564) no Hoare annotation was computed. [2022-10-15 20:28:28,684 INFO L899 garLoopResultBuilder]: For program point L564-4(line 564) no Hoare annotation was computed. [2022-10-15 20:28:28,684 INFO L895 garLoopResultBuilder]: At program point L564-5(lines 564 567) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2 .cse3))) [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point L564-6(lines 564 567) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 574) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 564) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 20:28:28,685 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 549) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 540 549) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 529) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 564) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point L574(line 574) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point L574-1(line 574) no Hoare annotation was computed. [2022-10-15 20:28:28,686 INFO L902 garLoopResultBuilder]: At program point L533(lines 522 534) the Hoare annotation is: true [2022-10-15 20:28:28,686 INFO L899 garLoopResultBuilder]: For program point L558-1(lines 558 560) no Hoare annotation was computed. [2022-10-15 20:28:28,687 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 526) no Hoare annotation was computed. [2022-10-15 20:28:28,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 529) no Hoare annotation was computed. [2022-10-15 20:28:28,687 INFO L902 garLoopResultBuilder]: At program point L550(lines 535 551) the Hoare annotation is: true [2022-10-15 20:28:28,687 INFO L902 garLoopResultBuilder]: At program point L575(lines 552 576) the Hoare annotation is: true [2022-10-15 20:28:28,687 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 542 547) no Hoare annotation was computed. [2022-10-15 20:28:28,687 INFO L899 garLoopResultBuilder]: For program point L542-2(lines 542 547) no Hoare annotation was computed. [2022-10-15 20:28:28,687 INFO L902 garLoopResultBuilder]: At program point L542-4(lines 542 547) the Hoare annotation is: true [2022-10-15 20:28:28,688 INFO L899 garLoopResultBuilder]: For program point L542-5(lines 542 547) no Hoare annotation was computed. [2022-10-15 20:28:28,688 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 518 519) no Hoare annotation was computed. [2022-10-15 20:28:28,688 INFO L899 garLoopResultBuilder]: For program point L518-3(lines 518 519) no Hoare annotation was computed. [2022-10-15 20:28:28,688 INFO L902 garLoopResultBuilder]: At program point L518-4(lines 518 519) the Hoare annotation is: true [2022-10-15 20:28:28,688 INFO L899 garLoopResultBuilder]: For program point L518-5(lines 518 519) no Hoare annotation was computed. [2022-10-15 20:28:28,688 INFO L899 garLoopResultBuilder]: For program point L543(lines 543 546) no Hoare annotation was computed. [2022-10-15 20:28:28,689 INFO L902 garLoopResultBuilder]: At program point L543-2(lines 543 546) the Hoare annotation is: true [2022-10-15 20:28:28,689 INFO L899 garLoopResultBuilder]: For program point L568-2(lines 568 571) no Hoare annotation was computed. [2022-10-15 20:28:28,689 INFO L899 garLoopResultBuilder]: For program point L568-3(line 568) no Hoare annotation was computed. [2022-10-15 20:28:28,689 INFO L899 garLoopResultBuilder]: For program point L568-4(line 568) no Hoare annotation was computed. [2022-10-15 20:28:28,689 INFO L895 garLoopResultBuilder]: At program point L568-5(lines 568 571) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4) (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2 .cse3 .cse4))) [2022-10-15 20:28:28,689 INFO L899 garLoopResultBuilder]: For program point L568-6(lines 568 571) no Hoare annotation was computed. [2022-10-15 20:28:28,689 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 527 532) no Hoare annotation was computed. [2022-10-15 20:28:28,690 INFO L899 garLoopResultBuilder]: For program point L527-2(lines 527 532) no Hoare annotation was computed. [2022-10-15 20:28:28,690 INFO L902 garLoopResultBuilder]: At program point L527-4(lines 527 532) the Hoare annotation is: true [2022-10-15 20:28:28,690 INFO L899 garLoopResultBuilder]: For program point L527-5(lines 527 532) no Hoare annotation was computed. [2022-10-15 20:28:28,690 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 545) no Hoare annotation was computed. [2022-10-15 20:28:28,690 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 20:28:28,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 573) no Hoare annotation was computed. [2022-10-15 20:28:28,691 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 529) no Hoare annotation was computed. [2022-10-15 20:28:28,691 INFO L902 garLoopResultBuilder]: At program point L520(lines 514 521) the Hoare annotation is: true [2022-10-15 20:28:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 20:28:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 573) no Hoare annotation was computed. [2022-10-15 20:28:28,691 INFO L899 garLoopResultBuilder]: For program point L529(line 529) no Hoare annotation was computed. [2022-10-15 20:28:28,691 INFO L899 garLoopResultBuilder]: For program point L529-1(line 529) no Hoare annotation was computed. [2022-10-15 20:28:28,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 568) no Hoare annotation was computed. [2022-10-15 20:28:28,692 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 531) no Hoare annotation was computed. [2022-10-15 20:28:28,692 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 557) no Hoare annotation was computed. [2022-10-15 20:28:28,692 INFO L899 garLoopResultBuilder]: For program point L555-2(lines 552 576) no Hoare annotation was computed. [2022-10-15 20:28:28,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 574) no Hoare annotation was computed. [2022-10-15 20:28:28,697 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:28,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 20:28:28,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:28:28 BoogieIcfgContainer [2022-10-15 20:28:28,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 20:28:28,732 INFO L158 Benchmark]: Toolchain (without parser) took 10063.29ms. Allocated memory was 168.8MB in the beginning and 205.5MB in the end (delta: 36.7MB). Free memory was 141.4MB in the beginning and 161.9MB in the end (delta: -20.5MB). Peak memory consumption was 109.2MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,732 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 168.8MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:28:28,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.36ms. Allocated memory is still 168.8MB. Free memory was 141.3MB in the beginning and 125.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.48ms. Allocated memory is still 168.8MB. Free memory was 125.0MB in the beginning and 122.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,735 INFO L158 Benchmark]: Boogie Preprocessor took 41.87ms. Allocated memory is still 168.8MB. Free memory was 122.8MB in the beginning and 121.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,735 INFO L158 Benchmark]: RCFGBuilder took 897.03ms. Allocated memory is still 168.8MB. Free memory was 121.0MB in the beginning and 138.8MB in the end (delta: -17.8MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,738 INFO L158 Benchmark]: TraceAbstraction took 8179.06ms. Allocated memory was 168.8MB in the beginning and 205.5MB in the end (delta: 36.7MB). Free memory was 138.3MB in the beginning and 161.9MB in the end (delta: -23.6MB). Peak memory consumption was 104.9MB. Max. memory is 8.0GB. [2022-10-15 20:28:28,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 168.8MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 860.36ms. Allocated memory is still 168.8MB. Free memory was 141.3MB in the beginning and 125.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.48ms. Allocated memory is still 168.8MB. Free memory was 125.0MB in the beginning and 122.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.87ms. Allocated memory is still 168.8MB. Free memory was 122.8MB in the beginning and 121.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 897.03ms. Allocated memory is still 168.8MB. Free memory was 121.0MB in the beginning and 138.8MB in the end (delta: -17.8MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * TraceAbstraction took 8179.06ms. Allocated memory was 168.8MB in the beginning and 205.5MB in the end (delta: 36.7MB). Free memory was 138.3MB in the beginning and 161.9MB in the end (delta: -23.6MB). Peak memory consumption was 104.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 573]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 573]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 529]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 529]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 867 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 577 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 290 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 204 SyntacticMatches, 4 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=10, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 228 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 48 NumberOfFragments, 80 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1175 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 10 FomulaSimplificationsInter, 2267 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 372 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 1108 SizeOfPredicates, 20 NumberOfNonLiveVariables, 623 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 146/278 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: (((((1 <= i && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && 1 <= i) && length2 <= 2147483647) || (((((1 <= i && i == 0) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: ((((i == 0 && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || ((((1 <= i && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-10-15 20:28:28,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...