/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:27:56,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:27:56,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:27:56,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:27:56,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:27:56,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:27:56,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:27:56,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:27:56,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:27:56,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:27:56,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:27:56,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:27:56,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:27:56,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:27:56,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:27:56,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:27:56,966 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:27:56,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:27:56,968 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:27:56,968 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:27:56,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:27:56,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:27:56,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:27:56,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:27:56,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:27:56,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:27:56,970 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:27:56,970 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:27:56,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:27:56,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:27:56,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:27:56,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:27:56,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:27:56,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:27:56,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:56,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:27:56,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:27:56,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:27:56,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:27:56,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:27:56,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:27:56,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:27:57,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:27:57,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:27:57,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:27:57,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:27:57,398 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:27:57,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2022-10-16 17:27:57,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93aafee0b/35ff65d8ec3a40e49e5cad1091ff5d86/FLAGc90c7c128 [2022-10-16 17:27:58,230 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:27:58,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2022-10-16 17:27:58,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93aafee0b/35ff65d8ec3a40e49e5cad1091ff5d86/FLAGc90c7c128 [2022-10-16 17:27:58,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93aafee0b/35ff65d8ec3a40e49e5cad1091ff5d86 [2022-10-16 17:27:58,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:27:58,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:27:58,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:58,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:27:58,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:27:58,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638031f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58, skipping insertion in model container [2022-10-16 17:27:58,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:27:58,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:27:58,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:58,826 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:27:58,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:58,862 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:27:58,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58 WrapperNode [2022-10-16 17:27:58,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:58,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:58,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:27:58,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:27:58,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,905 INFO L138 Inliner]: procedures = 11, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-10-16 17:27:58,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:58,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:27:58,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:27:58,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:27:58,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,935 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:27:58,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:27:58,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:27:58,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:27:58,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:58,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:59,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:27:59,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:27:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:27:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:27:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:27:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:27:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:27:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure selectionSort [2022-10-16 17:27:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure selectionSort [2022-10-16 17:27:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:27:59,162 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:27:59,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:27:59,455 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:27:59,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:27:59,472 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:27:59,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:59 BoogieIcfgContainer [2022-10-16 17:27:59,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:27:59,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:27:59,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:27:59,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:27:59,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:27:58" (1/3) ... [2022-10-16 17:27:59,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d37e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:59, skipping insertion in model container [2022-10-16 17:27:59,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58" (2/3) ... [2022-10-16 17:27:59,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d37e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:59, skipping insertion in model container [2022-10-16 17:27:59,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:59" (3/3) ... [2022-10-16 17:27:59,487 INFO L112 eAbstractionObserver]: Analyzing ICFG selectionSort_recursive.i [2022-10-16 17:27:59,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:27:59,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 17:27:59,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:27:59,656 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;@12a533fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:27:59,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 17:27:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 25 states have (on average 1.68) internal successors, (42), 36 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:27:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:27:59,683 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:59,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:27:59,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:27:59,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:59,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1807288630, now seen corresponding path program 1 times [2022-10-16 17:27:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:59,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676457058] [2022-10-16 17:27:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:59,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:27:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:27:59,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:27:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676457058] [2022-10-16 17:27:59,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676457058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:27:59,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:27:59,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:27:59,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006102042] [2022-10-16 17:27:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:27:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 17:27:59,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:27:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 17:27:59,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:27:59,973 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.68) internal successors, (42), 36 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:00,008 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2022-10-16 17:28:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 17:28:00,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:28:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:00,025 INFO L225 Difference]: With dead ends: 69 [2022-10-16 17:28:00,026 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 17:28:00,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:28:00,038 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:00,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 17:28:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-16 17:28:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.619047619047619) internal successors, (34), 31 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-10-16 17:28:00,102 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 7 [2022-10-16 17:28:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:00,103 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-10-16 17:28:00,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-10-16 17:28:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:28:00,105 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:00,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:00,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:28:00,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1806990720, now seen corresponding path program 1 times [2022-10-16 17:28:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:00,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189313286] [2022-10-16 17:28:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:00,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:00,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189313286] [2022-10-16 17:28:00,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189313286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:00,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:00,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:00,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441225349] [2022-10-16 17:28:00,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:00,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:28:00,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:28:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:28:00,279 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:00,310 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-10-16 17:28:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:28:00,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:28:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:00,312 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:28:00,312 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 17:28:00,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:28:00,315 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:00,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 17:28:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-10-16 17:28:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 32 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-10-16 17:28:00,325 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 7 [2022-10-16 17:28:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:00,325 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-10-16 17:28:00,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-10-16 17:28:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:28:00,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:00,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:28:00,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:28:00,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash 889574220, now seen corresponding path program 1 times [2022-10-16 17:28:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:00,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62720806] [2022-10-16 17:28:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:00,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62720806] [2022-10-16 17:28:00,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62720806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:00,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:00,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190874276] [2022-10-16 17:28:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:28:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:28:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:28:00,449 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:00,510 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-10-16 17:28:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:00,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:28:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:00,512 INFO L225 Difference]: With dead ends: 39 [2022-10-16 17:28:00,512 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 17:28:00,513 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 [2022-10-16 17:28:00,519 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 91 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 [2022-10-16 17:28:00,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 91 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 17:28:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-16 17:28:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-10-16 17:28:00,534 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 6 [2022-10-16 17:28:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:00,534 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-10-16 17:28:00,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-10-16 17:28:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:28:00,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:00,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:00,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:28:00,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:00,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:00,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1187373756, now seen corresponding path program 1 times [2022-10-16 17:28:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:00,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212567784] [2022-10-16 17:28:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:00,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212567784] [2022-10-16 17:28:00,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212567784] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:00,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322397572] [2022-10-16 17:28:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:00,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:00,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:00,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:28:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:28:00,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:00,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:28:00,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:00,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322397572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:00,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:00,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 17:28:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543647583] [2022-10-16 17:28:00,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:00,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:28:00,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:00,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:28:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:28:00,944 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:00,989 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-10-16 17:28:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:28:00,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:28:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:00,991 INFO L225 Difference]: With dead ends: 37 [2022-10-16 17:28:00,991 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:28:00,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:28:00,994 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:00,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 56 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:00,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:28:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-10-16 17:28:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.48) internal successors, (37), 34 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-10-16 17:28:01,003 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 11 [2022-10-16 17:28:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:01,003 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-10-16 17:28:01,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-10-16 17:28:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:28:01,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:01,005 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:01,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:28:01,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:01,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:01,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:01,222 INFO L85 PathProgramCache]: Analyzing trace with hash -869586168, now seen corresponding path program 1 times [2022-10-16 17:28:01,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:01,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422753228] [2022-10-16 17:28:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:01,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422753228] [2022-10-16 17:28:01,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422753228] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528875767] [2022-10-16 17:28:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:01,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:01,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:01,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:28:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:28:01,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:01,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:01,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528875767] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:01,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:01,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:28:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209237616] [2022-10-16 17:28:01,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:01,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:28:01,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:01,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:28:01,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:28:01,477 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:01,647 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2022-10-16 17:28:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:28:01,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 17:28:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:01,650 INFO L225 Difference]: With dead ends: 55 [2022-10-16 17:28:01,650 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 17:28:01,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:28:01,654 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 29 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:01,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 165 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 17:28:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2022-10-16 17:28:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 45 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2022-10-16 17:28:01,664 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 10 [2022-10-16 17:28:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:01,665 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2022-10-16 17:28:01,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2022-10-16 17:28:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:28:01,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:01,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:01,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:01,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:01,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting selectionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1846119292, now seen corresponding path program 1 times [2022-10-16 17:28:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:01,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487497967] [2022-10-16 17:28:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:28:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:02,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487497967] [2022-10-16 17:28:02,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487497967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:02,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:02,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:28:02,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997739113] [2022-10-16 17:28:02,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:28:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:28:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:28:02,046 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:02,086 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-10-16 17:28:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:28:02,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:28:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:02,089 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:28:02,090 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 17:28:02,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:02,092 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 59 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 [2022-10-16 17:28:02,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 59 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:02,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 17:28:02,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 17:28:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-10-16 17:28:02,120 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 12 [2022-10-16 17:28:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:02,120 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-10-16 17:28:02,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-10-16 17:28:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:28:02,123 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:02,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:28:02,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:28:02,124 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1187367381, now seen corresponding path program 1 times [2022-10-16 17:28:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:02,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754027098] [2022-10-16 17:28:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:02,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754027098] [2022-10-16 17:28:02,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754027098] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:02,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844405860] [2022-10-16 17:28:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:02,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:02,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:28:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:28:02,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:02,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:02,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844405860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:02,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:02,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:28:02,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489493952] [2022-10-16 17:28:02,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:02,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:28:02,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:02,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:28:02,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:28:02,417 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 17:28:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:02,468 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2022-10-16 17:28:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:28:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-10-16 17:28:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:02,472 INFO L225 Difference]: With dead ends: 46 [2022-10-16 17:28:02,472 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 17:28:02,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:28:02,474 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:02,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 104 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:02,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 17:28:02,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 17:28:02,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-10-16 17:28:02,500 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 11 [2022-10-16 17:28:02,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:02,502 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-10-16 17:28:02,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 17:28:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-10-16 17:28:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 17:28:02,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:02,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:02,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:02,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:02,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting selectionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:02,721 INFO L85 PathProgramCache]: Analyzing trace with hash 299148542, now seen corresponding path program 1 times [2022-10-16 17:28:02,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:02,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524585215] [2022-10-16 17:28:02,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:28:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:02,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524585215] [2022-10-16 17:28:02,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524585215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:02,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:02,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:02,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259475619] [2022-10-16 17:28:02,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:02,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:28:02,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:02,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:28:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:28:02,809 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:02,855 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2022-10-16 17:28:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:02,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 17:28:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:02,857 INFO L225 Difference]: With dead ends: 66 [2022-10-16 17:28:02,857 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 17:28:02,858 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 [2022-10-16 17:28:02,861 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:02,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 17:28:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2022-10-16 17:28:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.34) internal successors, (67), 56 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2022-10-16 17:28:02,876 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 14 [2022-10-16 17:28:02,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:02,877 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2022-10-16 17:28:02,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2022-10-16 17:28:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:28:02,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:02,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:02,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:28:02,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting selectionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:02,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:02,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2097347025, now seen corresponding path program 1 times [2022-10-16 17:28:02,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:02,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980195754] [2022-10-16 17:28:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:03,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:03,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980195754] [2022-10-16 17:28:03,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980195754] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:03,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121377251] [2022-10-16 17:28:03,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:03,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:03,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:03,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:28:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 17:28:03,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:03,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:03,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121377251] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:03,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:03,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-10-16 17:28:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218297971] [2022-10-16 17:28:03,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:03,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:28:03,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:28:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:28:03,352 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:03,477 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2022-10-16 17:28:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:28:03,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 17:28:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:03,479 INFO L225 Difference]: With dead ends: 95 [2022-10-16 17:28:03,479 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 17:28:03,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:28:03,481 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:03,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 185 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 17:28:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 17:28:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.32) internal successors, (66), 56 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2022-10-16 17:28:03,489 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 19 [2022-10-16 17:28:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:03,489 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2022-10-16 17:28:03,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2022-10-16 17:28:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 17:28:03,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:03,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:03,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:03,710 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 [2022-10-16 17:28:03,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting selectionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:03,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1369628685, now seen corresponding path program 2 times [2022-10-16 17:28:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:03,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419814383] [2022-10-16 17:28:03,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:03,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:03,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419814383] [2022-10-16 17:28:03,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419814383] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:03,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948536243] [2022-10-16 17:28:03,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:28:03,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:03,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:03,900 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:03,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:28:03,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:28:03,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:28:03,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:28:03,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 17:28:04,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:04,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948536243] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:04,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:04,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2022-10-16 17:28:04,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984203708] [2022-10-16 17:28:04,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:04,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:28:04,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:04,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:28:04,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:28:04,100 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:04,228 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2022-10-16 17:28:04,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:28:04,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 17:28:04,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:04,229 INFO L225 Difference]: With dead ends: 69 [2022-10-16 17:28:04,230 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 17:28:04,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:28:04,231 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 76 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:04,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 42 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:04,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 17:28:04,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2022-10-16 17:28:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 50 states have (on average 1.24) internal successors, (62), 53 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-10-16 17:28:04,240 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 23 [2022-10-16 17:28:04,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:04,241 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-10-16 17:28:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-10-16 17:28:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:28:04,242 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:04,242 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 17:28:04,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 17:28:04,455 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 [2022-10-16 17:28:04,456 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:04,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1705394628, now seen corresponding path program 2 times [2022-10-16 17:28:04,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:04,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415670392] [2022-10-16 17:28:04,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:04,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:04,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:04,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415670392] [2022-10-16 17:28:04,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415670392] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:04,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103713513] [2022-10-16 17:28:04,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:28:04,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:04,624 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) [2022-10-16 17:28:04,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:28:04,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:28:04,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:28:04,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:28:04,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 17:28:04,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 17:28:04,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103713513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:04,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:04,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 17:28:04,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498196164] [2022-10-16 17:28:04,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:04,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:28:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:04,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:28:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:28:04,784 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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) [2022-10-16 17:28:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:04,968 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-10-16 17:28:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:28:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 22 [2022-10-16 17:28:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:04,969 INFO L225 Difference]: With dead ends: 66 [2022-10-16 17:28:04,969 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 17:28:04,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:28:04,971 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 34 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:04,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 170 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 17:28:04,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2022-10-16 17:28:04,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.225) internal successors, (49), 42 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-10-16 17:28:04,978 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 22 [2022-10-16 17:28:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:04,979 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-10-16 17:28:04,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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) [2022-10-16 17:28:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-10-16 17:28:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:28:04,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:04,980 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:05,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:05,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting selectionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash 491183816, now seen corresponding path program 1 times [2022-10-16 17:28:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:05,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383858026] [2022-10-16 17:28:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 17:28:05,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:05,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383858026] [2022-10-16 17:28:05,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383858026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:05,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:05,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:28:05,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062405187] [2022-10-16 17:28:05,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:05,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:28:05,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:05,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:28:05,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:05,273 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:05,335 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 17:28:05,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:28:05,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 17:28:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:05,337 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:28:05,337 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 17:28:05,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:28:05,338 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:05,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 94 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 17:28:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-10-16 17:28:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-10-16 17:28:05,345 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 24 [2022-10-16 17:28:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:05,345 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-10-16 17:28:05,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-10-16 17:28:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 17:28:05,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:05,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:05,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:28:05,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting selectionSortErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash -926793713, now seen corresponding path program 1 times [2022-10-16 17:28:05,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:05,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369732632] [2022-10-16 17:28:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:05,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:05,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369732632] [2022-10-16 17:28:05,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369732632] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:05,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527788285] [2022-10-16 17:28:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:05,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:05,520 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) [2022-10-16 17:28:05,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:28:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:05,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:28:05,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:05,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:28:05,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527788285] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:05,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:05,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-10-16 17:28:05,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002509044] [2022-10-16 17:28:05,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:05,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 17:28:05,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:05,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 17:28:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:28:05,827 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:06,088 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2022-10-16 17:28:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:28:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 17:28:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:06,089 INFO L225 Difference]: With dead ends: 73 [2022-10-16 17:28:06,089 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 17:28:06,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:28:06,091 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 85 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:06,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 77 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:28:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 17:28:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-10-16 17:28:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 44 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 17:28:06,097 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 30 [2022-10-16 17:28:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:06,098 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 17:28:06,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 17:28:06,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:28:06,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:06,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:06,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:06,299 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 [2022-10-16 17:28:06,300 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting selectionSortErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1368397781, now seen corresponding path program 1 times [2022-10-16 17:28:06,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:06,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351886531] [2022-10-16 17:28:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:28:06,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:06,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351886531] [2022-10-16 17:28:06,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351886531] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:06,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731346053] [2022-10-16 17:28:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:06,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:06,398 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) [2022-10-16 17:28:06,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:28:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:28:06,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:28:06,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:06,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731346053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:06,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:06,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-10-16 17:28:06,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700278634] [2022-10-16 17:28:06,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:06,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:28:06,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:06,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:28:06,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:28:06,504 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:06,532 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 17:28:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 17:28:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:06,533 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:28:06,533 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 17:28:06,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:28:06,535 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 33 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:06,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 17:28:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-10-16 17:28:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 39 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 17:28:06,542 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 35 [2022-10-16 17:28:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:06,542 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 17:28:06,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 17:28:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:28:06,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:06,543 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:06,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:06,759 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 [2022-10-16 17:28:06,760 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting selectionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:28:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash -672339423, now seen corresponding path program 1 times [2022-10-16 17:28:06,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:06,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782411364] [2022-10-16 17:28:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:28:06,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782411364] [2022-10-16 17:28:06,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782411364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:06,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634683586] [2022-10-16 17:28:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:06,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:06,882 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:06,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:28:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:28:06,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:28:07,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:28:07,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634683586] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:07,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:07,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 22 [2022-10-16 17:28:07,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523469478] [2022-10-16 17:28:07,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:07,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:28:07,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:07,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:28:07,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:28:07,344 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 22 states, 21 states have (on average 4.238095238095238) internal successors, (89), 16 states have internal predecessors, (89), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:07,742 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2022-10-16 17:28:07,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 17:28:07,742 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.238095238095238) internal successors, (89), 16 states have internal predecessors, (89), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 17:28:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:07,743 INFO L225 Difference]: With dead ends: 90 [2022-10-16 17:28:07,743 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:28:07,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:28:07,745 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 117 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:07,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 128 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:28:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:28:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:28:07,746 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) [2022-10-16 17:28:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:28:07,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2022-10-16 17:28:07,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:07,747 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:28:07,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.238095238095238) internal successors, (89), 16 states have internal predecessors, (89), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:28:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:28:07,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:28:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-16 17:28:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-16 17:28:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-16 17:28:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-16 17:28:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-16 17:28:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-16 17:28:07,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-16 17:28:07,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-16 17:28:07,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-16 17:28:07,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location selectionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-16 17:28:07,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:07,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:28:07,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:28:08,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-10-16 17:28:08,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:28:08,626 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-10-16 17:28:08,626 INFO L902 garLoopResultBuilder]: At program point L44(lines 26 45) the Hoare annotation is: true [2022-10-16 17:28:08,626 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-10-16 17:28:08,627 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 38) no Hoare annotation was computed. [2022-10-16 17:28:08,627 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-10-16 17:28:08,627 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-10-16 17:28:08,627 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:28:08,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-10-16 17:28:08,628 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 38) the Hoare annotation is: (let ((.cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse2 (<= 1 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 1)) (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~n~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2))) [2022-10-16 17:28:08,628 INFO L895 garLoopResultBuilder]: At program point L36-6(lines 36 38) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) .cse0 (<= 2 |ULTIMATE.start_main_~n~0#1|)) (and .cse0 (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1)))) [2022-10-16 17:28:08,628 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:28:08,628 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point selectionSortFINAL(lines 9 23) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L902 garLoopResultBuilder]: At program point selectionSortENTRY(lines 9 23) the Hoare annotation is: true [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point selectionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point selectionSortErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point selectionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point selectionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,629 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point selectionSortErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point selectionSortEXIT(lines 9 23) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point selectionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-10-16 17:28:08,630 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-10-16 17:28:08,631 INFO L899 garLoopResultBuilder]: For program point selectionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,631 INFO L895 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse2 (<= selectionSort_~size 2147483647)) (.cse3 (< (+ selectionSort_~startIndex 1) selectionSort_~size)) (.cse4 (<= 1 selectionSort_~size)) (.cse1 (not (<= |selectionSort_#in~size| 2147483647))) (.cse7 (not (= |selectionSort_#in~startIndex| 0))) (.cse6 (not (<= |selectionSort_#in~size| 2))) (.cse0 (not (<= 1 |selectionSort_#in~startIndex|))) (.cse5 (not (<= 1 |selectionSort_#in~size|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 (<= 2 selectionSort_~index~0) (<= 1 selectionSort_~startIndex) .cse4) .cse5) (or (<= selectionSort_~size 2) .cse6 .cse7 .cse5) (or (and .cse2 .cse3 .cse4 (= selectionSort_~startIndex 0)) .cse1 .cse7 .cse5) (or (not (<= |selectionSort_#in~size| 1)) .cse7 .cse5) (or .cse6 .cse0 .cse5))) [2022-10-16 17:28:08,631 INFO L899 garLoopResultBuilder]: For program point selectionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-10-16 17:28:08,631 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-10-16 17:28:08,631 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,632 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,632 INFO L899 garLoopResultBuilder]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2022-10-16 17:28:08,632 INFO L899 garLoopResultBuilder]: For program point L14-5(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,632 INFO L899 garLoopResultBuilder]: For program point L14-6(line 14) no Hoare annotation was computed. [2022-10-16 17:28:08,632 INFO L895 garLoopResultBuilder]: At program point L14-7(lines 14 18) the Hoare annotation is: (let ((.cse2 (not (= |selectionSort_#in~startIndex| 0))) (.cse4 (not (<= |selectionSort_#in~size| 2))) (.cse5 (not (<= 1 |selectionSort_#in~startIndex|))) (.cse0 (<= selectionSort_~size 2147483647)) (.cse1 (not (<= |selectionSort_#in~size| 2147483647))) (.cse3 (not (<= 1 |selectionSort_#in~size|)))) (and (or (and (<= 1 selectionSort_~index~0) .cse0 (<= 2 selectionSort_~size) (= selectionSort_~startIndex 0)) .cse1 .cse2 .cse3) (or (<= selectionSort_~size 2) .cse4 .cse2 .cse3) (or (not (<= |selectionSort_#in~size| 1)) .cse2 .cse3) (or .cse4 .cse5 .cse3) (or .cse5 (and .cse0 (< (+ selectionSort_~startIndex 1) selectionSort_~size) (<= 2 selectionSort_~index~0) (<= 1 selectionSort_~startIndex)) .cse1 .cse3))) [2022-10-16 17:28:08,632 INFO L899 garLoopResultBuilder]: For program point L14-8(lines 14 18) no Hoare annotation was computed. [2022-10-16 17:28:08,637 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:08,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:28:08,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:28:08 BoogieIcfgContainer [2022-10-16 17:28:08,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:28:08,662 INFO L158 Benchmark]: Toolchain (without parser) took 10057.22ms. Allocated memory was 156.2MB in the beginning and 204.5MB in the end (delta: 48.2MB). Free memory was 131.5MB in the beginning and 92.0MB in the end (delta: 39.5MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,662 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 156.2MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:28:08,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.76ms. Allocated memory is still 156.2MB. Free memory was 131.3MB in the beginning and 121.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.99ms. Allocated memory is still 156.2MB. Free memory was 121.7MB in the beginning and 120.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,663 INFO L158 Benchmark]: Boogie Preprocessor took 36.70ms. Allocated memory is still 156.2MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,664 INFO L158 Benchmark]: RCFGBuilder took 532.29ms. Allocated memory is still 156.2MB. Free memory was 119.1MB in the beginning and 107.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,664 INFO L158 Benchmark]: TraceAbstraction took 9182.56ms. Allocated memory was 156.2MB in the beginning and 204.5MB in the end (delta: 48.2MB). Free memory was 107.0MB in the beginning and 92.0MB in the end (delta: 14.9MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-10-16 17:28:08,666 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 156.2MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.76ms. Allocated memory is still 156.2MB. Free memory was 131.3MB in the beginning and 121.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.99ms. Allocated memory is still 156.2MB. Free memory was 121.7MB in the beginning and 120.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.70ms. Allocated memory is still 156.2MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 532.29ms. Allocated memory is still 156.2MB. Free memory was 119.1MB in the beginning and 107.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 9182.56ms. Allocated memory was 156.2MB in the beginning and 204.5MB in the end (delta: 48.2MB). Free memory was 107.0MB in the beginning and 92.0MB in the end (delta: 14.9MB). Peak memory consumption was 64.0MB. 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 562 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 562 mSDsluCounter, 1401 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1044 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1279 IncrementalHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 357 mSDtfsCounter, 1279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 263 SyntacticMatches, 16 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=8, InterpolantAutomatonStates: 116, 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, 15 MinimizatonAttempts, 54 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 42 PreInvPairs, 57 NumberOfFragments, 259 HoareAnnotationTreeSize, 42 FomulaSimplifications, 477 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 2034 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 472 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 564 ConstructedInterpolants, 0 QuantifiedInterpolants, 1610 SizeOfPredicates, 38 NumberOfNonLiveVariables, 727 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 148/269 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: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((1 <= index && size <= 2147483647) && 2 <= size) && startIndex == 0) || !(\old(size) <= 2147483647)) || !(\old(startIndex) == 0)) || !(1 <= \old(size))) && (((size <= 2 || !(\old(size) <= 2)) || !(\old(startIndex) == 0)) || !(1 <= \old(size)))) && ((!(\old(size) <= 1) || !(\old(startIndex) == 0)) || !(1 <= \old(size)))) && ((!(\old(size) <= 2) || !(1 <= \old(startIndex))) || !(1 <= \old(size)))) && (((!(1 <= \old(startIndex)) || (((size <= 2147483647 && startIndex + 1 < size) && 2 <= index) && 1 <= startIndex)) || !(\old(size) <= 2147483647)) || !(1 <= \old(size))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((n <= 2147483647 && 1 <= i) && 1 <= n) && i <= 1) || ((n <= 2147483647 && 1 <= i) && 2 <= n)) || ((n <= 2147483647 && i == 0) && 1 <= n) RESULT: Ultimate proved your program to be correct! [2022-10-16 17:28:08,720 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...