/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/ifeqn5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:33:34,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:33:34,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:33:34,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:33:34,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:33:34,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:33:34,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:33:34,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:33:35,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:33:35,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:33:35,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:33:35,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:33:35,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:33:35,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:33:35,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:33:35,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:33:35,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:33:35,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:33:35,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:33:35,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:33:35,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:33:35,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:33:35,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:33:35,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:33:35,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:33:35,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:33:35,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:33:35,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:33:35,088 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 10:33:35,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:33:35,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:33:35,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:33:35,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:33:35,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:33:35,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:33:35,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:33:35,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:33:35,150 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:33:35,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:33:35,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:33:35,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:33:35,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:33:35,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:33:35,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:33:35,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:33:35,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:33:35,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:33:35,153 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:33:35,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:33:35,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:33:35,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:33:35,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:33:35,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:33:35,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:33:35,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:33:35,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:33:35,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:33:35,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:33:35,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:33:35,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:33:35,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:33:35,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:33:35,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:33:35,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:33:35,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:33:35,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:33:35,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:33:35,660 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:33:35,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn5f.c [2022-10-16 10:33:35,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9a6abc8/b9906310bde140ab8d9bce031944e073/FLAGff313a618 [2022-10-16 10:33:36,386 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:33:36,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c [2022-10-16 10:33:36,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9a6abc8/b9906310bde140ab8d9bce031944e073/FLAGff313a618 [2022-10-16 10:33:36,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9a6abc8/b9906310bde140ab8d9bce031944e073 [2022-10-16 10:33:36,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:33:36,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:33:36,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:33:36,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:33:36,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:33:36,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:33:36" (1/1) ... [2022-10-16 10:33:36,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62df7b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:36, skipping insertion in model container [2022-10-16 10:33:36,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:33:36" (1/1) ... [2022-10-16 10:33:36,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:33:36,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:33:36,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c[590,603] [2022-10-16 10:33:37,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:33:37,070 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:33:37,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c[590,603] [2022-10-16 10:33:37,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:33:37,151 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:33:37,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37 WrapperNode [2022-10-16 10:33:37,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:33:37,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:33:37,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:33:37,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:33:37,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,244 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2022-10-16 10:33:37,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:33:37,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:33:37,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:33:37,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:33:37,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:33:37,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:33:37,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:33:37,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:33:37,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (1/1) ... [2022-10-16 10:33:37,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:33:37,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:37,386 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 10:33:37,402 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 10:33:37,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:33:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:33:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:33:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:33:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:33:37,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:33:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:33:37,580 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:33:37,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:33:42,931 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:33:42,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:33:42,940 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:33:42,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:33:42 BoogieIcfgContainer [2022-10-16 10:33:42,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:33:42,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:33:42,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:33:42,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:33:42,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:33:36" (1/3) ... [2022-10-16 10:33:42,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672b1ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:33:42, skipping insertion in model container [2022-10-16 10:33:42,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:33:37" (2/3) ... [2022-10-16 10:33:42,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672b1ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:33:42, skipping insertion in model container [2022-10-16 10:33:42,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:33:42" (3/3) ... [2022-10-16 10:33:42,955 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn5f.c [2022-10-16 10:33:42,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:33:42,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 10:33:43,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:33:43,079 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;@3491c72b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:33:43,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 10:33:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 73 states have internal predecessors, (84), 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 10:33:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:33:43,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:43,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:43,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:43,114 INFO L85 PathProgramCache]: Analyzing trace with hash 177631247, now seen corresponding path program 1 times [2022-10-16 10:33:43,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728388352] [2022-10-16 10:33:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:43,391 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 10:33:43,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:43,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728388352] [2022-10-16 10:33:43,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728388352] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:43,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:43,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:33:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130421719] [2022-10-16 10:33:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:43,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:33:43,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:43,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:33:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:33:43,447 INFO L87 Difference]: Start difference. First operand has 74 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 73 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:43,474 INFO L93 Difference]: Finished difference Result 141 states and 162 transitions. [2022-10-16 10:33:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:33:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:33:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:43,489 INFO L225 Difference]: With dead ends: 141 [2022-10-16 10:33:43,489 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 10:33:43,494 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 10:33:43,499 INFO L413 NwaCegarLoop]: 76 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, 76 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 10:33:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:33:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 10:33:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-16 10:33:43,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.627906976744186) internal successors, (70), 65 states have internal predecessors, (70), 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 10:33:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2022-10-16 10:33:43,550 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 8 [2022-10-16 10:33:43,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:43,550 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2022-10-16 10:33:43,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2022-10-16 10:33:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:33:43,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:43,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:43,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:33:43,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash 179478289, now seen corresponding path program 1 times [2022-10-16 10:33:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:43,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066305356] [2022-10-16 10:33:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:43,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:43,650 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 10:33:43,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:43,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066305356] [2022-10-16 10:33:43,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066305356] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:43,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:43,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:33:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212731868] [2022-10-16 10:33:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:43,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:33:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:43,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:33:43,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:33:43,658 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:43,847 INFO L93 Difference]: Finished difference Result 161 states and 180 transitions. [2022-10-16 10:33:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:33:43,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:33:43,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:43,850 INFO L225 Difference]: With dead ends: 161 [2022-10-16 10:33:43,851 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 10:33:43,852 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 10:33:43,854 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:43,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 70 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:33:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 10:33:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 80. [2022-10-16 10:33:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 79 states have internal predecessors, (86), 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 10:33:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2022-10-16 10:33:43,868 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 8 [2022-10-16 10:33:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:43,869 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2022-10-16 10:33:43,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2022-10-16 10:33:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:33:43,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:43,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:43,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:33:43,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:43,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1268858058, now seen corresponding path program 1 times [2022-10-16 10:33:43,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:43,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302624669] [2022-10-16 10:33:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:43,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:44,058 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 10:33:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:44,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302624669] [2022-10-16 10:33:44,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302624669] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:44,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:44,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:33:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327688767] [2022-10-16 10:33:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:44,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:44,062 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:44,217 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2022-10-16 10:33:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:44,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:33:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:44,219 INFO L225 Difference]: With dead ends: 100 [2022-10-16 10:33:44,220 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:33:44,220 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 10:33:44,222 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 28 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:44,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 113 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:33:44,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2022-10-16 10:33:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 82 states have internal predecessors, (89), 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 10:33:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2022-10-16 10:33:44,236 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 9 [2022-10-16 10:33:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:44,237 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2022-10-16 10:33:44,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2022-10-16 10:33:44,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:33:44,239 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:44,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:44,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:33:44,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash -436409949, now seen corresponding path program 1 times [2022-10-16 10:33:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:44,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436916572] [2022-10-16 10:33:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:44,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:44,326 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 10:33:44,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:44,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436916572] [2022-10-16 10:33:44,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436916572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:44,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:44,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:33:44,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73640152] [2022-10-16 10:33:44,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:44,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:44,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:44,329 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 10:33:44,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:44,443 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2022-10-16 10:33:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:44,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 10:33:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:44,448 INFO L225 Difference]: With dead ends: 154 [2022-10-16 10:33:44,448 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 10:33:44,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:44,451 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 123 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:44,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 67 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 10:33:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2022-10-16 10:33:44,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.45) internal successors, (87), 82 states have internal predecessors, (87), 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 10:33:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-10-16 10:33:44,463 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 11 [2022-10-16 10:33:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:44,463 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-10-16 10:33:44,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 10:33:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-10-16 10:33:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:33:44,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:44,465 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:44,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 10:33:44,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:44,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:44,466 INFO L85 PathProgramCache]: Analyzing trace with hash -337454983, now seen corresponding path program 1 times [2022-10-16 10:33:44,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:44,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857158237] [2022-10-16 10:33:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:44,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:44,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857158237] [2022-10-16 10:33:44,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857158237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:44,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579379215] [2022-10-16 10:33:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:44,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:44,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:44,596 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 10:33:44,601 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 10:33:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:44,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:33:44,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:44,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:44,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579379215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:44,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:33:44,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 10:33:44,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920067790] [2022-10-16 10:33:44,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:44,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:44,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:44,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:44,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:33:44,739 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:44,879 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2022-10-16 10:33:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:44,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 10:33:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:44,881 INFO L225 Difference]: With dead ends: 88 [2022-10-16 10:33:44,882 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:33:44,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:33:44,884 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 43 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:44,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 80 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:33:44,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2022-10-16 10:33:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 81 states have internal predecessors, (86), 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 10:33:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2022-10-16 10:33:44,896 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 13 [2022-10-16 10:33:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:44,896 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2022-10-16 10:33:44,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2022-10-16 10:33:44,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:33:44,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:44,898 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:44,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:33:45,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:45,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:45,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1871169820, now seen corresponding path program 1 times [2022-10-16 10:33:45,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:45,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298756640] [2022-10-16 10:33:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:45,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:45,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298756640] [2022-10-16 10:33:45,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298756640] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:45,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478506188] [2022-10-16 10:33:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:45,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:45,275 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 10:33:45,285 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 10:33:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:45,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:33:45,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:45,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:45,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478506188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:45,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:33:45,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:33:45,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326417669] [2022-10-16 10:33:45,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:45,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:33:45,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:45,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:33:45,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:33:45,443 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:45,599 INFO L93 Difference]: Finished difference Result 168 states and 178 transitions. [2022-10-16 10:33:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:33:45,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:33:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:45,601 INFO L225 Difference]: With dead ends: 168 [2022-10-16 10:33:45,601 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 10:33:45,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:33:45,603 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:45,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 10:33:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2022-10-16 10:33:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 78 states have internal predecessors, (82), 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 10:33:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2022-10-16 10:33:45,615 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 14 [2022-10-16 10:33:45,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:45,615 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2022-10-16 10:33:45,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:45,616 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2022-10-16 10:33:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:33:45,617 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:45,617 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:45,659 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 10:33:45,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 10:33:45,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:45,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2123277787, now seen corresponding path program 1 times [2022-10-16 10:33:45,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:45,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29467648] [2022-10-16 10:33:45,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:45,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29467648] [2022-10-16 10:33:46,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29467648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943719864] [2022-10-16 10:33:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:46,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:46,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:46,292 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 10:33:46,319 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 10:33:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:46,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:33:46,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:46,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:33:46,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:33:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:46,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:46,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:33:46,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-10-16 10:33:46,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:46,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943719864] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:46,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:46,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 10:33:46,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142041023] [2022-10-16 10:33:46,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:46,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:33:46,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:46,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:33:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:33:46,633 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:47,103 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2022-10-16 10:33:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:33:47,104 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:33:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:47,105 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:33:47,105 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:33:47,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:33:47,107 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:47,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 222 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:33:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:33:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 94. [2022-10-16 10:33:47,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 93 states have internal predecessors, (100), 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 10:33:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2022-10-16 10:33:47,146 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 15 [2022-10-16 10:33:47,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:47,147 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2022-10-16 10:33:47,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:47,147 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2022-10-16 10:33:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:33:47,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:47,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:47,212 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 10:33:47,352 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 10:33:47,353 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:47,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:47,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1357207355, now seen corresponding path program 1 times [2022-10-16 10:33:47,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:47,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230365807] [2022-10-16 10:33:47,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:47,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:47,402 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 10:33:47,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:47,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230365807] [2022-10-16 10:33:47,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230365807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:47,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:47,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:33:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603292772] [2022-10-16 10:33:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:47,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:47,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:47,406 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:47,490 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2022-10-16 10:33:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:47,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:33:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:47,492 INFO L225 Difference]: With dead ends: 107 [2022-10-16 10:33:47,492 INFO L226 Difference]: Without dead ends: 105 [2022-10-16 10:33:47,493 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 10:33:47,494 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 24 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:47,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 110 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-16 10:33:47,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 97. [2022-10-16 10:33:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 96 states have internal predecessors, (103), 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 10:33:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2022-10-16 10:33:47,505 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 16 [2022-10-16 10:33:47,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:47,505 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2022-10-16 10:33:47,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:47,505 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2022-10-16 10:33:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:33:47,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:47,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:47,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:33:47,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:47,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1709718360, now seen corresponding path program 1 times [2022-10-16 10:33:47,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:47,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303951131] [2022-10-16 10:33:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:47,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:47,570 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 10:33:47,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:47,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303951131] [2022-10-16 10:33:47,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303951131] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:47,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674270574] [2022-10-16 10:33:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:47,573 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 10:33:47,580 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 10:33:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:47,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:33:47,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:47,666 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 10:33:47,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:47,730 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 10:33:47,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674270574] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:47,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:47,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:33:47,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831672302] [2022-10-16 10:33:47,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:47,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:33:47,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:47,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:33:47,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:33:47,744 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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 10:33:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:47,946 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2022-10-16 10:33:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:33:47,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:33:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:47,949 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:33:47,949 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:33:47,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:33:47,954 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 96 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:47,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 156 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:33:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:33:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2022-10-16 10:33:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 89 states have (on average 1.3258426966292134) internal successors, (118), 108 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2022-10-16 10:33:47,984 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 18 [2022-10-16 10:33:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:47,984 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2022-10-16 10:33:47,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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 10:33:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2022-10-16 10:33:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:33:47,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:47,990 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:48,024 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 10:33:48,205 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 10:33:48,206 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:48,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash 601011110, now seen corresponding path program 1 times [2022-10-16 10:33:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:48,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302900123] [2022-10-16 10:33:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:33:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:48,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302900123] [2022-10-16 10:33:48,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302900123] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:48,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061952726] [2022-10-16 10:33:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:48,268 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 10:33:48,289 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 10:33:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:48,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:33:48,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:33:48,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:48,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061952726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:48,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:33:48,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 10:33:48,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992979887] [2022-10-16 10:33:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:48,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:48,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:48,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:33:48,343 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:48,419 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2022-10-16 10:33:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:48,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 10:33:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:48,421 INFO L225 Difference]: With dead ends: 109 [2022-10-16 10:33:48,421 INFO L226 Difference]: Without dead ends: 107 [2022-10-16 10:33:48,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:33:48,422 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:48,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 65 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:48,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-16 10:33:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-10-16 10:33:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 89 states have (on average 1.303370786516854) internal successors, (116), 106 states have internal predecessors, (116), 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 10:33:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2022-10-16 10:33:48,430 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 20 [2022-10-16 10:33:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:48,430 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2022-10-16 10:33:48,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:48,431 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2022-10-16 10:33:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:33:48,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:48,432 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:48,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:33:48,648 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 10:33:48,648 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:48,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:48,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1451475318, now seen corresponding path program 1 times [2022-10-16 10:33:48,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:48,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679533246] [2022-10-16 10:33:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:48,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:33:48,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:48,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679533246] [2022-10-16 10:33:48,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679533246] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:48,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053657273] [2022-10-16 10:33:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:48,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:48,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:48,766 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 10:33:48,790 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 10:33:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:48,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:33:48,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:33:48,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:48,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053657273] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:48,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:33:48,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:33:48,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024033440] [2022-10-16 10:33:48,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:48,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:33:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:48,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:33:48,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:33:48,861 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 10:33:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:48,963 INFO L93 Difference]: Finished difference Result 168 states and 182 transitions. [2022-10-16 10:33:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:33:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 10:33:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:48,965 INFO L225 Difference]: With dead ends: 168 [2022-10-16 10:33:48,966 INFO L226 Difference]: Without dead ends: 112 [2022-10-16 10:33:48,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:33:48,967 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 46 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:48,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 86 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:48,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-16 10:33:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2022-10-16 10:33:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 102 states have internal predecessors, (111), 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 10:33:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2022-10-16 10:33:48,975 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 21 [2022-10-16 10:33:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:48,975 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2022-10-16 10:33:48,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 10:33:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2022-10-16 10:33:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:33:48,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:48,977 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:49,016 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 10:33:49,191 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 10:33:49,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash -829444182, now seen corresponding path program 1 times [2022-10-16 10:33:49,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:49,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953420288] [2022-10-16 10:33:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953420288] [2022-10-16 10:33:49,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953420288] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649043978] [2022-10-16 10:33:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:49,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:49,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:49,363 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 10:33:49,389 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 10:33:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:49,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:33:49,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:49,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:49,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649043978] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:49,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:49,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:33:49,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655379122] [2022-10-16 10:33:49,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:33:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:33:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:33:49,580 INFO L87 Difference]: Start difference. First operand 103 states and 111 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:49,884 INFO L93 Difference]: Finished difference Result 211 states and 223 transitions. [2022-10-16 10:33:49,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:33:49,884 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:33:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:49,886 INFO L225 Difference]: With dead ends: 211 [2022-10-16 10:33:49,886 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:33:49,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:33:49,888 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 190 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:49,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 222 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:33:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:33:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 137. [2022-10-16 10:33:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 122 states have (on average 1.2459016393442623) internal successors, (152), 136 states have internal predecessors, (152), 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 10:33:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2022-10-16 10:33:49,897 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 24 [2022-10-16 10:33:49,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:49,898 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2022-10-16 10:33:49,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:49,898 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2022-10-16 10:33:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:33:49,899 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:49,899 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:49,943 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 10:33:50,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:50,113 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -939616216, now seen corresponding path program 1 times [2022-10-16 10:33:50,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:50,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823401278] [2022-10-16 10:33:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:50,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823401278] [2022-10-16 10:33:50,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823401278] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448679767] [2022-10-16 10:33:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:50,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:50,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:50,603 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 10:33:50,626 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 10:33:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:50,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 10:33:50,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:50,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:33:50,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:50,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:33:50,856 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:33:50,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2022-10-16 10:33:51,017 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:33:51,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2022-10-16 10:33:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:51,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:51,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:33:51,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-10-16 10:33:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:51,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448679767] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:51,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:51,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-10-16 10:33:51,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492918930] [2022-10-16 10:33:51,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:51,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:33:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:33:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:33:51,296 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 27 states, 26 states have (on average 2.423076923076923) internal successors, (63), 27 states have internal predecessors, (63), 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 10:33:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:52,020 INFO L93 Difference]: Finished difference Result 158 states and 175 transitions. [2022-10-16 10:33:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:33:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.423076923076923) internal successors, (63), 27 states have internal predecessors, (63), 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 25 [2022-10-16 10:33:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:52,022 INFO L225 Difference]: With dead ends: 158 [2022-10-16 10:33:52,022 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 10:33:52,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=1256, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 10:33:52,024 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:52,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 288 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:33:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 10:33:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 136. [2022-10-16 10:33:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 122 states have (on average 1.221311475409836) internal successors, (149), 135 states have internal predecessors, (149), 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 10:33:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2022-10-16 10:33:52,033 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 25 [2022-10-16 10:33:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:52,033 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2022-10-16 10:33:52,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.423076923076923) internal successors, (63), 27 states have internal predecessors, (63), 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 10:33:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2022-10-16 10:33:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:33:52,035 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:52,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:52,076 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 10:33:52,249 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,SelfDestructingSolverStorable12 [2022-10-16 10:33:52,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:52,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1915178996, now seen corresponding path program 1 times [2022-10-16 10:33:52,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:52,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219465957] [2022-10-16 10:33:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:53,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:53,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219465957] [2022-10-16 10:33:53,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219465957] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:53,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19905794] [2022-10-16 10:33:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:53,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:53,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:53,080 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 10:33:53,096 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 10:33:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:53,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 10:33:53,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:53,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:33:53,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:33:53,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:53,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:33:53,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:33:53,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:33:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:53,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:54,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19905794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:54,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:54,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2022-10-16 10:33:54,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190295327] [2022-10-16 10:33:54,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:54,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 10:33:54,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:54,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 10:33:54,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:33:54,514 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 32 states, 31 states have (on average 2.870967741935484) internal successors, (89), 32 states have internal predecessors, (89), 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 10:33:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:55,523 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2022-10-16 10:33:55,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:33:55,523 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.870967741935484) internal successors, (89), 32 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:33:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:55,525 INFO L225 Difference]: With dead ends: 239 [2022-10-16 10:33:55,525 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 10:33:55,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=281, Invalid=1359, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 10:33:55,527 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 526 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 261 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:55,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 315 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 687 Invalid, 0 Unknown, 261 Unchecked, 0.6s Time] [2022-10-16 10:33:55,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 10:33:55,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 145. [2022-10-16 10:33:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 131 states have (on average 1.213740458015267) internal successors, (159), 144 states have internal predecessors, (159), 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 10:33:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2022-10-16 10:33:55,537 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 33 [2022-10-16 10:33:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:55,538 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2022-10-16 10:33:55,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.870967741935484) internal successors, (89), 32 states have internal predecessors, (89), 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 10:33:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2022-10-16 10:33:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:33:55,539 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:55,539 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:55,577 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 10:33:55,753 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,SelfDestructingSolverStorable13 [2022-10-16 10:33:55,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:55,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1531687013, now seen corresponding path program 1 times [2022-10-16 10:33:55,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:55,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144662349] [2022-10-16 10:33:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:55,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:56,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144662349] [2022-10-16 10:33:56,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144662349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:33:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155393525] [2022-10-16 10:33:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:56,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:56,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:56,421 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:33:56,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:33:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:56,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 10:33:56,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:56,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:33:56,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:56,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:33:56,648 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:33:56,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2022-10-16 10:33:56,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:56,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:56,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:56,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:33:56,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:33:56,887 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:33:56,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 53 [2022-10-16 10:33:57,094 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:33:57,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 17 [2022-10-16 10:33:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:57,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:33:57,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:33:57,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-10-16 10:33:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:33:57,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155393525] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:33:57,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:33:57,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2022-10-16 10:33:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150534857] [2022-10-16 10:33:57,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:33:57,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 10:33:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:57,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 10:33:57,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1265, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 10:33:57,484 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 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 10:33:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:58,811 INFO L93 Difference]: Finished difference Result 201 states and 222 transitions. [2022-10-16 10:33:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 10:33:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:33:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:58,813 INFO L225 Difference]: With dead ends: 201 [2022-10-16 10:33:58,813 INFO L226 Difference]: Without dead ends: 200 [2022-10-16 10:33:58,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=425, Invalid=2437, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 10:33:58,819 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 120 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:58,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 405 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:33:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-16 10:33:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 169. [2022-10-16 10:33:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 155 states have (on average 1.206451612903226) internal successors, (187), 168 states have internal predecessors, (187), 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 10:33:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 187 transitions. [2022-10-16 10:33:58,833 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 187 transitions. Word has length 33 [2022-10-16 10:33:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 187 transitions. [2022-10-16 10:33:58,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 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 10:33:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 187 transitions. [2022-10-16 10:33:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:33:58,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:58,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:58,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:33:59,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:33:59,054 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:59,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:59,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2116286392, now seen corresponding path program 1 times [2022-10-16 10:33:59,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:59,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822080060] [2022-10-16 10:33:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:59,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:59,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:33:59,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234242128] [2022-10-16 10:33:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:59,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:59,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:59,085 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:33:59,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:33:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:59,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:33:59,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:33:59,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:59,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:59,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822080060] [2022-10-16 10:33:59,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:33:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234242128] [2022-10-16 10:33:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234242128] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:59,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:59,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:33:59,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379167834] [2022-10-16 10:33:59,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:59,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:59,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:59,180 INFO L87 Difference]: Start difference. First operand 169 states and 187 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:59,257 INFO L93 Difference]: Finished difference Result 183 states and 203 transitions. [2022-10-16 10:33:59,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:33:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 10:33:59,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:59,260 INFO L225 Difference]: With dead ends: 183 [2022-10-16 10:33:59,260 INFO L226 Difference]: Without dead ends: 182 [2022-10-16 10:33:59,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 10:33:59,261 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:59,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 95 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-16 10:33:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-10-16 10:33:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 165 states have (on average 1.1939393939393939) internal successors, (197), 178 states have internal predecessors, (197), 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 10:33:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 197 transitions. [2022-10-16 10:33:59,274 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 197 transitions. Word has length 34 [2022-10-16 10:33:59,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:59,275 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 197 transitions. [2022-10-16 10:33:59,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 197 transitions. [2022-10-16 10:33:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 10:33:59,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:59,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:59,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:33:59,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:33:59,490 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:59,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1180368865, now seen corresponding path program 1 times [2022-10-16 10:33:59,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727683880] [2022-10-16 10:33:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:59,507 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:33:59,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794446069] [2022-10-16 10:33:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:59,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:33:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:33:59,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:33:59,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:33:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:59,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:33:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:33:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:33:59,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:33:59,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:59,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727683880] [2022-10-16 10:33:59,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:33:59,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794446069] [2022-10-16 10:33:59,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794446069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:33:59,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:33:59,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:33:59,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996904846] [2022-10-16 10:33:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:33:59,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:33:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:33:59,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:33:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:33:59,612 INFO L87 Difference]: Start difference. First operand 179 states and 197 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:33:59,682 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2022-10-16 10:33:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:33:59,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 10:33:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:33:59,684 INFO L225 Difference]: With dead ends: 179 [2022-10-16 10:33:59,684 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 10:33:59,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 10:33:59,686 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 17 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:33:59,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:33:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 10:33:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-10-16 10:33:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 165 states have (on average 1.1575757575757575) internal successors, (191), 175 states have internal predecessors, (191), 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 10:33:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 191 transitions. [2022-10-16 10:33:59,699 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 191 transitions. Word has length 35 [2022-10-16 10:33:59,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:33:59,699 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 191 transitions. [2022-10-16 10:33:59,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:33:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 191 transitions. [2022-10-16 10:33:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:33:59,700 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:33:59,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:33:59,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:33:59,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:33:59,915 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:33:59,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:33:59,915 INFO L85 PathProgramCache]: Analyzing trace with hash -751810406, now seen corresponding path program 1 times [2022-10-16 10:33:59,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:33:59,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790990571] [2022-10-16 10:33:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:33:59,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:33:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:33:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:33:59,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:33:59,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790990571] [2022-10-16 10:33:59,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790990571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:34:00,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929822309] [2022-10-16 10:34:00,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:00,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:00,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:00,001 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:00,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:34:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:00,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:34:00,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:34:00,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:34:00,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929822309] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:34:00,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:34:00,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:34:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778270479] [2022-10-16 10:34:00,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:34:00,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:34:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:34:00,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:34:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:34:00,148 INFO L87 Difference]: Start difference. First operand 176 states and 191 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:34:00,339 INFO L93 Difference]: Finished difference Result 211 states and 230 transitions. [2022-10-16 10:34:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:34:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 10:34:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:34:00,341 INFO L225 Difference]: With dead ends: 211 [2022-10-16 10:34:00,341 INFO L226 Difference]: Without dead ends: 210 [2022-10-16 10:34:00,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:34:00,342 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 92 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:34:00,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 142 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:34:00,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-10-16 10:34:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 200. [2022-10-16 10:34:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 189 states have (on average 1.1693121693121693) internal successors, (221), 199 states have internal predecessors, (221), 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 10:34:00,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 221 transitions. [2022-10-16 10:34:00,355 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 221 transitions. Word has length 36 [2022-10-16 10:34:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:34:00,355 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 221 transitions. [2022-10-16 10:34:00,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 221 transitions. [2022-10-16 10:34:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:34:00,356 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:34:00,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:34:00,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:34:00,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:34:00,571 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:34:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:34:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1621254939, now seen corresponding path program 1 times [2022-10-16 10:34:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:34:00,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891629217] [2022-10-16 10:34:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:34:00,584 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:34:00,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91031321] [2022-10-16 10:34:00,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:00,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:00,586 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:00,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:34:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:00,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:34:00,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:34:00,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:00,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:34:00,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:34:00,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891629217] [2022-10-16 10:34:00,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:34:00,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91031321] [2022-10-16 10:34:00,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91031321] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:34:00,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:34:00,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:34:00,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895997577] [2022-10-16 10:34:00,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:34:00,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:34:00,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:34:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:34:00,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:34:00,859 INFO L87 Difference]: Start difference. First operand 200 states and 221 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:34:01,080 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2022-10-16 10:34:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:34:01,081 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 10:34:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:34:01,082 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:34:01,082 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 10:34:01,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-16 10:34:01,084 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 119 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:34:01,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 148 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:34:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 10:34:01,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2022-10-16 10:34:01,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 150 states have (on average 1.18) internal successors, (177), 160 states have internal predecessors, (177), 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 10:34:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 177 transitions. [2022-10-16 10:34:01,094 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 177 transitions. Word has length 39 [2022-10-16 10:34:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:34:01,094 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 177 transitions. [2022-10-16 10:34:01,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 177 transitions. [2022-10-16 10:34:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:34:01,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:34:01,095 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 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 10:34:01,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:34:01,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:01,311 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:34:01,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:34:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -658583031, now seen corresponding path program 1 times [2022-10-16 10:34:01,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:34:01,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068936031] [2022-10-16 10:34:01,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:01,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:34:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:34:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:34:01,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068936031] [2022-10-16 10:34:01,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068936031] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:34:01,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930807400] [2022-10-16 10:34:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:01,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:01,516 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:01,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:34:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:01,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:34:01,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:34:01,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:34:01,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930807400] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:34:01,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:34:01,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:34:01,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867029825] [2022-10-16 10:34:01,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:34:01,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:34:01,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:34:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:34:01,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:34:01,900 INFO L87 Difference]: Start difference. First operand 161 states and 177 transitions. Second operand has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:34:02,362 INFO L93 Difference]: Finished difference Result 306 states and 332 transitions. [2022-10-16 10:34:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:34:02,363 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 10:34:02,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:34:02,364 INFO L225 Difference]: With dead ends: 306 [2022-10-16 10:34:02,364 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 10:34:02,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 70 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:34:02,366 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 276 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:34:02,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 191 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:34:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 10:34:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2022-10-16 10:34:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 200 states have (on average 1.16) internal successors, (232), 210 states have internal predecessors, (232), 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 10:34:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 232 transitions. [2022-10-16 10:34:02,379 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 232 transitions. Word has length 44 [2022-10-16 10:34:02,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:34:02,380 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 232 transitions. [2022-10-16 10:34:02,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:34:02,380 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 232 transitions. [2022-10-16 10:34:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:34:02,381 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:34:02,381 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:34:02,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:34:02,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:02,596 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:34:02,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:34:02,597 INFO L85 PathProgramCache]: Analyzing trace with hash 988692554, now seen corresponding path program 2 times [2022-10-16 10:34:02,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:34:02,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11412696] [2022-10-16 10:34:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:02,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:34:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:34:02,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:34:02,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11412696] [2022-10-16 10:34:02,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11412696] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:34:02,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991554177] [2022-10-16 10:34:02,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:34:02,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:02,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:02,755 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:02,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:34:02,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:34:02,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:34:02,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:34:02,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 10:34:02,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 10:34:02,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991554177] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:34:02,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:34:02,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:34:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727856145] [2022-10-16 10:34:02,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:34:02,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:34:02,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:34:02,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:34:02,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:34:02,959 INFO L87 Difference]: Start difference. First operand 211 states and 232 transitions. Second operand has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 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 10:34:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:34:03,258 INFO L93 Difference]: Finished difference Result 216 states and 237 transitions. [2022-10-16 10:34:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:34:03,263 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 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 45 [2022-10-16 10:34:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:34:03,265 INFO L225 Difference]: With dead ends: 216 [2022-10-16 10:34:03,266 INFO L226 Difference]: Without dead ends: 215 [2022-10-16 10:34:03,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:34:03,270 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 157 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:34:03,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 93 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:34:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-10-16 10:34:03,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 210. [2022-10-16 10:34:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 200 states have (on average 1.145) internal successors, (229), 209 states have internal predecessors, (229), 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 10:34:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 229 transitions. [2022-10-16 10:34:03,283 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 229 transitions. Word has length 45 [2022-10-16 10:34:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:34:03,284 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 229 transitions. [2022-10-16 10:34:03,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 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 10:34:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 229 transitions. [2022-10-16 10:34:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:34:03,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:34:03,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:34:03,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:34:03,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:03,502 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:34:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:34:03,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1630827453, now seen corresponding path program 1 times [2022-10-16 10:34:03,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:34:03,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771069287] [2022-10-16 10:34:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:34:03,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:34:03,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965519646] [2022-10-16 10:34:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:03,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:03,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:03,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:34:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:03,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:34:03,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:34:03,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:34:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:34:03,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771069287] [2022-10-16 10:34:03,722 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:34:03,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965519646] [2022-10-16 10:34:03,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965519646] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:34:03,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:34:03,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:34:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161016437] [2022-10-16 10:34:03,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:34:03,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:34:03,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:34:03,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:34:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:34:03,725 INFO L87 Difference]: Start difference. First operand 210 states and 229 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 10:34:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:34:04,051 INFO L93 Difference]: Finished difference Result 282 states and 305 transitions. [2022-10-16 10:34:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:34:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 48 [2022-10-16 10:34:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:34:04,053 INFO L225 Difference]: With dead ends: 282 [2022-10-16 10:34:04,053 INFO L226 Difference]: Without dead ends: 212 [2022-10-16 10:34:04,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:34:04,055 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 208 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:34:04,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 98 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:34:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-10-16 10:34:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2022-10-16 10:34:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 200 states have (on average 1.135) internal successors, (227), 209 states have internal predecessors, (227), 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 10:34:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 227 transitions. [2022-10-16 10:34:04,068 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 227 transitions. Word has length 48 [2022-10-16 10:34:04,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:34:04,069 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 227 transitions. [2022-10-16 10:34:04,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 10:34:04,069 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 227 transitions. [2022-10-16 10:34:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 10:34:04,070 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:34:04,070 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 10:34:04,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:34:04,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:04,286 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:34:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:34:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash -334115477, now seen corresponding path program 2 times [2022-10-16 10:34:04,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:34:04,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125092711] [2022-10-16 10:34:04,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:34:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:34:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:34:06,626 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 10:34:06,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:34:06,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125092711] [2022-10-16 10:34:06,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125092711] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:34:06,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759711017] [2022-10-16 10:34:06,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:34:06,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:34:06,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:34:06,628 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:34:06,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:34:06,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:34:06,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:34:06,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-16 10:34:06,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:34:06,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:34:06,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:34:06,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:34:06,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:06,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2022-10-16 10:34:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:07,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-10-16 10:34:07,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:07,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-16 10:34:08,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:34:08,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:08,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:34:08,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:34:08,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-10-16 10:34:08,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 23 [2022-10-16 10:34:08,693 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 10:34:08,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:34:51,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2219 treesize of output 2213 [2022-10-16 10:34:51,728 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:34:51,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 407 treesize of output 403 [2022-10-16 10:35:03,600 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 10:35:03,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759711017] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:03,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:35:03,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 61 [2022-10-16 10:35:03,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034799965] [2022-10-16 10:35:03,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:03,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-10-16 10:35:03,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-10-16 10:35:03,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=3417, Unknown=17, NotChecked=0, Total=3782 [2022-10-16 10:35:03,603 INFO L87 Difference]: Start difference. First operand 210 states and 227 transitions. Second operand has 62 states, 61 states have (on average 2.442622950819672) internal successors, (149), 62 states have internal predecessors, (149), 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 10:35:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:18,731 INFO L93 Difference]: Finished difference Result 305 states and 325 transitions. [2022-10-16 10:35:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 10:35:18,732 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.442622950819672) internal successors, (149), 62 states have internal predecessors, (149), 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 53 [2022-10-16 10:35:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:18,734 INFO L225 Difference]: With dead ends: 305 [2022-10-16 10:35:18,734 INFO L226 Difference]: Without dead ends: 304 [2022-10-16 10:35:18,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 56.9s TimeCoverageRelationStatistics Valid=582, Invalid=5716, Unknown=22, NotChecked=0, Total=6320 [2022-10-16 10:35:18,737 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 401 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1330 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:18,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 511 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1219 Invalid, 0 Unknown, 1330 Unchecked, 1.5s Time] [2022-10-16 10:35:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-10-16 10:35:18,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 234. [2022-10-16 10:35:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 224 states have (on average 1.125) internal successors, (252), 233 states have internal predecessors, (252), 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 10:35:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 252 transitions. [2022-10-16 10:35:18,752 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 252 transitions. Word has length 53 [2022-10-16 10:35:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:18,753 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 252 transitions. [2022-10-16 10:35:18,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.442622950819672) internal successors, (149), 62 states have internal predecessors, (149), 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 10:35:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 252 transitions. [2022-10-16 10:35:18,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 10:35:18,754 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:18,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-10-16 10:35:18,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:18,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:18,969 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1767645095, now seen corresponding path program 1 times [2022-10-16 10:35:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:18,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836617178] [2022-10-16 10:35:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836617178] [2022-10-16 10:35:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836617178] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:35:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420096698] [2022-10-16 10:35:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:21,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:21,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:21,378 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:21,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 10:35:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:21,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-16 10:35:21,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:21,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:35:21,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:21,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:21,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:21,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2022-10-16 10:35:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:22,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:22,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-10-16 10:35:22,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:22,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-16 10:35:23,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:23,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:23,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:23,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-10-16 10:35:23,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 23 [2022-10-16 10:35:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:24,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:10,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1019 treesize of output 1013 [2022-10-16 10:36:10,591 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:36:10,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 451 treesize of output 447 [2022-10-16 10:36:11,747 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:11,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420096698] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:11,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:36:11,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 60 [2022-10-16 10:36:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074645682] [2022-10-16 10:36:11,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:11,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-10-16 10:36:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-10-16 10:36:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=3318, Unknown=19, NotChecked=0, Total=3660 [2022-10-16 10:36:11,751 INFO L87 Difference]: Start difference. First operand 234 states and 252 transitions. Second operand has 61 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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 10:36:40,688 WARN L233 SmtUtils]: Spent 12.26s on a formula simplification. DAG size of input: 70 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:37:30,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:30,085 INFO L93 Difference]: Finished difference Result 329 states and 351 transitions. [2022-10-16 10:37:30,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-16 10:37:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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 54 [2022-10-16 10:37:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:30,088 INFO L225 Difference]: With dead ends: 329 [2022-10-16 10:37:30,089 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 10:37:30,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2662 ImplicationChecksByTransitivity, 124.3s TimeCoverageRelationStatistics Valid=850, Invalid=8422, Unknown=40, NotChecked=0, Total=9312 [2022-10-16 10:37:30,093 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 408 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1374 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:30,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 505 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1241 Invalid, 0 Unknown, 1374 Unchecked, 1.5s Time] [2022-10-16 10:37:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 10:37:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 259. [2022-10-16 10:37:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 249 states have (on average 1.1204819277108433) internal successors, (279), 258 states have internal predecessors, (279), 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 10:37:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 279 transitions. [2022-10-16 10:37:30,114 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 279 transitions. Word has length 54 [2022-10-16 10:37:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:30,114 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 279 transitions. [2022-10-16 10:37:30,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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 10:37:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 279 transitions. [2022-10-16 10:37:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 10:37:30,115 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:30,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:30,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:30,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:30,332 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:30,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash 635932838, now seen corresponding path program 1 times [2022-10-16 10:37:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:30,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217704565] [2022-10-16 10:37:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:30,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:30,350 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:37:30,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548404511] [2022-10-16 10:37:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:30,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:30,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:30,352 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:30,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 10:37:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:37:30,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 10:37:30,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:30,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:37:30,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:30,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:37:30,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:30,751 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:37:30,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:37:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:30,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:38,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:37:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:37:38,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:38,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217704565] [2022-10-16 10:37:38,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:37:38,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548404511] [2022-10-16 10:37:38,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548404511] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:38,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:37:38,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2022-10-16 10:37:38,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311374445] [2022-10-16 10:37:38,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:38,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 10:37:38,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:38,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 10:37:38,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=332, Unknown=5, NotChecked=0, Total=420 [2022-10-16 10:37:38,844 INFO L87 Difference]: Start difference. First operand 259 states and 279 transitions. Second operand has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 21 states have internal predecessors, (101), 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 10:37:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:39,286 INFO L93 Difference]: Finished difference Result 259 states and 279 transitions. [2022-10-16 10:37:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:37:39,287 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 21 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 10:37:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:39,288 INFO L225 Difference]: With dead ends: 259 [2022-10-16 10:37:39,288 INFO L226 Difference]: Without dead ends: 171 [2022-10-16 10:37:39,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=145, Invalid=500, Unknown=5, NotChecked=0, Total=650 [2022-10-16 10:37:39,290 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 95 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:39,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 99 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 253 Invalid, 0 Unknown, 50 Unchecked, 0.3s Time] [2022-10-16 10:37:39,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-16 10:37:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-10-16 10:37:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0838323353293413) internal successors, (181), 170 states have internal predecessors, (181), 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 10:37:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 181 transitions. [2022-10-16 10:37:39,304 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 181 transitions. Word has length 59 [2022-10-16 10:37:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:39,304 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 181 transitions. [2022-10-16 10:37:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 21 states have internal predecessors, (101), 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 10:37:39,305 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 181 transitions. [2022-10-16 10:37:39,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 10:37:39,305 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:39,305 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:39,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:39,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 10:37:39,519 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:39,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:39,520 INFO L85 PathProgramCache]: Analyzing trace with hash 487191370, now seen corresponding path program 3 times [2022-10-16 10:37:39,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:39,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111454752] [2022-10-16 10:37:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:37:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 26 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:39,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:39,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111454752] [2022-10-16 10:37:39,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111454752] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:37:39,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436247688] [2022-10-16 10:37:39,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:37:39,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:39,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:39,988 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:40,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 10:37:40,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:37:40,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:37:40,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:37:40,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:40,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:41,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436247688] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:41,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:37:41,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 10:37:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544904668] [2022-10-16 10:37:41,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:41,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 10:37:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 10:37:41,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:37:41,069 INFO L87 Difference]: Start difference. First operand 171 states and 181 transitions. Second operand has 28 states, 28 states have (on average 3.75) internal successors, (105), 28 states have internal predecessors, (105), 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 10:37:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:41,634 INFO L93 Difference]: Finished difference Result 223 states and 235 transitions. [2022-10-16 10:37:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:37:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.75) internal successors, (105), 28 states have internal predecessors, (105), 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 64 [2022-10-16 10:37:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:41,635 INFO L225 Difference]: With dead ends: 223 [2022-10-16 10:37:41,636 INFO L226 Difference]: Without dead ends: 171 [2022-10-16 10:37:41,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 104 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:37:41,637 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 162 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:41,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 112 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:37:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-16 10:37:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-10-16 10:37:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0778443113772456) internal successors, (180), 170 states have internal predecessors, (180), 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 10:37:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 180 transitions. [2022-10-16 10:37:41,651 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 180 transitions. Word has length 64 [2022-10-16 10:37:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:41,651 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 180 transitions. [2022-10-16 10:37:41,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.75) internal successors, (105), 28 states have internal predecessors, (105), 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 10:37:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 180 transitions. [2022-10-16 10:37:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 10:37:41,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:41,653 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:41,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:41,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 10:37:41,868 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:41,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1712247579, now seen corresponding path program 2 times [2022-10-16 10:37:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:41,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510452904] [2022-10-16 10:37:41,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:37:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:45,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:45,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510452904] [2022-10-16 10:37:45,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510452904] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:37:45,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304020375] [2022-10-16 10:37:45,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:37:45,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:45,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:45,033 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:45,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 10:37:45,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:37:45,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:37:45,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 61 conjunts are in the unsatisfiable core [2022-10-16 10:37:45,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:45,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:37:45,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:45,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:45,588 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:45,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2022-10-16 10:37:46,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:46,204 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:46,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 53 [2022-10-16 10:37:46,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:46,984 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:46,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 67 [2022-10-16 10:37:47,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:47,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:47,916 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:47,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 81 [2022-10-16 10:37:48,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:48,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:48,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:48,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:49,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:49,016 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:49,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 95 [2022-10-16 10:37:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:37:50,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:37:50,279 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:37:50,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 109 [2022-10-16 10:37:51,431 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:37:51,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 37 [2022-10-16 10:37:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:51,440 INFO L328 TraceCheckSpWp]: Computing backward predicates...