/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-15/array17_alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:08:51,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:08:51,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:08:51,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:08:51,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:08:51,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:08:51,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:08:51,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:08:51,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:08:51,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:08:51,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:08:51,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:08:51,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:08:51,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:08:51,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:08:51,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:08:51,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:08:51,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:08:51,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:08:51,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:08:51,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:08:51,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:08:51,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:08:51,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:08:51,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:08:51,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:08:51,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:08:51,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:08:51,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:08:51,325 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:08:51,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:08:51,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:08:51,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:08:51,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:08:51,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:08:51,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:08:51,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:08:51,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:08:51,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:08:51,328 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:08:51,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:08:51,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:08:51,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:08:51,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:08:51,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:08:51,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:08:51,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:08:51,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:08:51,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:08:51,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:08:51,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:08:51,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:08:51,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:08:51,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:08:51,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:08:51,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:08:51,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:08:51,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:08:51,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:08:51,785 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:08:51,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/array17_alloca.i [2022-10-16 17:08:51,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c387d1ed5/e66239b5d6ed4d43a89d1e1e08db649a/FLAGbefd2ef4d [2022-10-16 17:08:52,612 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:08:52,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/array17_alloca.i [2022-10-16 17:08:52,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c387d1ed5/e66239b5d6ed4d43a89d1e1e08db649a/FLAGbefd2ef4d [2022-10-16 17:08:52,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c387d1ed5/e66239b5d6ed4d43a89d1e1e08db649a [2022-10-16 17:08:52,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:08:52,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:08:52,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:08:52,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:08:52,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:08:52,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:08:52" (1/1) ... [2022-10-16 17:08:52,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cd8078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:52, skipping insertion in model container [2022-10-16 17:08:52,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:08:52" (1/1) ... [2022-10-16 17:08:52,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:08:53,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:08:53,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:08:53,383 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:08:53,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:08:53,519 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:08:53,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53 WrapperNode [2022-10-16 17:08:53,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:08:53,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:08:53,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:08:53,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:08:53,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,601 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2022-10-16 17:08:53,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:08:53,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:08:53,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:08:53,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:08:53,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:08:53,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:08:53,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:08:53,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:08:53,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (1/1) ... [2022-10-16 17:08:53,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:08:53,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:53,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:08:53,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:08:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:08:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:08:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:08:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:08:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:08:53,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:08:53,933 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:08:53,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:08:54,154 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:08:54,161 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:08:54,162 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:08:54,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:08:54 BoogieIcfgContainer [2022-10-16 17:08:54,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:08:54,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:08:54,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:08:54,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:08:54,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:08:52" (1/3) ... [2022-10-16 17:08:54,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796b8968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:08:54, skipping insertion in model container [2022-10-16 17:08:54,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:08:53" (2/3) ... [2022-10-16 17:08:54,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796b8968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:08:54, skipping insertion in model container [2022-10-16 17:08:54,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:08:54" (3/3) ... [2022-10-16 17:08:54,175 INFO L112 eAbstractionObserver]: Analyzing ICFG array17_alloca.i [2022-10-16 17:08:54,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:08:54,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 17:08:54,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:08:54,272 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;@634c7598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:08:54,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 17:08:54,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 34 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 17:08:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:08:54,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:54,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:54,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 123263761, now seen corresponding path program 1 times [2022-10-16 17:08:54,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:54,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67227769] [2022-10-16 17:08:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:54,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:54,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67227769] [2022-10-16 17:08:54,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67227769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:54,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:54,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:54,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26027794] [2022-10-16 17:08:54,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:54,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:54,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:54,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:54,698 INFO L87 Difference]: Start difference. First operand has 35 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 34 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) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:54,778 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2022-10-16 17:08:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:08:54,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 17:08:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:54,794 INFO L225 Difference]: With dead ends: 78 [2022-10-16 17:08:54,795 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 17:08:54,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:54,802 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 26 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:54,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 111 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 17:08:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2022-10-16 17:08:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.608695652173913) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-16 17:08:54,843 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 8 [2022-10-16 17:08:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:54,843 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-16 17:08:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:54,847 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-16 17:08:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:08:54,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:54,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:08:54,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:54,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash -473790640, now seen corresponding path program 1 times [2022-10-16 17:08:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:54,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013578058] [2022-10-16 17:08:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:54,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:54,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013578058] [2022-10-16 17:08:54,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013578058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:54,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:54,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228207690] [2022-10-16 17:08:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:54,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:54,974 INFO L87 Difference]: Start difference. First operand 33 states and 37 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 17:08:54,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:54,999 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-16 17:08:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:55,000 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 17:08:55,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:55,001 INFO L225 Difference]: With dead ends: 33 [2022-10-16 17:08:55,001 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 17:08:55,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:55,004 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:55,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 59 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 17:08:55,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 17:08:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.565217391304348) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-10-16 17:08:55,012 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 9 [2022-10-16 17:08:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:55,012 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-10-16 17:08:55,012 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 17:08:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-10-16 17:08:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:08:55,013 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:55,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:55,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:08:55,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:55,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1802655327, now seen corresponding path program 1 times [2022-10-16 17:08:55,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:55,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863606] [2022-10-16 17:08:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:55,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:55,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:55,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863606] [2022-10-16 17:08:55,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:55,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:55,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:08:55,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294651217] [2022-10-16 17:08:55,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:55,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:55,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:55,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:55,096 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:55,127 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-10-16 17:08:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:55,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 17:08:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:55,129 INFO L225 Difference]: With dead ends: 53 [2022-10-16 17:08:55,129 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 17:08:55,129 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 17:08:55,131 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 49 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 17:08:55,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-10-16 17:08:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 31 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 17:08:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-10-16 17:08:55,140 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 10 [2022-10-16 17:08:55,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:55,140 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-10-16 17:08:55,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-10-16 17:08:55,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:08:55,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:55,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:55,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:08:55,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:55,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:55,143 INFO L85 PathProgramCache]: Analyzing trace with hash -46269518, now seen corresponding path program 1 times [2022-10-16 17:08:55,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:55,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625207721] [2022-10-16 17:08:55,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:55,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:55,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:55,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625207721] [2022-10-16 17:08:55,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625207721] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:55,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:55,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:55,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091818991] [2022-10-16 17:08:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:55,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:55,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:55,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:55,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:55,245 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) 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 17:08:55,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:55,281 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-10-16 17:08:55,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:55,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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 17:08:55,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:55,283 INFO L225 Difference]: With dead ends: 38 [2022-10-16 17:08:55,283 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:08:55,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:55,286 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:55,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 79 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:08:55,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-10-16 17:08:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-10-16 17:08:55,295 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 11 [2022-10-16 17:08:55,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:55,296 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-10-16 17:08:55,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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 17:08:55,296 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-10-16 17:08:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 17:08:55,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:55,297 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:08:55,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 269361463, now seen corresponding path program 1 times [2022-10-16 17:08:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:55,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615872879] [2022-10-16 17:08:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:55,477 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 17:08:55,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615872879] [2022-10-16 17:08:55,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615872879] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:55,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148604257] [2022-10-16 17:08:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:55,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:55,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:55,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:08:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:55,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:08:55,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:55,624 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 17:08:55,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:08:55,682 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 17:08:55,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148604257] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:08:55,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:08:55,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 17:08:55,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935429065] [2022-10-16 17:08:55,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:08:55,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:08:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:55,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:08:55,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:08:55,689 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:55,847 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2022-10-16 17:08:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:08:55,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 17:08:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:55,852 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:08:55,855 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 17:08:55,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:08:55,859 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 94 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:55,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 213 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:08:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 17:08:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 50. [2022-10-16 17:08:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-10-16 17:08:55,888 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 14 [2022-10-16 17:08:55,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:55,891 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-10-16 17:08:55,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-10-16 17:08:55,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:08:55,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:55,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:55,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:08:56,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:56,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1158282823, now seen corresponding path program 1 times [2022-10-16 17:08:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275661090] [2022-10-16 17:08:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:56,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:56,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275661090] [2022-10-16 17:08:56,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275661090] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:56,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:56,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:08:56,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976627613] [2022-10-16 17:08:56,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:56,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:56,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:56,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:56,195 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 4 states, 4 states have (on average 4.0) 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 17:08:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:56,236 INFO L93 Difference]: Finished difference Result 98 states and 117 transitions. [2022-10-16 17:08:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) 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 17:08:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:56,239 INFO L225 Difference]: With dead ends: 98 [2022-10-16 17:08:56,240 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 17:08:56,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:56,242 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:56,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 73 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 17:08:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-10-16 17:08:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 96 transitions. [2022-10-16 17:08:56,262 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 96 transitions. Word has length 16 [2022-10-16 17:08:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:56,262 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 96 transitions. [2022-10-16 17:08:56,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) 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 17:08:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 96 transitions. [2022-10-16 17:08:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:08:56,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:56,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:56,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:08:56,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:56,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:56,266 INFO L85 PathProgramCache]: Analyzing trace with hash 147165573, now seen corresponding path program 1 times [2022-10-16 17:08:56,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:56,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494423766] [2022-10-16 17:08:56,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:56,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:56,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:56,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494423766] [2022-10-16 17:08:56,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494423766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:56,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:56,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:08:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588055628] [2022-10-16 17:08:56,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:08:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:08:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:08:56,309 INFO L87 Difference]: Start difference. First operand 79 states and 96 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 17:08:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:56,338 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-10-16 17:08:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:08:56,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 17:08:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:56,340 INFO L225 Difference]: With dead ends: 92 [2022-10-16 17:08:56,340 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 17:08:56,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:08:56,342 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:56,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 17:08:56,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 81. [2022-10-16 17:08:56,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 80 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2022-10-16 17:08:56,357 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 16 [2022-10-16 17:08:56,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:56,358 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2022-10-16 17:08:56,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 17:08:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2022-10-16 17:08:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:08:56,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:56,359 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:56,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:08:56,360 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1548499916, now seen corresponding path program 1 times [2022-10-16 17:08:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:56,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936288026] [2022-10-16 17:08:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:56,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:56,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:56,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936288026] [2022-10-16 17:08:56,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936288026] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:56,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247231222] [2022-10-16 17:08:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:56,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:56,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:56,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:56,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:08:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:56,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:08:56,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:56,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:08:56,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247231222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:56,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:08:56,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 17:08:56,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054254157] [2022-10-16 17:08:56,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:56,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:08:56,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:56,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:08:56,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:08:56,682 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:56,728 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-10-16 17:08:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:08:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:08:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:56,733 INFO L225 Difference]: With dead ends: 84 [2022-10-16 17:08:56,733 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 17:08:56,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:08:56,736 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:56,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 17:08:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 17:08:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 51 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-10-16 17:08:56,745 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 17 [2022-10-16 17:08:56,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:56,745 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-10-16 17:08:56,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-10-16 17:08:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:08:56,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:56,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:56,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:08:56,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 17:08:56,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash 267165555, now seen corresponding path program 1 times [2022-10-16 17:08:56,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:56,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126208084] [2022-10-16 17:08:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:56,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:57,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:57,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126208084] [2022-10-16 17:08:57,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126208084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:57,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:57,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:08:57,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240133459] [2022-10-16 17:08:57,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:57,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:08:57,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:57,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:08:57,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:08:57,002 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:57,019 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-10-16 17:08:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:08:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:08:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:57,020 INFO L225 Difference]: With dead ends: 52 [2022-10-16 17:08:57,021 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 17:08:57,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:08:57,022 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:57,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 17:08:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 17:08:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2022-10-16 17:08:57,031 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 17 [2022-10-16 17:08:57,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:57,031 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2022-10-16 17:08:57,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2022-10-16 17:08:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:08:57,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:57,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:57,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:08:57,033 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:57,034 INFO L85 PathProgramCache]: Analyzing trace with hash 268636238, now seen corresponding path program 1 times [2022-10-16 17:08:57,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:57,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657588564] [2022-10-16 17:08:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:57,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:57,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657588564] [2022-10-16 17:08:57,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657588564] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:57,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150534857] [2022-10-16 17:08:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:57,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:57,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:57,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:57,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:08:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:57,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:08:57,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:57,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:08:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:57,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150534857] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:08:57,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:08:57,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:08:57,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748707062] [2022-10-16 17:08:57,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:08:57,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:08:57,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:57,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:08:57,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:08:57,253 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:57,373 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2022-10-16 17:08:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:08:57,374 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:08:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:57,375 INFO L225 Difference]: With dead ends: 107 [2022-10-16 17:08:57,375 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 17:08:57,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:08:57,377 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 107 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:57,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 183 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:08:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 17:08:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 54. [2022-10-16 17:08:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.326086956521739) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-10-16 17:08:57,387 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 17 [2022-10-16 17:08:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:57,387 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-10-16 17:08:57,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-10-16 17:08:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:08:57,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:57,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:57,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:08:57,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:57,603 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:57,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:57,605 INFO L85 PathProgramCache]: Analyzing trace with hash -262211143, now seen corresponding path program 1 times [2022-10-16 17:08:57,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:57,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884476725] [2022-10-16 17:08:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:57,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:57,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:57,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884476725] [2022-10-16 17:08:57,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884476725] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:57,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029751144] [2022-10-16 17:08:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:57,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:57,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:57,677 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:57,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:08:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:57,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:08:57,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:57,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:08:57,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029751144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:57,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:08:57,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:08:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201426079] [2022-10-16 17:08:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:57,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:08:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:08:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:08:57,787 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:57,825 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2022-10-16 17:08:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:08:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 17:08:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:57,827 INFO L225 Difference]: With dead ends: 54 [2022-10-16 17:08:57,827 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 17:08:57,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:08:57,829 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:57,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 52 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 17:08:57,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 17:08:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-10-16 17:08:57,838 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 18 [2022-10-16 17:08:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:57,838 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-10-16 17:08:57,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-10-16 17:08:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:08:57,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:57,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:57,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:08:58,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:58,056 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:58,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:58,057 INFO L85 PathProgramCache]: Analyzing trace with hash -951936299, now seen corresponding path program 1 times [2022-10-16 17:08:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:58,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807158666] [2022-10-16 17:08:58,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:58,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:58,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807158666] [2022-10-16 17:08:58,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807158666] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:58,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:58,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200727767] [2022-10-16 17:08:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:58,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:58,127 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:58,162 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-10-16 17:08:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:58,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 17:08:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:58,163 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:08:58,163 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 17:08:58,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:58,168 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:58,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 63 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 17:08:58,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2022-10-16 17:08:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.26) internal successors, (63), 56 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 17:08:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2022-10-16 17:08:58,185 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 19 [2022-10-16 17:08:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:58,185 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2022-10-16 17:08:58,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2022-10-16 17:08:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:08:58,189 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:58,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:58,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:08:58,190 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -951936491, now seen corresponding path program 1 times [2022-10-16 17:08:58,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:58,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498959243] [2022-10-16 17:08:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:58,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:58,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498959243] [2022-10-16 17:08:58,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498959243] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:58,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:58,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727110410] [2022-10-16 17:08:58,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:58,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:58,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:58,260 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:58,304 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-10-16 17:08:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:58,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 17:08:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:58,308 INFO L225 Difference]: With dead ends: 61 [2022-10-16 17:08:58,308 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 17:08:58,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:58,312 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:58,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 63 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 17:08:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 17:08:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.25) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 17:08:58,334 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 19 [2022-10-16 17:08:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 17:08:58,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 17:08:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:08:58,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:58,339 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] [2022-10-16 17:08:58,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 17:08:58,340 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:58,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:58,341 INFO L85 PathProgramCache]: Analyzing trace with hash 534871730, now seen corresponding path program 1 times [2022-10-16 17:08:58,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:58,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008954641] [2022-10-16 17:08:58,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:58,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:58,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008954641] [2022-10-16 17:08:58,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008954641] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:58,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903790947] [2022-10-16 17:08:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:58,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:58,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:58,431 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:58,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:08:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:58,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:08:58,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:58,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:08:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:08:58,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903790947] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:08:58,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:08:58,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 9 [2022-10-16 17:08:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592096713] [2022-10-16 17:08:58,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:08:58,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 17:08:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:58,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 17:08:58,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:08:58,583 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 17:08:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:58,699 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-10-16 17:08:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:08:58,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 22 [2022-10-16 17:08:58,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:58,702 INFO L225 Difference]: With dead ends: 82 [2022-10-16 17:08:58,702 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 17:08:58,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:08:58,704 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:58,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 119 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:08:58,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 17:08:58,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-16 17:08:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.22) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:58,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-10-16 17:08:58,715 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 22 [2022-10-16 17:08:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:58,715 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-10-16 17:08:58,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 17:08:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-10-16 17:08:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:08:58,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:58,720 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] [2022-10-16 17:08:58,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:08:58,935 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,SelfDestructingSolverStorable13 [2022-10-16 17:08:58,936 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:58,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:58,937 INFO L85 PathProgramCache]: Analyzing trace with hash -779246062, now seen corresponding path program 1 times [2022-10-16 17:08:58,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:58,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893885424] [2022-10-16 17:08:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:58,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 17:08:59,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:59,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893885424] [2022-10-16 17:08:59,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893885424] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:59,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451659313] [2022-10-16 17:08:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:59,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:59,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:59,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:59,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:08:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:59,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:08:59,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 17:08:59,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:08:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 17:08:59,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451659313] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:08:59,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:08:59,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 17:08:59,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537887750] [2022-10-16 17:08:59,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:08:59,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:08:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:59,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:08:59,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:08:59,123 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 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 17:08:59,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:59,203 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2022-10-16 17:08:59,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:08:59,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 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 28 [2022-10-16 17:08:59,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:59,205 INFO L225 Difference]: With dead ends: 72 [2022-10-16 17:08:59,205 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 17:08:59,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:08:59,206 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:59,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 96 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 17:08:59,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2022-10-16 17:08:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 58 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 17:08:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-10-16 17:08:59,212 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 28 [2022-10-16 17:08:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:59,213 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-10-16 17:08:59,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 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 17:08:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-10-16 17:08:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 17:08:59,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:59,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:59,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:08:59,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:08:59,429 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash -221110488, now seen corresponding path program 1 times [2022-10-16 17:08:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:59,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772235978] [2022-10-16 17:08:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:59,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 17:08:59,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:59,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772235978] [2022-10-16 17:08:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772235978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:08:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:08:59,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:08:59,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759787821] [2022-10-16 17:08:59,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:08:59,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:08:59,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:08:59,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:08:59,480 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:59,502 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-10-16 17:08:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:08:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 31 [2022-10-16 17:08:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:59,503 INFO L225 Difference]: With dead ends: 59 [2022-10-16 17:08:59,503 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 17:08:59,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:08:59,504 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 10 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:59,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 53 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:08:59,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 17:08:59,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-10-16 17:08:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.18) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-10-16 17:08:59,510 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 31 [2022-10-16 17:08:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:59,510 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-10-16 17:08:59,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-10-16 17:08:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 17:08:59,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:59,512 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:59,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 17:08:59,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:08:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -221110680, now seen corresponding path program 1 times [2022-10-16 17:08:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:59,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346263160] [2022-10-16 17:08:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 17:08:59,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346263160] [2022-10-16 17:08:59,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346263160] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747868482] [2022-10-16 17:08:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:59,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:59,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:59,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:08:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:59,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:08:59,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:59,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:08:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:08:59,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747868482] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:08:59,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:08:59,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 18 [2022-10-16 17:08:59,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968345832] [2022-10-16 17:08:59,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:08:59,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:08:59,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:08:59,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:08:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:08:59,959 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:00,178 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2022-10-16 17:09:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:09:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 31 [2022-10-16 17:09:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:00,179 INFO L225 Difference]: With dead ends: 84 [2022-10-16 17:09:00,179 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 17:09:00,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:09:00,180 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 53 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:00,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 122 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:00,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 17:09:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2022-10-16 17:09:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2022-10-16 17:09:00,186 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 31 [2022-10-16 17:09:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:00,186 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2022-10-16 17:09:00,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2022-10-16 17:09:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 17:09:00,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:00,188 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:00,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:09:00,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:00,403 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:00,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -324628505, now seen corresponding path program 1 times [2022-10-16 17:09:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:00,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588961002] [2022-10-16 17:09:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:00,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:00,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588961002] [2022-10-16 17:09:00,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588961002] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:00,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914550087] [2022-10-16 17:09:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:00,589 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:09:00,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:09:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:00,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 17:09:00,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:00,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:00,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914550087] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:00,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:00,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-10-16 17:09:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359514251] [2022-10-16 17:09:00,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:00,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:09:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:00,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:09:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:09:00,834 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:01,014 INFO L93 Difference]: Finished difference Result 261 states and 290 transitions. [2022-10-16 17:09:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:09:01,015 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 17:09:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:01,017 INFO L225 Difference]: With dead ends: 261 [2022-10-16 17:09:01,017 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 17:09:01,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:09:01,019 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 310 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:01,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 290 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 17:09:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 93. [2022-10-16 17:09:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 92 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2022-10-16 17:09:01,028 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 32 [2022-10-16 17:09:01,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:01,028 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2022-10-16 17:09:01,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2022-10-16 17:09:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:09:01,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:01,032 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:01,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 17:09:01,246 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,SelfDestructingSolverStorable17 [2022-10-16 17:09:01,246 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:01,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1258622748, now seen corresponding path program 2 times [2022-10-16 17:09:01,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:01,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114789955] [2022-10-16 17:09:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:01,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:01,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:01,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114789955] [2022-10-16 17:09:01,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114789955] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:01,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61934626] [2022-10-16 17:09:01,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:01,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:01,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:01,445 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:09:01,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:09:01,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:09:01,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:01,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:09:01,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 17:09:01,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 17:09:01,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61934626] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:01,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:01,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 17:09:01,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034243857] [2022-10-16 17:09:01,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:01,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:09:01,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:09:01,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:09:01,628 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 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 17:09:01,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:01,841 INFO L93 Difference]: Finished difference Result 162 states and 183 transitions. [2022-10-16 17:09:01,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 17:09:01,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 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 35 [2022-10-16 17:09:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:01,843 INFO L225 Difference]: With dead ends: 162 [2022-10-16 17:09:01,843 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 17:09:01,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 17:09:01,844 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 230 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:01,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 96 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 17:09:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 92. [2022-10-16 17:09:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 91 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2022-10-16 17:09:01,853 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 35 [2022-10-16 17:09:01,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:01,854 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2022-10-16 17:09:01,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 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 17:09:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2022-10-16 17:09:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:09:01,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:01,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:01,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:09:02,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:02,065 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:02,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1668967453, now seen corresponding path program 1 times [2022-10-16 17:09:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:02,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701373698] [2022-10-16 17:09:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 17:09:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:02,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701373698] [2022-10-16 17:09:02,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701373698] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:02,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:02,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528789107] [2022-10-16 17:09:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:02,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:02,115 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:02,134 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-10-16 17:09:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:02,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 38 [2022-10-16 17:09:02,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:02,135 INFO L225 Difference]: With dead ends: 92 [2022-10-16 17:09:02,135 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 17:09:02,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:02,137 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:02,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 50 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:02,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 17:09:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-16 17:09:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 90 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 17:09:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2022-10-16 17:09:02,150 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 38 [2022-10-16 17:09:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:02,151 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2022-10-16 17:09:02,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2022-10-16 17:09:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:09:02,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:02,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:02,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 17:09:02,155 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1668973411, now seen corresponding path program 1 times [2022-10-16 17:09:02,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:02,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881397826] [2022-10-16 17:09:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 17:09:02,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:02,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881397826] [2022-10-16 17:09:02,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881397826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:02,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:02,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135261404] [2022-10-16 17:09:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:02,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:02,215 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:02,236 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-10-16 17:09:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:02,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 38 [2022-10-16 17:09:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:02,238 INFO L225 Difference]: With dead ends: 92 [2022-10-16 17:09:02,238 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 17:09:02,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:02,239 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:02,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 17:09:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2022-10-16 17:09:02,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 1.1363636363636365) internal successors, (100), 89 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 17:09:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2022-10-16 17:09:02,248 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 38 [2022-10-16 17:09:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:02,249 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2022-10-16 17:09:02,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2022-10-16 17:09:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 17:09:02,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:02,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:02,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 17:09:02,251 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash -819821067, now seen corresponding path program 1 times [2022-10-16 17:09:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:02,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544338735] [2022-10-16 17:09:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:09:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:02,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544338735] [2022-10-16 17:09:02,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544338735] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620454696] [2022-10-16 17:09:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:02,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:02,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:02,367 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 17:09:02,392 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 17:09:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:02,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:09:02,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:09:02,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:09:02,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620454696] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:02,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:02,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 17:09:02,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619791531] [2022-10-16 17:09:02,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:02,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:09:02,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:02,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:09:02,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:09:02,511 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:02,622 INFO L93 Difference]: Finished difference Result 115 states and 130 transitions. [2022-10-16 17:09:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:09:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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 43 [2022-10-16 17:09:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:02,624 INFO L225 Difference]: With dead ends: 115 [2022-10-16 17:09:02,624 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 17:09:02,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:09:02,625 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:02,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 104 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:02,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 17:09:02,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2022-10-16 17:09:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2022-10-16 17:09:02,635 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 43 [2022-10-16 17:09:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:02,635 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2022-10-16 17:09:02,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2022-10-16 17:09:02,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 17:09:02,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:02,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:02,672 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 17:09:02,849 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,SelfDestructingSolverStorable21 [2022-10-16 17:09:02,850 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:02,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:02,851 INFO L85 PathProgramCache]: Analyzing trace with hash 406389115, now seen corresponding path program 2 times [2022-10-16 17:09:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:02,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719023197] [2022-10-16 17:09:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:02,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 17:09:02,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:02,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719023197] [2022-10-16 17:09:02,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719023197] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:02,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468205922] [2022-10-16 17:09:02,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:02,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:02,952 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 17:09:02,978 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 17:09:03,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:09:03,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:03,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:09:03,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-16 17:09:03,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-16 17:09:03,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468205922] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:03,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:03,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-10-16 17:09:03,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341872654] [2022-10-16 17:09:03,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:09:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:09:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:09:03,142 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:03,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:03,268 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2022-10-16 17:09:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:09:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 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 43 [2022-10-16 17:09:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:03,270 INFO L225 Difference]: With dead ends: 119 [2022-10-16 17:09:03,270 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 17:09:03,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:09:03,271 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 41 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:03,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 48 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 17:09:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-16 17:09:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0147058823529411) internal successors, (69), 68 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2022-10-16 17:09:03,276 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 43 [2022-10-16 17:09:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:03,277 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2022-10-16 17:09:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2022-10-16 17:09:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 17:09:03,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:03,278 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:03,318 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 17:09:03,494 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,SelfDestructingSolverStorable22 [2022-10-16 17:09:03,495 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash 172944971, now seen corresponding path program 2 times [2022-10-16 17:09:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290659247] [2022-10-16 17:09:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:04,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:04,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290659247] [2022-10-16 17:09:04,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290659247] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:04,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785488232] [2022-10-16 17:09:04,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:04,018 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 17:09:04,042 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 17:09:04,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:09:04,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:04,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:09:04,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:04,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:04,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785488232] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:04,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:04,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-10-16 17:09:04,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369822028] [2022-10-16 17:09:04,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:04,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 17:09:04,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:04,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 17:09:04,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 17:09:04,746 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:05,250 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2022-10-16 17:09:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 17:09:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 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 68 [2022-10-16 17:09:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:05,253 INFO L225 Difference]: With dead ends: 143 [2022-10-16 17:09:05,253 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 17:09:05,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 17:09:05,258 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 182 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:05,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 113 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 17:09:05,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2022-10-16 17:09:05,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:05,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2022-10-16 17:09:05,266 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 68 [2022-10-16 17:09:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:05,266 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2022-10-16 17:09:05,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:05,267 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2022-10-16 17:09:05,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-16 17:09:05,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:05,268 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:05,305 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 17:09:05,482 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,SelfDestructingSolverStorable23 [2022-10-16 17:09:05,483 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1773173485, now seen corresponding path program 3 times [2022-10-16 17:09:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:05,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500848160] [2022-10-16 17:09:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:07,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500848160] [2022-10-16 17:09:07,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500848160] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:07,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526535737] [2022-10-16 17:09:07,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:09:07,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:07,770 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 17:09:07,773 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 17:09:08,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-10-16 17:09:08,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:08,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 17:09:08,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:09,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:11,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526535737] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:11,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:11,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-10-16 17:09:11,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247798950] [2022-10-16 17:09:11,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:11,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-10-16 17:09:11,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-10-16 17:09:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-10-16 17:09:11,372 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:13,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:13,202 INFO L93 Difference]: Finished difference Result 287 states and 310 transitions. [2022-10-16 17:09:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 17:09:13,203 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 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 140 [2022-10-16 17:09:13,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:13,205 INFO L225 Difference]: With dead ends: 287 [2022-10-16 17:09:13,205 INFO L226 Difference]: Without dead ends: 286 [2022-10-16 17:09:13,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-10-16 17:09:13,213 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 430 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:13,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 213 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:09:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-10-16 17:09:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 285. [2022-10-16 17:09:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.0035211267605635) internal successors, (285), 284 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 285 transitions. [2022-10-16 17:09:13,231 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 285 transitions. Word has length 140 [2022-10-16 17:09:13,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:13,232 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 285 transitions. [2022-10-16 17:09:13,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 285 transitions. [2022-10-16 17:09:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-10-16 17:09:13,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:13,236 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:13,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 17:09:13,450 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,SelfDestructingSolverStorable24 [2022-10-16 17:09:13,451 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2089556643, now seen corresponding path program 4 times [2022-10-16 17:09:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:13,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990898452] [2022-10-16 17:09:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990898452] [2022-10-16 17:09:20,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990898452] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850109795] [2022-10-16 17:09:20,679 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:09:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:20,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:20,680 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 17:09:20,681 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 17:09:20,888 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:09:20,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:20,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 95 conjunts are in the unsatisfiable core [2022-10-16 17:09:20,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:21,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:29,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850109795] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:29,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:29,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-10-16 17:09:29,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546534353] [2022-10-16 17:09:29,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:29,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-10-16 17:09:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:29,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-10-16 17:09:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-10-16 17:09:29,192 INFO L87 Difference]: Start difference. First operand 285 states and 285 transitions. Second operand has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:36,571 INFO L93 Difference]: Finished difference Result 575 states and 622 transitions. [2022-10-16 17:09:36,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-10-16 17:09:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 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 284 [2022-10-16 17:09:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:36,576 INFO L225 Difference]: With dead ends: 575 [2022-10-16 17:09:36,576 INFO L226 Difference]: Without dead ends: 574 [2022-10-16 17:09:36,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-10-16 17:09:36,587 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1050 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:36,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 349 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:09:36,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-10-16 17:09:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2022-10-16 17:09:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.0017482517482517) internal successors, (573), 572 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 573 transitions. [2022-10-16 17:09:36,611 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 573 transitions. Word has length 284 [2022-10-16 17:09:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:36,612 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 573 transitions. [2022-10-16 17:09:36,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 573 transitions. [2022-10-16 17:09:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2022-10-16 17:09:36,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:36,625 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:36,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-16 17:09:36,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:36,840 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1177360957, now seen corresponding path program 5 times [2022-10-16 17:09:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:36,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233734792] [2022-10-16 17:09:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:10:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 26414 backedges. 0 proven. 26414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:02,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:10:02,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233734792] [2022-10-16 17:10:02,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233734792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:10:02,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478530351] [2022-10-16 17:10:02,798 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:10:02,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:02,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:10:02,804 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 17:10:02,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process