/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/indp3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:35:25,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:35:25,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:35:25,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:35:25,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:35:25,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:35:25,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:35:25,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:35:25,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:35:25,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:35:25,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:35:25,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:35:25,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:35:25,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:35:25,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:35:25,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:35:25,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:35:25,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:35:25,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:35:25,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:35:25,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:35:25,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:35:25,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:35:25,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:35:25,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:35:25,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:35:25,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:35:25,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:35:25,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:35:25,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:35:25,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:35:25,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:35:25,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:35:25,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:35:25,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:35:25,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:35:25,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:35:25,756 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:35:25,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:35:25,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:35:25,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:35:25,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:35:25,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:35:25,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:35:25,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:35:25,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:35:25,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:35:25,759 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:35:25,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:35:25,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:35:25,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:35:25,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:35:25,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:35:25,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:35:25,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:35:25,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:35:25,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:35:25,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:35:25,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:35:25,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:35:25,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:35:25,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:35:25,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:35:26,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:35:26,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:35:26,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:35:26,217 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:35:26,217 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:35:26,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp3f.c [2022-10-16 10:35:26,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd5fd518/29b177d9e675407e8cbcbd1e43929304/FLAG44727dc56 [2022-10-16 10:35:26,856 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:35:26,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp3f.c [2022-10-16 10:35:26,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd5fd518/29b177d9e675407e8cbcbd1e43929304/FLAG44727dc56 [2022-10-16 10:35:27,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd5fd518/29b177d9e675407e8cbcbd1e43929304 [2022-10-16 10:35:27,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:35:27,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:35:27,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:35:27,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:35:27,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:35:27,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb049f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27, skipping insertion in model container [2022-10-16 10:35:27,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:35:27,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:35:27,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp3f.c[589,602] [2022-10-16 10:35:27,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:35:27,477 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:35:27,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp3f.c[589,602] [2022-10-16 10:35:27,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:35:27,520 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:35:27,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27 WrapperNode [2022-10-16 10:35:27,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:35:27,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:35:27,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:35:27,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:35:27,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,565 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2022-10-16 10:35:27,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:35:27,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:35:27,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:35:27,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:35:27,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:35:27,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:35:27,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:35:27,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:35:27,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (1/1) ... [2022-10-16 10:35:27,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:35:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:27,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:35:27,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:35:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:35:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:35:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:35:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:35:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:35:27,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:35:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:35:27,789 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:35:27,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:35:28,166 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:35:28,175 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:35:28,175 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 10:35:28,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:35:28 BoogieIcfgContainer [2022-10-16 10:35:28,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:35:28,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:35:28,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:35:28,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:35:28,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:35:27" (1/3) ... [2022-10-16 10:35:28,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ae2989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:35:28, skipping insertion in model container [2022-10-16 10:35:28,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:35:27" (2/3) ... [2022-10-16 10:35:28,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ae2989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:35:28, skipping insertion in model container [2022-10-16 10:35:28,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:35:28" (3/3) ... [2022-10-16 10:35:28,189 INFO L112 eAbstractionObserver]: Analyzing ICFG indp3f.c [2022-10-16 10:35:28,213 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:35:28,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 10:35:28,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:35:28,305 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;@4f4dfb83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:35:28,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 10:35:28,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 77 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:28,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:35:28,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:28,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:28,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845353, now seen corresponding path program 1 times [2022-10-16 10:35:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504935029] [2022-10-16 10:35:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:28,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:28,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:28,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504935029] [2022-10-16 10:35:28,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504935029] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:28,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:28,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:35:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860767630] [2022-10-16 10:35:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:28,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:35:28,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:35:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:35:28,592 INFO L87 Difference]: Start difference. First operand has 78 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 77 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:28,617 INFO L93 Difference]: Finished difference Result 149 states and 174 transitions. [2022-10-16 10:35:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:35:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:35:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:28,630 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:35:28,630 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:35:28,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:35:28,639 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:28,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:35:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:35:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 10:35:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.574468085106383) internal successors, (74), 69 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:28,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2022-10-16 10:35:28,684 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 7 [2022-10-16 10:35:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:28,685 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2022-10-16 10:35:28,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2022-10-16 10:35:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:35:28,686 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:28,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:28,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:35:28,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904935, now seen corresponding path program 1 times [2022-10-16 10:35:28,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:28,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372647242] [2022-10-16 10:35:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:28,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:28,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372647242] [2022-10-16 10:35:28,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372647242] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:28,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:28,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:35:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755812134] [2022-10-16 10:35:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:28,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:35:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:35:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:35:28,831 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:29,102 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2022-10-16 10:35:29,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:35:29,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:35:29,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:29,105 INFO L225 Difference]: With dead ends: 135 [2022-10-16 10:35:29,106 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:35:29,106 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 10:35:29,108 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 64 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:35:29,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 80. [2022-10-16 10:35:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2022-10-16 10:35:29,130 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 7 [2022-10-16 10:35:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:29,131 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2022-10-16 10:35:29,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,132 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2022-10-16 10:35:29,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:35:29,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:29,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:29,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:35:29,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:29,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1268817215, now seen corresponding path program 1 times [2022-10-16 10:35:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:29,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777897964] [2022-10-16 10:35:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:29,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777897964] [2022-10-16 10:35:29,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777897964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:29,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:29,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:35:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573344753] [2022-10-16 10:35:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:29,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:29,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:29,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:29,314 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:29,468 INFO L93 Difference]: Finished difference Result 176 states and 187 transitions. [2022-10-16 10:35:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:29,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:35:29,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:29,474 INFO L225 Difference]: With dead ends: 176 [2022-10-16 10:35:29,474 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:35:29,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:29,480 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 173 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:29,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 61 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:29,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:35:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 83. [2022-10-16 10:35:29,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.45) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-10-16 10:35:29,508 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 9 [2022-10-16 10:35:29,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:29,509 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-10-16 10:35:29,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-10-16 10:35:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:35:29,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:29,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:29,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:35:29,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:29,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash -816393289, now seen corresponding path program 1 times [2022-10-16 10:35:29,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:29,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679624626] [2022-10-16 10:35:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:29,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:29,550 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:29,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389863824] [2022-10-16 10:35:29,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:29,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:29,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:29,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:29,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:35:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:29,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:29,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:29,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:29,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:29,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679624626] [2022-10-16 10:35:29,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:29,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389863824] [2022-10-16 10:35:29,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389863824] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:29,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:29,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:29,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544278384] [2022-10-16 10:35:29,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:29,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:29,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:29,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:29,706 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:29,841 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2022-10-16 10:35:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:35:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:35:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:29,843 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:35:29,843 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:35:29,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:29,845 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 43 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:29,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 105 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:35:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 86. [2022-10-16 10:35:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 85 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2022-10-16 10:35:29,856 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 14 [2022-10-16 10:35:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:29,857 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2022-10-16 10:35:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2022-10-16 10:35:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:35:29,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:29,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:29,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:30,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:30,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:30,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:30,076 INFO L85 PathProgramCache]: Analyzing trace with hash 461611887, now seen corresponding path program 1 times [2022-10-16 10:35:30,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:30,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253077364] [2022-10-16 10:35:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:30,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:30,093 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863303084] [2022-10-16 10:35:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:30,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:30,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:30,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:30,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:35:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:30,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:30,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:30,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:30,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:30,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253077364] [2022-10-16 10:35:30,218 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:30,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863303084] [2022-10-16 10:35:30,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863303084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:30,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:30,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763076508] [2022-10-16 10:35:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:30,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:30,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:30,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:30,225 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:30,381 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2022-10-16 10:35:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:30,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:35:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:30,383 INFO L225 Difference]: With dead ends: 121 [2022-10-16 10:35:30,383 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 10:35:30,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:30,385 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 46 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:30,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 89 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 10:35:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 83. [2022-10-16 10:35:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-10-16 10:35:30,396 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 15 [2022-10-16 10:35:30,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:30,396 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-10-16 10:35:30,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:30,397 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-10-16 10:35:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:35:30,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:30,398 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:30,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:30,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:30,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1227393585, now seen corresponding path program 1 times [2022-10-16 10:35:30,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:30,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307302592] [2022-10-16 10:35:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:30,631 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733083739] [2022-10-16 10:35:30,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:30,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:30,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:30,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:35:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:30,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:30,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:30,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307302592] [2022-10-16 10:35:30,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733083739] [2022-10-16 10:35:30,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733083739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:30,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:30,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:30,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180205232] [2022-10-16 10:35:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:30,742 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 10:35:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:30,845 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2022-10-16 10:35:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:30,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 10:35:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:30,847 INFO L225 Difference]: With dead ends: 110 [2022-10-16 10:35:30,847 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 10:35:30,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:30,851 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 50 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:30,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 84 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:30,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 10:35:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 81. [2022-10-16 10:35:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 80 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2022-10-16 10:35:30,881 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 17 [2022-10-16 10:35:30,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:30,882 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2022-10-16 10:35:30,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 10:35:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2022-10-16 10:35:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:35:30,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:30,885 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 10:35:30,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:31,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:31,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:31,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1590808951, now seen corresponding path program 1 times [2022-10-16 10:35:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:31,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760324185] [2022-10-16 10:35:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:31,131 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:31,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273038761] [2022-10-16 10:35:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:31,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:31,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:31,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:31,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:35:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:31,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:35:31,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:31,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:31,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:31,371 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:35:31,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:35:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:31,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:31,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:35:31,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-10-16 10:35:31,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:31,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:31,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760324185] [2022-10-16 10:35:31,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:31,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273038761] [2022-10-16 10:35:31,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273038761] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:31,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:31,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2022-10-16 10:35:31,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869360821] [2022-10-16 10:35:31,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:31,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:35:31,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:31,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:35:31,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:35:31,687 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:32,018 INFO L93 Difference]: Finished difference Result 133 states and 138 transitions. [2022-10-16 10:35:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:35:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 10:35:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:32,019 INFO L225 Difference]: With dead ends: 133 [2022-10-16 10:35:32,020 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 10:35:32,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:35:32,021 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 140 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:32,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 202 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 10:35:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 82. [2022-10-16 10:35:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 64 states have (on average 1.34375) internal successors, (86), 81 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2022-10-16 10:35:32,030 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 19 [2022-10-16 10:35:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:32,030 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2022-10-16 10:35:32,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2022-10-16 10:35:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:35:32,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:32,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:32,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:32,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:32,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2070437139, now seen corresponding path program 1 times [2022-10-16 10:35:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411091209] [2022-10-16 10:35:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:32,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:32,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604761436] [2022-10-16 10:35:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:32,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:32,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:32,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:32,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:35:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:32,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:35:32,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:32,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:32,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:32,417 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:35:32,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:35:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:32,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:32,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:35:32,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-10-16 10:35:32,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:32,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:32,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411091209] [2022-10-16 10:35:32,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:32,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604761436] [2022-10-16 10:35:32,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604761436] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:32,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:32,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 10:35:32,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676799377] [2022-10-16 10:35:32,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:32,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:35:32,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:32,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:35:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:35:32,566 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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 10:35:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:32,839 INFO L93 Difference]: Finished difference Result 132 states and 137 transitions. [2022-10-16 10:35:32,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:35:32,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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 20 [2022-10-16 10:35:32,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:32,841 INFO L225 Difference]: With dead ends: 132 [2022-10-16 10:35:32,841 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 10:35:32,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:35:32,843 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 193 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:32,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 165 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 10:35:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 83. [2022-10-16 10:35:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-10-16 10:35:32,864 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 20 [2022-10-16 10:35:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:32,864 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-10-16 10:35:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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 10:35:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-10-16 10:35:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:35:32,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:32,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:32,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:33,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:33,082 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:33,083 INFO L85 PathProgramCache]: Analyzing trace with hash 278945717, now seen corresponding path program 1 times [2022-10-16 10:35:33,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:33,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073051564] [2022-10-16 10:35:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:33,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:33,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:33,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197356972] [2022-10-16 10:35:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:33,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:33,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:33,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:33,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:35:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 10:35:33,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:33,178 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 10:35:33,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:33,232 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 10:35:33,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:33,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073051564] [2022-10-16 10:35:33,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197356972] [2022-10-16 10:35:33,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197356972] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:33,233 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:33,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 10:35:33,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643236775] [2022-10-16 10:35:33,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 10:35:33,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 10:35:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:35:33,236 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:33,433 INFO L93 Difference]: Finished difference Result 135 states and 142 transitions. [2022-10-16 10:35:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:35:33,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 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 21 [2022-10-16 10:35:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:33,434 INFO L225 Difference]: With dead ends: 135 [2022-10-16 10:35:33,435 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 10:35:33,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:35:33,436 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 144 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:33,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 128 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:33,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 10:35:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 97. [2022-10-16 10:35:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 80 states have (on average 1.2875) internal successors, (103), 96 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2022-10-16 10:35:33,445 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 21 [2022-10-16 10:35:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:33,445 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2022-10-16 10:35:33,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2022-10-16 10:35:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:35:33,446 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:33,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:33,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:33,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:33,661 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:33,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1120229713, now seen corresponding path program 1 times [2022-10-16 10:35:33,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:33,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413618188] [2022-10-16 10:35:33,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:33,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:33,675 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:33,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047341893] [2022-10-16 10:35:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:33,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:33,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:33,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:33,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:35:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:33,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:33,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:33,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:33,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:33,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413618188] [2022-10-16 10:35:33,755 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:33,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047341893] [2022-10-16 10:35:33,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047341893] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:33,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:33,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:33,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448568366] [2022-10-16 10:35:33,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:33,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:33,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:33,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:33,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:33,761 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:33,845 INFO L93 Difference]: Finished difference Result 130 states and 136 transitions. [2022-10-16 10:35:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:35:33,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 10:35:33,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:33,848 INFO L225 Difference]: With dead ends: 130 [2022-10-16 10:35:33,848 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 10:35:33,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:33,852 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:33,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 10:35:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2022-10-16 10:35:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 98 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2022-10-16 10:35:33,860 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 22 [2022-10-16 10:35:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:33,861 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2022-10-16 10:35:33,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2022-10-16 10:35:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:35:33,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:33,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:33,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:34,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:34,076 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash -367382643, now seen corresponding path program 1 times [2022-10-16 10:35:34,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:34,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352079856] [2022-10-16 10:35:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:34,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:34,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:34,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915704980] [2022-10-16 10:35:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:34,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:34,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:34,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:34,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:35:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:34,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:34,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:34,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:34,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:34,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352079856] [2022-10-16 10:35:34,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:34,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915704980] [2022-10-16 10:35:34,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915704980] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:34,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:34,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:34,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877869354] [2022-10-16 10:35:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:34,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:34,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:34,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:34,167 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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 10:35:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:34,251 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2022-10-16 10:35:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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 23 [2022-10-16 10:35:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:34,253 INFO L225 Difference]: With dead ends: 127 [2022-10-16 10:35:34,253 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 10:35:34,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:34,255 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 86 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 10:35:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 98. [2022-10-16 10:35:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 97 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2022-10-16 10:35:34,263 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 23 [2022-10-16 10:35:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:34,264 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2022-10-16 10:35:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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 10:35:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2022-10-16 10:35:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:35:34,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:34,268 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:34,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:34,484 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,SelfDestructingSolverStorable10 [2022-10-16 10:35:34,485 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:34,487 INFO L85 PathProgramCache]: Analyzing trace with hash -867399025, now seen corresponding path program 1 times [2022-10-16 10:35:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:34,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281918197] [2022-10-16 10:35:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:34,501 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:34,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36855254] [2022-10-16 10:35:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:34,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:34,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:34,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:35:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:34,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:35:34,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:34,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:34,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:34,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281918197] [2022-10-16 10:35:34,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:34,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36855254] [2022-10-16 10:35:34,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36855254] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:34,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:34,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:35:34,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916369027] [2022-10-16 10:35:34,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:34,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:35:34,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:35:34,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:35:34,727 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:35,032 INFO L93 Difference]: Finished difference Result 252 states and 264 transitions. [2022-10-16 10:35:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:35:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:35:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:35,034 INFO L225 Difference]: With dead ends: 252 [2022-10-16 10:35:35,034 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 10:35:35,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:35,036 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 287 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:35,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 191 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 10:35:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 106. [2022-10-16 10:35:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 105 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 10:35:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2022-10-16 10:35:35,044 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 25 [2022-10-16 10:35:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:35,045 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2022-10-16 10:35:35,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2022-10-16 10:35:35,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:35:35,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:35,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:35,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:35,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:35,261 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash -346852321, now seen corresponding path program 1 times [2022-10-16 10:35:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:35,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743811912] [2022-10-16 10:35:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:35,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:35,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93376402] [2022-10-16 10:35:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:35,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:35,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:35,282 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:35,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:35:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:35,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 10:35:35,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:35,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:35,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-10-16 10:35:35,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:35,492 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:35:35,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:35:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:35,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:35,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:35:35,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-10-16 10:35:35,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:35,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:35,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743811912] [2022-10-16 10:35:35,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:35,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93376402] [2022-10-16 10:35:35,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93376402] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:35,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:35,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2022-10-16 10:35:35,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649321168] [2022-10-16 10:35:35,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:35,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 10:35:35,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 10:35:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:35:35,738 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:36,157 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2022-10-16 10:35:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:35:36,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:35:36,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:36,158 INFO L225 Difference]: With dead ends: 164 [2022-10-16 10:35:36,158 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 10:35:36,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:35:36,160 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 153 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:36,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 257 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 75 Unchecked, 0.2s Time] [2022-10-16 10:35:36,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 10:35:36,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 107. [2022-10-16 10:35:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 106 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2022-10-16 10:35:36,168 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 27 [2022-10-16 10:35:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:36,168 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2022-10-16 10:35:36,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2022-10-16 10:35:36,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:35:36,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:36,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:36,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:36,385 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,SelfDestructingSolverStorable12 [2022-10-16 10:35:36,386 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:36,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:36,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2132480045, now seen corresponding path program 1 times [2022-10-16 10:35:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:36,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113752363] [2022-10-16 10:35:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:36,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:36,398 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462505493] [2022-10-16 10:35:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:36,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:36,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:36,400 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:36,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:35:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:36,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 10:35:36,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:36,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:36,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-10-16 10:35:36,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:36,614 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:35:36,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:35:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:36,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:36,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:35:36,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-10-16 10:35:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:36,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:36,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113752363] [2022-10-16 10:35:36,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:36,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462505493] [2022-10-16 10:35:36,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462505493] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:36,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:36,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 10:35:36,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936265871] [2022-10-16 10:35:36,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:36,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:35:36,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:36,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:35:36,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:35:36,792 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:37,162 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2022-10-16 10:35:37,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:35:37,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:35:37,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:37,163 INFO L225 Difference]: With dead ends: 162 [2022-10-16 10:35:37,164 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:35:37,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:35:37,165 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 164 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:37,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 222 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 323 Invalid, 0 Unknown, 108 Unchecked, 0.2s Time] [2022-10-16 10:35:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:35:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 108. [2022-10-16 10:35:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 107 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 114 transitions. [2022-10-16 10:35:37,173 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 114 transitions. Word has length 28 [2022-10-16 10:35:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:37,173 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 114 transitions. [2022-10-16 10:35:37,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2022-10-16 10:35:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:35:37,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:37,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:37,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:37,389 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,SelfDestructingSolverStorable13 [2022-10-16 10:35:37,390 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:37,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:37,391 INFO L85 PathProgramCache]: Analyzing trace with hash 613926575, now seen corresponding path program 1 times [2022-10-16 10:35:37,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:37,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218920137] [2022-10-16 10:35:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:37,404 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:37,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400778228] [2022-10-16 10:35:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:37,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:37,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:37,409 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:37,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:35:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:37,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:37,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:37,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:37,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:37,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218920137] [2022-10-16 10:35:37,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:37,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400778228] [2022-10-16 10:35:37,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400778228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:37,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:37,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:37,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078648018] [2022-10-16 10:35:37,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:37,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:37,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:37,473 INFO L87 Difference]: Start difference. First operand 108 states and 114 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:37,563 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2022-10-16 10:35:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:35:37,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 10:35:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:37,565 INFO L225 Difference]: With dead ends: 133 [2022-10-16 10:35:37,565 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 10:35:37,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:37,566 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 39 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:37,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 97 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 10:35:37,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 110. [2022-10-16 10:35:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 109 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2022-10-16 10:35:37,574 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 30 [2022-10-16 10:35:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:37,574 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2022-10-16 10:35:37,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2022-10-16 10:35:37,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:35:37,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:37,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:37,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:37,790 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,SelfDestructingSolverStorable14 [2022-10-16 10:35:37,791 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:37,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1851854755, now seen corresponding path program 1 times [2022-10-16 10:35:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:37,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179223684] [2022-10-16 10:35:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:37,802 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:37,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564680413] [2022-10-16 10:35:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:37,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:37,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:37,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:35:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:37,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:37,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:37,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:37,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179223684] [2022-10-16 10:35:37,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:37,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564680413] [2022-10-16 10:35:37,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564680413] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:37,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:37,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933005579] [2022-10-16 10:35:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:37,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:37,869 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:37,955 INFO L93 Difference]: Finished difference Result 130 states and 136 transitions. [2022-10-16 10:35:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:37,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 10:35:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:37,956 INFO L225 Difference]: With dead ends: 130 [2022-10-16 10:35:37,956 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 10:35:37,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:37,957 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 41 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:37,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 10:35:37,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 109. [2022-10-16 10:35:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 108 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2022-10-16 10:35:37,965 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 31 [2022-10-16 10:35:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:37,966 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2022-10-16 10:35:37,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2022-10-16 10:35:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:35:37,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:37,967 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:38,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:38,180 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,SelfDestructingSolverStorable15 [2022-10-16 10:35:38,180 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1515962341, now seen corresponding path program 1 times [2022-10-16 10:35:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:38,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454469833] [2022-10-16 10:35:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:38,192 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:38,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708103268] [2022-10-16 10:35:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:38,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:38,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:38,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:38,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:35:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:38,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:35:38,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:38,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:35:38,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:38,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454469833] [2022-10-16 10:35:38,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:38,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708103268] [2022-10-16 10:35:38,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708103268] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:38,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:38,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:35:38,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488806551] [2022-10-16 10:35:38,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:38,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:35:38,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:38,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:35:38,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:35:38,401 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 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 10:35:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:38,698 INFO L93 Difference]: Finished difference Result 222 states and 232 transitions. [2022-10-16 10:35:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:35:38,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 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 33 [2022-10-16 10:35:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:38,700 INFO L225 Difference]: With dead ends: 222 [2022-10-16 10:35:38,700 INFO L226 Difference]: Without dead ends: 185 [2022-10-16 10:35:38,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:38,701 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 211 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:38,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 189 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-16 10:35:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 117. [2022-10-16 10:35:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 116 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 123 transitions. [2022-10-16 10:35:38,710 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 123 transitions. Word has length 33 [2022-10-16 10:35:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:38,710 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 123 transitions. [2022-10-16 10:35:38,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 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 10:35:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 123 transitions. [2022-10-16 10:35:38,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:35:38,711 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:38,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:38,747 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 10:35:38,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:38,914 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash -393547229, now seen corresponding path program 1 times [2022-10-16 10:35:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122181919] [2022-10-16 10:35:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:38,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:38,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:38,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575163092] [2022-10-16 10:35:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:38,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:38,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:38,928 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:38,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:35:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:38,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 10:35:38,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:39,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:39,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122181919] [2022-10-16 10:35:39,118 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:39,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575163092] [2022-10-16 10:35:39,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575163092] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:39,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:39,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 10:35:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994638860] [2022-10-16 10:35:39,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:39,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:35:39,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:39,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:35:39,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:35:39,120 INFO L87 Difference]: Start difference. First operand 117 states and 123 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 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 10:35:39,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:39,326 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2022-10-16 10:35:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:35:39,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 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) Word has length 34 [2022-10-16 10:35:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:39,328 INFO L225 Difference]: With dead ends: 151 [2022-10-16 10:35:39,328 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 10:35:39,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:39,329 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:39,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 220 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 10:35:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 116. [2022-10-16 10:35:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 102 states have (on average 1.196078431372549) internal successors, (122), 115 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2022-10-16 10:35:39,338 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 34 [2022-10-16 10:35:39,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:39,338 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2022-10-16 10:35:39,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 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 10:35:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2022-10-16 10:35:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 10:35:39,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:39,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:39,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:35:39,555 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:39,556 INFO L85 PathProgramCache]: Analyzing trace with hash 845852341, now seen corresponding path program 1 times [2022-10-16 10:35:39,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:39,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154276744] [2022-10-16 10:35:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:39,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:39,567 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:39,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276042899] [2022-10-16 10:35:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:39,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:39,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:39,569 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:39,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:35:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:39,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:35:39,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:39,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:39,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:35:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:39,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:39,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:35:39,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-10-16 10:35:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:39,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:39,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154276744] [2022-10-16 10:35:39,797 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:39,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276042899] [2022-10-16 10:35:39,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276042899] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:39,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:39,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2022-10-16 10:35:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150114648] [2022-10-16 10:35:39,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:39,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 10:35:39,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 10:35:39,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:35:39,800 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:40,118 INFO L93 Difference]: Finished difference Result 148 states and 155 transitions. [2022-10-16 10:35:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:35:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 10:35:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:40,120 INFO L225 Difference]: With dead ends: 148 [2022-10-16 10:35:40,120 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 10:35:40,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:35:40,121 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 199 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:40,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 240 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 10:35:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2022-10-16 10:35:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.1962616822429906) internal successors, (128), 120 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 128 transitions. [2022-10-16 10:35:40,131 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 128 transitions. Word has length 35 [2022-10-16 10:35:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:40,132 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 128 transitions. [2022-10-16 10:35:40,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 128 transitions. [2022-10-16 10:35:40,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 10:35:40,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:40,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:40,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:40,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:40,346 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:40,348 INFO L85 PathProgramCache]: Analyzing trace with hash -273528871, now seen corresponding path program 2 times [2022-10-16 10:35:40,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:40,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738695564] [2022-10-16 10:35:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:40,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:40,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:40,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163627616] [2022-10-16 10:35:40,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:35:40,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:40,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:40,360 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:40,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:35:40,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:35:40,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:35:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:35:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:40,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:35:40,532 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:35:40,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:35:40,573 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:35:40,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-10-16 10:35:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:40,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:40,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:35:40,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-10-16 10:35:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738695564] [2022-10-16 10:35:40,817 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163627616] [2022-10-16 10:35:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163627616] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:40,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:40,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2022-10-16 10:35:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268048336] [2022-10-16 10:35:40,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:35:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:35:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:40,820 INFO L87 Difference]: Start difference. First operand 121 states and 128 transitions. Second operand has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:41,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:41,516 INFO L93 Difference]: Finished difference Result 261 states and 274 transitions. [2022-10-16 10:35:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:35:41,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 10:35:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:41,518 INFO L225 Difference]: With dead ends: 261 [2022-10-16 10:35:41,518 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 10:35:41,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:35:41,520 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 277 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:41,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 452 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:35:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 10:35:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 124. [2022-10-16 10:35:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 110 states have (on average 1.2) internal successors, (132), 123 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2022-10-16 10:35:41,531 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 35 [2022-10-16 10:35:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:41,532 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2022-10-16 10:35:41,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2022-10-16 10:35:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:35:41,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:41,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:41,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:41,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:41,747 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash 451618925, now seen corresponding path program 1 times [2022-10-16 10:35:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373136029] [2022-10-16 10:35:41,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:41,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:41,759 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151699545] [2022-10-16 10:35:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:41,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:41,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:41,761 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:41,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:35:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:41,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:35:41,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:41,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:35:41,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-10-16 10:35:41,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-10-16 10:35:41,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:35:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:41,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:42,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:35:42,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-10-16 10:35:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:42,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:42,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373136029] [2022-10-16 10:35:42,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:42,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151699545] [2022-10-16 10:35:42,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151699545] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:42,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:42,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 10:35:42,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537250070] [2022-10-16 10:35:42,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:42,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:35:42,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:42,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:35:42,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:35:42,223 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:42,587 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2022-10-16 10:35:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:35:42,587 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 10:35:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:42,589 INFO L225 Difference]: With dead ends: 178 [2022-10-16 10:35:42,589 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 10:35:42,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-10-16 10:35:42,590 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 126 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 169 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:42,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 281 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 215 Invalid, 0 Unknown, 169 Unchecked, 0.2s Time] [2022-10-16 10:35:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 10:35:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 126. [2022-10-16 10:35:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 125 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 135 transitions. [2022-10-16 10:35:42,602 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 135 transitions. Word has length 36 [2022-10-16 10:35:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:42,602 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 135 transitions. [2022-10-16 10:35:42,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 135 transitions. [2022-10-16 10:35:42,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:35:42,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:42,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:42,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:42,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:42,820 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:42,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash 110539677, now seen corresponding path program 1 times [2022-10-16 10:35:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:42,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140640801] [2022-10-16 10:35:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:42,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:42,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661962863] [2022-10-16 10:35:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:42,834 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:42,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 10:35:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:42,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:35:42,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:42,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:35:42,980 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:35:42,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:35:43,019 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:35:43,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-10-16 10:35:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:43,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:43,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:35:43,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-10-16 10:35:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:43,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140640801] [2022-10-16 10:35:43,161 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:43,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661962863] [2022-10-16 10:35:43,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661962863] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:43,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:43,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-10-16 10:35:43,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516750376] [2022-10-16 10:35:43,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:43,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:35:43,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:35:43,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:35:43,163 INFO L87 Difference]: Start difference. First operand 126 states and 135 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:43,879 INFO L93 Difference]: Finished difference Result 251 states and 263 transitions. [2022-10-16 10:35:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:35:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 10:35:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:43,881 INFO L225 Difference]: With dead ends: 251 [2022-10-16 10:35:43,882 INFO L226 Difference]: Without dead ends: 250 [2022-10-16 10:35:43,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:35:43,886 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 254 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:43,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 498 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:35:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-16 10:35:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 127. [2022-10-16 10:35:43,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 126 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 136 transitions. [2022-10-16 10:35:43,898 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 136 transitions. Word has length 36 [2022-10-16 10:35:43,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:43,898 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 136 transitions. [2022-10-16 10:35:43,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 136 transitions. [2022-10-16 10:35:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 10:35:43,899 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:43,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:43,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:44,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:44,113 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 214094255, now seen corresponding path program 1 times [2022-10-16 10:35:44,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:44,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655859924] [2022-10-16 10:35:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:44,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:44,158 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837794669] [2022-10-16 10:35:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:44,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:44,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:44,161 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:44,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 10:35:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:44,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:44,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:35:44,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:44,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:44,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655859924] [2022-10-16 10:35:44,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:44,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837794669] [2022-10-16 10:35:44,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837794669] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:44,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:44,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051659409] [2022-10-16 10:35:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:44,241 INFO L87 Difference]: Start difference. First operand 127 states and 136 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:44,335 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2022-10-16 10:35:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:35:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 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 38 [2022-10-16 10:35:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:44,337 INFO L225 Difference]: With dead ends: 143 [2022-10-16 10:35:44,337 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 10:35:44,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:44,338 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:44,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 93 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 10:35:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2022-10-16 10:35:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 115 states have (on average 1.2) internal successors, (138), 128 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 138 transitions. [2022-10-16 10:35:44,351 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 138 transitions. Word has length 38 [2022-10-16 10:35:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:44,352 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 138 transitions. [2022-10-16 10:35:44,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 138 transitions. [2022-10-16 10:35:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 10:35:44,354 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:44,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:44,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:44,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 10:35:44,568 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:44,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:44,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1145549985, now seen corresponding path program 1 times [2022-10-16 10:35:44,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:44,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456655533] [2022-10-16 10:35:44,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:44,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:44,581 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:44,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312660616] [2022-10-16 10:35:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:44,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:44,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:44,583 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:44,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 10:35:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:44,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:35:44,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:35:44,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:35:44,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:44,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456655533] [2022-10-16 10:35:44,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:44,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312660616] [2022-10-16 10:35:44,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312660616] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:44,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:44,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 10:35:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164972469] [2022-10-16 10:35:44,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:35:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:44,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:35:44,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:35:44,699 INFO L87 Difference]: Start difference. First operand 129 states and 138 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:44,905 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2022-10-16 10:35:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:35:44,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 10:35:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:44,908 INFO L225 Difference]: With dead ends: 165 [2022-10-16 10:35:44,908 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 10:35:44,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 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 10:35:44,910 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 97 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:44,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 181 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:44,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 10:35:44,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2022-10-16 10:35:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 129 states have (on average 1.2248062015503876) internal successors, (158), 142 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 158 transitions. [2022-10-16 10:35:44,924 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 158 transitions. Word has length 38 [2022-10-16 10:35:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:44,925 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 158 transitions. [2022-10-16 10:35:44,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 158 transitions. [2022-10-16 10:35:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:35:44,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:44,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:44,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:45,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-16 10:35:45,135 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1953012551, now seen corresponding path program 1 times [2022-10-16 10:35:45,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:45,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715612836] [2022-10-16 10:35:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:45,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:45,145 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:45,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021947363] [2022-10-16 10:35:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:45,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:45,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:45,150 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:45,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 10:35:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:45,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:35:45,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:35:45,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:35:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:45,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715612836] [2022-10-16 10:35:45,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021947363] [2022-10-16 10:35:45,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021947363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:35:45,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:35:45,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:35:45,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600486344] [2022-10-16 10:35:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:35:45,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:35:45,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:45,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:35:45,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:35:45,224 INFO L87 Difference]: Start difference. First operand 143 states and 158 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 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 10:35:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:45,307 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2022-10-16 10:35:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:35:45,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 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) Word has length 39 [2022-10-16 10:35:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:45,309 INFO L225 Difference]: With dead ends: 153 [2022-10-16 10:35:45,309 INFO L226 Difference]: Without dead ends: 152 [2022-10-16 10:35:45,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:35:45,311 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 37 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:45,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 82 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:35:45,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-10-16 10:35:45,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2022-10-16 10:35:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 141 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 157 transitions. [2022-10-16 10:35:45,327 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 157 transitions. Word has length 39 [2022-10-16 10:35:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:45,327 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 157 transitions. [2022-10-16 10:35:45,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 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 10:35:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 157 transitions. [2022-10-16 10:35:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:35:45,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:45,328 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:45,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-10-16 10:35:45,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:45,539 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:45,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash 55650875, now seen corresponding path program 1 times [2022-10-16 10:35:45,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:45,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034305085] [2022-10-16 10:35:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:45,555 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261219888] [2022-10-16 10:35:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:45,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:45,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:45,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 10:35:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:35:45,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:35:45,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:45,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:45,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034305085] [2022-10-16 10:35:45,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261219888] [2022-10-16 10:35:45,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261219888] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:45,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:45,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:35:45,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790612695] [2022-10-16 10:35:45,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:45,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:35:45,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:35:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:35:45,777 INFO L87 Difference]: Start difference. First operand 142 states and 157 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:46,064 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2022-10-16 10:35:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:35:46,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:35:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:46,066 INFO L225 Difference]: With dead ends: 213 [2022-10-16 10:35:46,066 INFO L226 Difference]: Without dead ends: 188 [2022-10-16 10:35:46,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:46,068 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 165 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:46,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 203 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:35:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-16 10:35:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 150. [2022-10-16 10:35:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 137 states have (on average 1.2043795620437956) internal successors, (165), 149 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:46,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2022-10-16 10:35:46,092 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 41 [2022-10-16 10:35:46,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:46,093 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2022-10-16 10:35:46,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:46,094 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2022-10-16 10:35:46,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:35:46,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:46,095 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:46,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:46,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:46,309 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash 730621919, now seen corresponding path program 3 times [2022-10-16 10:35:46,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:46,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275267036] [2022-10-16 10:35:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:46,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:46,319 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130572642] [2022-10-16 10:35:46,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:35:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:46,322 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:46,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 10:35:46,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:35:46,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:35:46,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:35:46,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:46,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:46,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:46,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275267036] [2022-10-16 10:35:46,650 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:46,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130572642] [2022-10-16 10:35:46,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130572642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:46,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:46,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 10:35:46,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030646667] [2022-10-16 10:35:46,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:46,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:35:46,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:35:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:35:46,652 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:47,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:47,154 INFO L93 Difference]: Finished difference Result 314 states and 343 transitions. [2022-10-16 10:35:47,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:35:47,155 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 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 41 [2022-10-16 10:35:47,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:47,156 INFO L225 Difference]: With dead ends: 314 [2022-10-16 10:35:47,156 INFO L226 Difference]: Without dead ends: 244 [2022-10-16 10:35:47,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 58 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:35:47,158 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 321 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:47,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 249 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:35:47,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-10-16 10:35:47,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 164. [2022-10-16 10:35:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 151 states have (on average 1.1920529801324504) internal successors, (180), 163 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2022-10-16 10:35:47,173 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 41 [2022-10-16 10:35:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:47,174 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2022-10-16 10:35:47,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2022-10-16 10:35:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:35:47,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:47,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:47,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:47,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 10:35:47,391 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:47,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash 724398025, now seen corresponding path program 2 times [2022-10-16 10:35:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:47,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226910805] [2022-10-16 10:35:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:47,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:47,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:47,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091525157] [2022-10-16 10:35:47,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:35:47,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:47,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:47,401 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:47,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 10:35:47,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:35:47,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:35:47,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 10:35:47,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:47,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:47,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226910805] [2022-10-16 10:35:47,707 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:47,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091525157] [2022-10-16 10:35:47,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091525157] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:47,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:47,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-10-16 10:35:47,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879017791] [2022-10-16 10:35:47,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:47,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:35:47,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:35:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:35:47,710 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:48,259 INFO L93 Difference]: Finished difference Result 221 states and 243 transitions. [2022-10-16 10:35:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:35:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 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 41 [2022-10-16 10:35:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:48,261 INFO L225 Difference]: With dead ends: 221 [2022-10-16 10:35:48,262 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 10:35:48,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:35:48,263 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:48,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 272 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:35:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 10:35:48,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-10-16 10:35:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 191 states have (on average 1.1727748691099475) internal successors, (224), 203 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 224 transitions. [2022-10-16 10:35:48,281 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 224 transitions. Word has length 41 [2022-10-16 10:35:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:48,282 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 224 transitions. [2022-10-16 10:35:48,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 224 transitions. [2022-10-16 10:35:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 10:35:48,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:48,283 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:48,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:48,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 10:35:48,496 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:48,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:48,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1434676433, now seen corresponding path program 2 times [2022-10-16 10:35:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:48,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968191241] [2022-10-16 10:35:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:48,538 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:48,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430215735] [2022-10-16 10:35:48,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:35:48,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:48,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:48,540 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:48,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 10:35:48,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:35:48,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:35:48,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:35:48,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:48,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:35:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:35:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:35:48,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968191241] [2022-10-16 10:35:48,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:35:48,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430215735] [2022-10-16 10:35:48,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430215735] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:35:48,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:35:48,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:35:48,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505503812] [2022-10-16 10:35:48,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:35:48,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:35:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:35:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:35:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:35:48,751 INFO L87 Difference]: Start difference. First operand 204 states and 224 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:49,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:35:49,158 INFO L93 Difference]: Finished difference Result 293 states and 316 transitions. [2022-10-16 10:35:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:35:49,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 10:35:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:35:49,160 INFO L225 Difference]: With dead ends: 293 [2022-10-16 10:35:49,160 INFO L226 Difference]: Without dead ends: 242 [2022-10-16 10:35:49,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:35:49,162 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 268 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:35:49,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 244 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:35:49,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-16 10:35:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 204. [2022-10-16 10:35:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 191 states have (on average 1.162303664921466) internal successors, (222), 203 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2022-10-16 10:35:49,180 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 43 [2022-10-16 10:35:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:35:49,180 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2022-10-16 10:35:49,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:35:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2022-10-16 10:35:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 10:35:49,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:35:49,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:35:49,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 10:35:49,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 10:35:49,397 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:35:49,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:35:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1943096629, now seen corresponding path program 3 times [2022-10-16 10:35:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:35:49,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427160958] [2022-10-16 10:35:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:35:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:35:49,407 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:35:49,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135679131] [2022-10-16 10:35:49,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:35:49,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:35:49,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:35:49,437 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:35:49,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 10:35:49,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:35:49,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:35:49,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 10:35:49,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:35:49,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:35:49,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:49,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:35:49,724 INFO L356 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-10-16 10:35:49,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 45 [2022-10-16 10:35:49,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:35:49,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:35:49,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:35:49,972 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:35:49,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-10-16 10:35:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:35:49,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:06,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2022-10-16 10:36:06,851 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-10-16 10:36:06,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 223 treesize of output 211 [2022-10-16 10:36:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:08,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:08,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427160958] [2022-10-16 10:36:08,692 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:08,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135679131] [2022-10-16 10:36:08,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135679131] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:08,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:08,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2022-10-16 10:36:08,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774281036] [2022-10-16 10:36:08,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:08,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:36:08,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:08,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:36:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1014, Unknown=11, NotChecked=0, Total=1260 [2022-10-16 10:36:08,695 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:19,839 INFO L93 Difference]: Finished difference Result 321 states and 343 transitions. [2022-10-16 10:36:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-10-16 10:36:19,839 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 0 states have call successors, (0), 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 49 [2022-10-16 10:36:19,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:19,841 INFO L225 Difference]: With dead ends: 321 [2022-10-16 10:36:19,841 INFO L226 Difference]: Without dead ends: 320 [2022-10-16 10:36:19,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1514 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=942, Invalid=4441, Unknown=19, NotChecked=0, Total=5402 [2022-10-16 10:36:19,845 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 520 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 510 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:19,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 686 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1517 Invalid, 0 Unknown, 510 Unchecked, 1.1s Time] [2022-10-16 10:36:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-10-16 10:36:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 219. [2022-10-16 10:36:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 206 states have (on average 1.1699029126213591) internal successors, (241), 218 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 241 transitions. [2022-10-16 10:36:19,869 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 241 transitions. Word has length 49 [2022-10-16 10:36:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:19,869 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 241 transitions. [2022-10-16 10:36:19,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 241 transitions. [2022-10-16 10:36:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 10:36:19,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:19,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:19,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:20,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:20,086 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:20,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:20,087 INFO L85 PathProgramCache]: Analyzing trace with hash -657198861, now seen corresponding path program 1 times [2022-10-16 10:36:20,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:20,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107549508] [2022-10-16 10:36:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:20,099 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:20,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586280186] [2022-10-16 10:36:20,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:20,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:20,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:20,101 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:20,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 10:36:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:36:20,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:36:20,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:36:20,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:36:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:20,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107549508] [2022-10-16 10:36:20,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:20,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586280186] [2022-10-16 10:36:20,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586280186] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:36:20,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:36:20,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:36:20,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603323731] [2022-10-16 10:36:20,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:36:20,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:36:20,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:20,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:36:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:36:20,184 INFO L87 Difference]: Start difference. First operand 219 states and 241 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:20,293 INFO L93 Difference]: Finished difference Result 231 states and 252 transitions. [2022-10-16 10:36:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:36:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 10:36:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:20,295 INFO L225 Difference]: With dead ends: 231 [2022-10-16 10:36:20,295 INFO L226 Difference]: Without dead ends: 230 [2022-10-16 10:36:20,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:36:20,297 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:20,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:36:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-10-16 10:36:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2022-10-16 10:36:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 213 states have (on average 1.164319248826291) internal successors, (248), 225 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 248 transitions. [2022-10-16 10:36:20,319 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 248 transitions. Word has length 50 [2022-10-16 10:36:20,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:20,320 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 248 transitions. [2022-10-16 10:36:20,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 248 transitions. [2022-10-16 10:36:20,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 10:36:20,321 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:20,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:20,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:20,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:20,536 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:20,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash 106453463, now seen corresponding path program 1 times [2022-10-16 10:36:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:20,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578711391] [2022-10-16 10:36:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:20,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:20,553 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:20,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741443609] [2022-10-16 10:36:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:20,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:20,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:20,555 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:20,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 10:36:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:36:20,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:36:20,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:20,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:36:20,711 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:20,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:20,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 10:36:20,841 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:20,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:20,895 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:36:20,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-10-16 10:36:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:20,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:35,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:36:35,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-10-16 10:36:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:35,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:35,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578711391] [2022-10-16 10:36:35,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:35,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741443609] [2022-10-16 10:36:35,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741443609] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:35,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:35,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2022-10-16 10:36:35,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538101308] [2022-10-16 10:36:35,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:35,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 10:36:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:35,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 10:36:35,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=512, Unknown=6, NotChecked=0, Total=650 [2022-10-16 10:36:35,173 INFO L87 Difference]: Start difference. First operand 226 states and 248 transitions. Second operand has 26 states, 25 states have (on average 3.16) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:42,692 INFO L93 Difference]: Finished difference Result 363 states and 387 transitions. [2022-10-16 10:36:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:36:42,692 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.16) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 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 50 [2022-10-16 10:36:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:42,694 INFO L225 Difference]: With dead ends: 363 [2022-10-16 10:36:42,694 INFO L226 Difference]: Without dead ends: 362 [2022-10-16 10:36:42,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 78 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=368, Invalid=1431, Unknown=7, NotChecked=0, Total=1806 [2022-10-16 10:36:42,696 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 522 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 485 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:42,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 713 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1002 Invalid, 0 Unknown, 485 Unchecked, 0.8s Time] [2022-10-16 10:36:42,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-16 10:36:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 228. [2022-10-16 10:36:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 215 states have (on average 1.1627906976744187) internal successors, (250), 227 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 250 transitions. [2022-10-16 10:36:42,719 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 250 transitions. Word has length 50 [2022-10-16 10:36:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:42,719 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 250 transitions. [2022-10-16 10:36:42,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.16) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 250 transitions. [2022-10-16 10:36:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 10:36:42,720 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:42,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:42,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-10-16 10:36:42,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:42,936 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:42,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1101671960, now seen corresponding path program 1 times [2022-10-16 10:36:42,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:42,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118372531] [2022-10-16 10:36:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:42,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:42,948 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:42,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115265620] [2022-10-16 10:36:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:42,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:42,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:42,950 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:42,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 10:36:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:36:43,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:36:43,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:36:43,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:36:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:43,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118372531] [2022-10-16 10:36:43,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:43,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115265620] [2022-10-16 10:36:43,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115265620] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:36:43,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:36:43,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:36:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132941077] [2022-10-16 10:36:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:36:43,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:36:43,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:36:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:36:43,038 INFO L87 Difference]: Start difference. First operand 228 states and 250 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:43,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:43,145 INFO L93 Difference]: Finished difference Result 230 states and 251 transitions. [2022-10-16 10:36:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:36:43,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 10:36:43,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:43,146 INFO L225 Difference]: With dead ends: 230 [2022-10-16 10:36:43,146 INFO L226 Difference]: Without dead ends: 229 [2022-10-16 10:36:43,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:36:43,147 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:43,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 82 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:36:43,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-16 10:36:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2022-10-16 10:36:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 215 states have (on average 1.158139534883721) internal successors, (249), 226 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2022-10-16 10:36:43,168 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 51 [2022-10-16 10:36:43,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:43,168 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2022-10-16 10:36:43,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:43,168 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2022-10-16 10:36:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 10:36:43,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:43,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:43,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-10-16 10:36:43,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 10:36:43,376 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:43,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1628286679, now seen corresponding path program 4 times [2022-10-16 10:36:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:43,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146932178] [2022-10-16 10:36:43,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:43,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:43,401 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:43,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544563569] [2022-10-16 10:36:43,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:36:43,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:43,408 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:43,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 10:36:43,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:36:43,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:43,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 10:36:43,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:43,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:36:43,608 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:43,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:43,671 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:43,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:43,733 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:36:43,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-10-16 10:36:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:43,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:43,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 10:36:43,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-10-16 10:36:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:44,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:44,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146932178] [2022-10-16 10:36:44,253 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:44,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544563569] [2022-10-16 10:36:44,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544563569] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:44,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:44,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2022-10-16 10:36:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590000421] [2022-10-16 10:36:44,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:44,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 10:36:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 10:36:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-10-16 10:36:44,255 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 26 states, 25 states have (on average 3.92) internal successors, (98), 26 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 10:36:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:45,844 INFO L93 Difference]: Finished difference Result 326 states and 347 transitions. [2022-10-16 10:36:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 10:36:45,844 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.92) internal successors, (98), 26 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) Word has length 51 [2022-10-16 10:36:45,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:45,846 INFO L225 Difference]: With dead ends: 326 [2022-10-16 10:36:45,846 INFO L226 Difference]: Without dead ends: 325 [2022-10-16 10:36:45,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=1586, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 10:36:45,847 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 240 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:45,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 851 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 10:36:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-10-16 10:36:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 227. [2022-10-16 10:36:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 215 states have (on average 1.1534883720930234) internal successors, (248), 226 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 248 transitions. [2022-10-16 10:36:45,870 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 248 transitions. Word has length 51 [2022-10-16 10:36:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:45,870 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 248 transitions. [2022-10-16 10:36:45,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.92) internal successors, (98), 26 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 10:36:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 248 transitions. [2022-10-16 10:36:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 10:36:45,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:45,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:45,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:46,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:46,075 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash -777433639, now seen corresponding path program 1 times [2022-10-16 10:36:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:46,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468764170] [2022-10-16 10:36:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:46,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:46,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051664041] [2022-10-16 10:36:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:46,088 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:46,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 10:36:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:36:46,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:36:46,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:36:46,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:36:46,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:46,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468764170] [2022-10-16 10:36:46,243 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:46,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051664041] [2022-10-16 10:36:46,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051664041] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:46,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:46,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 10:36:46,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855297984] [2022-10-16 10:36:46,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:46,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:36:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:36:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:36:46,245 INFO L87 Difference]: Start difference. First operand 227 states and 248 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:46,476 INFO L93 Difference]: Finished difference Result 253 states and 276 transitions. [2022-10-16 10:36:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:36:46,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 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 52 [2022-10-16 10:36:46,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:46,478 INFO L225 Difference]: With dead ends: 253 [2022-10-16 10:36:46,478 INFO L226 Difference]: Without dead ends: 252 [2022-10-16 10:36:46,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 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 10:36:46,479 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 62 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:46,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 153 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:36:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-10-16 10:36:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 241. [2022-10-16 10:36:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 229 states have (on average 1.165938864628821) internal successors, (267), 240 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 267 transitions. [2022-10-16 10:36:46,514 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 267 transitions. Word has length 52 [2022-10-16 10:36:46,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:46,514 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 267 transitions. [2022-10-16 10:36:46,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 267 transitions. [2022-10-16 10:36:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 10:36:46,515 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:46,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:46,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:46,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:46,731 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:46,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1062720589, now seen corresponding path program 2 times [2022-10-16 10:36:46,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:46,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027136805] [2022-10-16 10:36:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:46,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:46,744 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:46,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643429301] [2022-10-16 10:36:46,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:36:46,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:46,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:46,746 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:46,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 10:36:46,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:36:46,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:46,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 10:36:46,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:46,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:36:46,949 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:46,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:47,018 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:36:47,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:36:47,081 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:36:47,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-10-16 10:36:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:47,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:47,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:36:47,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-10-16 10:36:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:47,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027136805] [2022-10-16 10:36:47,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:47,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643429301] [2022-10-16 10:36:47,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643429301] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:47,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:47,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-10-16 10:36:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520736627] [2022-10-16 10:36:47,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:47,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 10:36:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:47,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 10:36:47,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:36:47,373 INFO L87 Difference]: Start difference. First operand 241 states and 267 transitions. Second operand has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:48,654 INFO L93 Difference]: Finished difference Result 355 states and 385 transitions. [2022-10-16 10:36:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:36:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 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 52 [2022-10-16 10:36:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:48,660 INFO L225 Difference]: With dead ends: 355 [2022-10-16 10:36:48,660 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 10:36:48,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=1018, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:36:48,661 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 239 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:48,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 650 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 10:36:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 10:36:48,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 241. [2022-10-16 10:36:48,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 229 states have (on average 1.1615720524017468) internal successors, (266), 240 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 266 transitions. [2022-10-16 10:36:48,685 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 266 transitions. Word has length 52 [2022-10-16 10:36:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:48,685 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 266 transitions. [2022-10-16 10:36:48,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 266 transitions. [2022-10-16 10:36:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 10:36:48,686 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:48,687 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:48,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:48,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-10-16 10:36:48,901 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2144803482, now seen corresponding path program 1 times [2022-10-16 10:36:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:48,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58567775] [2022-10-16 10:36:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:48,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:48,913 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:48,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956385812] [2022-10-16 10:36:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:48,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:48,914 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:48,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 10:36:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:36:48,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:36:48,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:36:49,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:36:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:49,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58567775] [2022-10-16 10:36:49,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:49,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956385812] [2022-10-16 10:36:49,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956385812] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:49,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:49,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:36:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166522267] [2022-10-16 10:36:49,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:49,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:36:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:36:49,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:36:49,232 INFO L87 Difference]: Start difference. First operand 241 states and 266 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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 10:36:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:49,577 INFO L93 Difference]: Finished difference Result 268 states and 292 transitions. [2022-10-16 10:36:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:36:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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) Word has length 53 [2022-10-16 10:36:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:49,579 INFO L225 Difference]: With dead ends: 268 [2022-10-16 10:36:49,580 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 10:36:49,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-16 10:36:49,581 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 93 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:49,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 207 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:36:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 10:36:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-10-16 10:36:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 205 states have (on average 1.175609756097561) internal successors, (241), 216 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 241 transitions. [2022-10-16 10:36:49,601 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 241 transitions. Word has length 53 [2022-10-16 10:36:49,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:49,601 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 241 transitions. [2022-10-16 10:36:49,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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 10:36:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 241 transitions. [2022-10-16 10:36:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 10:36:49,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:49,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:49,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-10-16 10:36:49,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 10:36:49,817 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash 509747025, now seen corresponding path program 2 times [2022-10-16 10:36:49,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:49,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545215931] [2022-10-16 10:36:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:49,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:49,829 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:49,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704979014] [2022-10-16 10:36:49,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:36:49,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:49,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:49,831 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:49,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 10:36:49,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:36:49,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:49,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:36:49,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:36:50,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:36:50,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:50,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545215931] [2022-10-16 10:36:50,279 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:50,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704979014] [2022-10-16 10:36:50,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704979014] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:50,280 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:50,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 10:36:50,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892071843] [2022-10-16 10:36:50,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:50,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:36:50,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:50,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:36:50,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:36:50,283 INFO L87 Difference]: Start difference. First operand 217 states and 241 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 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 10:36:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:50,769 INFO L93 Difference]: Finished difference Result 318 states and 349 transitions. [2022-10-16 10:36:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:36:50,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 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) Word has length 56 [2022-10-16 10:36:50,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:50,772 INFO L225 Difference]: With dead ends: 318 [2022-10-16 10:36:50,773 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 10:36:50,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2022-10-16 10:36:50,774 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 261 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:50,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 219 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:36:50,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 10:36:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 216. [2022-10-16 10:36:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 204 states have (on average 1.1715686274509804) internal successors, (239), 215 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 239 transitions. [2022-10-16 10:36:50,791 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 239 transitions. Word has length 56 [2022-10-16 10:36:50,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:50,791 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 239 transitions. [2022-10-16 10:36:50,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 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 10:36:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 239 transitions. [2022-10-16 10:36:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 10:36:50,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:50,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:50,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:51,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 10:36:51,002 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash -565418101, now seen corresponding path program 2 times [2022-10-16 10:36:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:51,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096819446] [2022-10-16 10:36:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:51,011 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:51,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140910106] [2022-10-16 10:36:51,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:36:51,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:51,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:51,013 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:51,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 10:36:51,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:36:51,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:51,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:36:51,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:36:51,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:36:51,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:51,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096819446] [2022-10-16 10:36:51,330 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:51,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140910106] [2022-10-16 10:36:51,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140910106] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:51,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:51,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:36:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759562822] [2022-10-16 10:36:51,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:51,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:36:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:36:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:36:51,333 INFO L87 Difference]: Start difference. First operand 216 states and 239 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 10:36:51,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:51,711 INFO L93 Difference]: Finished difference Result 254 states and 276 transitions. [2022-10-16 10:36:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:36:51,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 57 [2022-10-16 10:36:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:51,713 INFO L225 Difference]: With dead ends: 254 [2022-10-16 10:36:51,713 INFO L226 Difference]: Without dead ends: 217 [2022-10-16 10:36:51,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:36:51,714 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 199 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:51,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 144 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:36:51,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-10-16 10:36:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 213. [2022-10-16 10:36:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 201 states have (on average 1.164179104477612) internal successors, (234), 212 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 234 transitions. [2022-10-16 10:36:51,733 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 234 transitions. Word has length 57 [2022-10-16 10:36:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:51,734 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 234 transitions. [2022-10-16 10:36:51,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 10:36:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 234 transitions. [2022-10-16 10:36:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 10:36:51,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:51,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:51,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-10-16 10:36:51,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 10:36:51,938 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1377758773, now seen corresponding path program 2 times [2022-10-16 10:36:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:51,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425746755] [2022-10-16 10:36:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:51,951 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:51,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010588409] [2022-10-16 10:36:51,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:36:51,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:51,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:51,952 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:51,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 10:36:52,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:36:52,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:52,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:36:52,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:52,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:36:52,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:36:52,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:36:52,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:36:52,244 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:36:52,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:36:58,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-10-16 10:36:58,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 122 [2022-10-16 10:36:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:36:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:36:58,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425746755] [2022-10-16 10:36:58,748 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:36:58,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010588409] [2022-10-16 10:36:58,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010588409] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:36:58,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:36:58,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2022-10-16 10:36:58,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211579853] [2022-10-16 10:36:58,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:36:58,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:36:58,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:36:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:36:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=239, Unknown=5, NotChecked=0, Total=306 [2022-10-16 10:36:58,750 INFO L87 Difference]: Start difference. First operand 213 states and 234 transitions. Second operand has 18 states, 17 states have (on average 4.588235294117647) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:59,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:36:59,187 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-10-16 10:36:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:36:59,187 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.588235294117647) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 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 57 [2022-10-16 10:36:59,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:36:59,188 INFO L225 Difference]: With dead ends: 224 [2022-10-16 10:36:59,189 INFO L226 Difference]: Without dead ends: 223 [2022-10-16 10:36:59,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=118, Invalid=429, Unknown=5, NotChecked=0, Total=552 [2022-10-16 10:36:59,190 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 245 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:36:59,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 312 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 395 Invalid, 0 Unknown, 166 Unchecked, 0.3s Time] [2022-10-16 10:36:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-10-16 10:36:59,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2022-10-16 10:36:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 204 states have (on average 1.161764705882353) internal successors, (237), 215 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:59,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 237 transitions. [2022-10-16 10:36:59,211 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 237 transitions. Word has length 57 [2022-10-16 10:36:59,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:36:59,211 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 237 transitions. [2022-10-16 10:36:59,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.588235294117647) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:36:59,211 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 237 transitions. [2022-10-16 10:36:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 10:36:59,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:36:59,212 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:36:59,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-10-16 10:36:59,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 10:36:59,427 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:36:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:36:59,428 INFO L85 PathProgramCache]: Analyzing trace with hash 181679407, now seen corresponding path program 5 times [2022-10-16 10:36:59,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:36:59,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014871796] [2022-10-16 10:36:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:36:59,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:36:59,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:36:59,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797853881] [2022-10-16 10:36:59,439 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:36:59,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:36:59,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:36:59,440 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:36:59,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-16 10:36:59,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:36:59,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:36:59,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:36:59,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:36:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:36:59,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:00,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:00,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014871796] [2022-10-16 10:37:00,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:37:00,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797853881] [2022-10-16 10:37:00,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797853881] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:00,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:37:00,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2022-10-16 10:37:00,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063823029] [2022-10-16 10:37:00,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:00,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 10:37:00,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:00,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 10:37:00,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:37:00,045 INFO L87 Difference]: Start difference. First operand 216 states and 237 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:00,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:00,996 INFO L93 Difference]: Finished difference Result 402 states and 446 transitions. [2022-10-16 10:37:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:37:00,996 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 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 57 [2022-10-16 10:37:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:00,998 INFO L225 Difference]: With dead ends: 402 [2022-10-16 10:37:00,998 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 10:37:00,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=337, Invalid=1555, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 10:37:01,000 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 423 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:01,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 323 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:37:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 10:37:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 236. [2022-10-16 10:37:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 224 states have (on average 1.1517857142857142) internal successors, (258), 235 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 258 transitions. [2022-10-16 10:37:01,024 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 258 transitions. Word has length 57 [2022-10-16 10:37:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:01,025 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 258 transitions. [2022-10-16 10:37:01,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 258 transitions. [2022-10-16 10:37:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 10:37:01,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:01,026 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:01,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:01,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-10-16 10:37:01,240 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash -687453057, now seen corresponding path program 4 times [2022-10-16 10:37:01,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:01,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138451977] [2022-10-16 10:37:01,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:01,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:01,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:37:01,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922258183] [2022-10-16 10:37:01,252 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:37:01,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:01,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:01,253 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:01,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-10-16 10:37:01,332 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:37:01,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:37:01,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:37:01,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:01,503 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:37:01,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:37:01,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:01,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138451977] [2022-10-16 10:37:01,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:37:01,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922258183] [2022-10-16 10:37:01,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922258183] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:01,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:37:01,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 10:37:01,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365756418] [2022-10-16 10:37:01,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:01,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:37:01,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:01,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:37:01,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:37:01,694 INFO L87 Difference]: Start difference. First operand 236 states and 258 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:02,435 INFO L93 Difference]: Finished difference Result 351 states and 383 transitions. [2022-10-16 10:37:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:37:02,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 10:37:02,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:02,437 INFO L225 Difference]: With dead ends: 351 [2022-10-16 10:37:02,437 INFO L226 Difference]: Without dead ends: 278 [2022-10-16 10:37:02,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 94 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2022-10-16 10:37:02,439 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 193 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:02,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 359 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:37:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-10-16 10:37:02,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 236. [2022-10-16 10:37:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 224 states have (on average 1.1428571428571428) internal successors, (256), 235 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 256 transitions. [2022-10-16 10:37:02,468 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 256 transitions. Word has length 59 [2022-10-16 10:37:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:02,468 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 256 transitions. [2022-10-16 10:37:02,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 256 transitions. [2022-10-16 10:37:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 10:37:02,470 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:02,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:02,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:02,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-10-16 10:37:02,684 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:02,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash 586835153, now seen corresponding path program 3 times [2022-10-16 10:37:02,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:02,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308832994] [2022-10-16 10:37:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:02,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:02,697 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:37:02,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327113877] [2022-10-16 10:37:02,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:37:02,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:02,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:02,698 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:02,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-10-16 10:37:02,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:37:02,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:37:02,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 10:37:02,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:02,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:37:03,027 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-10-16 10:37:03,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2022-10-16 10:37:03,299 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 10:37:03,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-10-16 10:37:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:37:03,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:05,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2022-10-16 10:37:05,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 66 [2022-10-16 10:37:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:37:05,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:05,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308832994] [2022-10-16 10:37:05,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:37:05,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327113877] [2022-10-16 10:37:05,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327113877] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:05,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:37:05,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2022-10-16 10:37:05,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714347595] [2022-10-16 10:37:05,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:05,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:37:05,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:05,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:37:05,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=519, Unknown=1, NotChecked=0, Total=600 [2022-10-16 10:37:05,276 INFO L87 Difference]: Start difference. First operand 236 states and 256 transitions. Second operand has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:37:06,876 INFO L93 Difference]: Finished difference Result 252 states and 275 transitions. [2022-10-16 10:37:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:37:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 10:37:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:37:06,878 INFO L225 Difference]: With dead ends: 252 [2022-10-16 10:37:06,878 INFO L226 Difference]: Without dead ends: 251 [2022-10-16 10:37:06,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=143, Invalid=847, Unknown=2, NotChecked=0, Total=992 [2022-10-16 10:37:06,880 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 43 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 414 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:37:06,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 401 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 197 Invalid, 0 Unknown, 414 Unchecked, 0.2s Time] [2022-10-16 10:37:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-10-16 10:37:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 248. [2022-10-16 10:37:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 236 states have (on average 1.152542372881356) internal successors, (272), 247 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 272 transitions. [2022-10-16 10:37:06,906 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 272 transitions. Word has length 63 [2022-10-16 10:37:06,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:37:06,906 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 272 transitions. [2022-10-16 10:37:06,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:37:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 272 transitions. [2022-10-16 10:37:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 10:37:06,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:37:06,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:37:06,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-10-16 10:37:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-10-16 10:37:07,123 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:37:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:37:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1012020689, now seen corresponding path program 1 times [2022-10-16 10:37:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:37:07,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743677083] [2022-10-16 10:37:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:37:07,142 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:37:07,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481087106] [2022-10-16 10:37:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:37:07,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:37:07,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:37:07,143 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:37:07,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-10-16 10:37:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:37:07,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 10:37:07,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:37:07,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:37:07,312 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:37:07,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:37:07,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 10:37:07,468 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:37:07,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:37:07,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 10:37:07,668 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:37:07,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:37:07,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 10:37:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:07,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:37:55,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:37:55,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-10-16 10:37:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:37:55,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:37:55,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743677083] [2022-10-16 10:37:55,790 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:37:55,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481087106] [2022-10-16 10:37:55,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481087106] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:37:55,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:37:55,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 36 [2022-10-16 10:37:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174495730] [2022-10-16 10:37:55,791 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:37:55,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 10:37:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:37:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 10:37:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1025, Unknown=21, NotChecked=0, Total=1332 [2022-10-16 10:37:55,793 INFO L87 Difference]: Start difference. First operand 248 states and 272 transitions. Second operand has 37 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 37 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:38:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:38:16,208 INFO L93 Difference]: Finished difference Result 342 states and 369 transitions. [2022-10-16 10:38:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 10:38:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 37 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-16 10:38:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:38:16,210 INFO L225 Difference]: With dead ends: 342 [2022-10-16 10:38:16,210 INFO L226 Difference]: Without dead ends: 341 [2022-10-16 10:38:16,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 67.7s TimeCoverageRelationStatistics Valid=686, Invalid=2709, Unknown=27, NotChecked=0, Total=3422 [2022-10-16 10:38:16,212 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 561 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 526 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:38:16,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 507 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 720 Invalid, 0 Unknown, 526 Unchecked, 0.7s Time] [2022-10-16 10:38:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-16 10:38:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 252. [2022-10-16 10:38:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 240 states have (on average 1.1541666666666666) internal successors, (277), 251 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:38:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 277 transitions. [2022-10-16 10:38:16,236 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 277 transitions. Word has length 64 [2022-10-16 10:38:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:38:16,237 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 277 transitions. [2022-10-16 10:38:16,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 37 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:38:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 277 transitions. [2022-10-16 10:38:16,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 10:38:16,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:38:16,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:38:16,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2022-10-16 10:38:16,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:38:16,453 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:38:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:38:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1046399621, now seen corresponding path program 5 times [2022-10-16 10:38:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:38:16,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412768870] [2022-10-16 10:38:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:38:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:38:16,463 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:38:16,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993854465] [2022-10-16 10:38:16,464 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:38:16,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:38:16,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:38:16,465 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:38:16,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-10-16 10:38:16,592 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:38:16,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:38:16,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 10:38:16,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:38:16,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:38:16,732 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:38:16,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:38:16,816 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:38:16,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:38:16,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2022-10-16 10:38:17,025 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:38:17,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:38:17,111 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:38:17,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:38:17,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:38:17,206 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 10:38:17,206 INFO L328 TraceCheckSpWp]: Computing backward predicates...