/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-programs/copysome2-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:24:50,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:24:50,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:24:50,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 11:24:50,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:24:50,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:24:50,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:24:50,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:24:50,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:24:50,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:24:50,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:24:50,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:24:50,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:24:50,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:24:50,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:24:50,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:24:50,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:24:50,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:24:50,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:24:50,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:24:50,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:24:50,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:24:50,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:24:50,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:24:50,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:24:50,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:24:50,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:24:50,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:24:50,632 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 11:24:50,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:24:50,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:24:50,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:24:50,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:24:50,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:24:50,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:24:50,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:24:50,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:24:50,699 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:24:50,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:24:50,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:24:50,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:24:50,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:24:50,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:24:50,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:24:50,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:24:50,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:24:50,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:24:50,702 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:24:50,703 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:24:50,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:24:50,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:24:50,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:24:50,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:24:50,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:24:50,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:24:50,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:24:50,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:24:50,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:24:50,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:24:50,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:24:50,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:24:50,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:24:50,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:24:51,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:24:51,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:24:51,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:24:51,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:24:51,193 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:24:51,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-programs/copysome2-2.i [2022-10-16 11:24:51,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3264dced/2784d8fdf16b4db1a2d35bed76b0f4de/FLAG6a3fd5ae2 [2022-10-16 11:24:51,894 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:24:51,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-programs/copysome2-2.i [2022-10-16 11:24:51,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3264dced/2784d8fdf16b4db1a2d35bed76b0f4de/FLAG6a3fd5ae2 [2022-10-16 11:24:52,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3264dced/2784d8fdf16b4db1a2d35bed76b0f4de [2022-10-16 11:24:52,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:24:52,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:24:52,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:24:52,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:24:52,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:24:52,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bdf17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52, skipping insertion in model container [2022-10-16 11:24:52,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:24:52,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:24:52,476 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-programs/copysome2-2.i[804,817] [2022-10-16 11:24:52,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:24:52,507 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:24:52,524 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-programs/copysome2-2.i[804,817] [2022-10-16 11:24:52,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:24:52,552 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:24:52,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52 WrapperNode [2022-10-16 11:24:52,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:24:52,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:24:52,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:24:52,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:24:52,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,601 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2022-10-16 11:24:52,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:24:52,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:24:52,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:24:52,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:24:52,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:24:52,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:24:52,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:24:52,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:24:52,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (1/1) ... [2022-10-16 11:24:52,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:24:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:24:52,681 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 11:24:52,697 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 11:24:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:24:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:24:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:24:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:24:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:24:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:24:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:24:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:24:52,834 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:24:52,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:24:53,093 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:24:53,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:24:53,102 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 11:24:53,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:24:53 BoogieIcfgContainer [2022-10-16 11:24:53,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:24:53,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:24:53,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:24:53,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:24:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:24:52" (1/3) ... [2022-10-16 11:24:53,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:24:53, skipping insertion in model container [2022-10-16 11:24:53,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:24:52" (2/3) ... [2022-10-16 11:24:53,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:24:53, skipping insertion in model container [2022-10-16 11:24:53,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:24:53" (3/3) ... [2022-10-16 11:24:53,128 INFO L112 eAbstractionObserver]: Analyzing ICFG copysome2-2.i [2022-10-16 11:24:53,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:24:53,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 11:24:53,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:24:53,318 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;@787cab52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:24:53,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 11:24:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 37 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 11:24:53,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:24:53,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:53,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:24:53,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:53,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:53,371 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 11:24:53,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:53,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290434035] [2022-10-16 11:24:53,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:53,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:53,806 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 11:24:53,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:53,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290434035] [2022-10-16 11:24:53,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290434035] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:53,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:24:53,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:24:53,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206226123] [2022-10-16 11:24:53,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:24:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:24:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:24:53,852 INFO L87 Difference]: Start difference. First operand has 38 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 37 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:53,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:53,965 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions. [2022-10-16 11:24:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:24:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 11:24:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:53,978 INFO L225 Difference]: With dead ends: 88 [2022-10-16 11:24:53,978 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 11:24:53,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:24:53,987 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:53,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 83 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:24:54,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 11:24:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2022-10-16 11:24:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 38 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-10-16 11:24:54,031 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 5 [2022-10-16 11:24:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:54,031 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-10-16 11:24:54,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-10-16 11:24:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:24:54,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:54,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 11:24:54,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:24:54,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 11:24:54,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:54,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137387844] [2022-10-16 11:24:54,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:54,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:24:54,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:54,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137387844] [2022-10-16 11:24:54,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137387844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:54,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:24:54,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:24:54,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123044417] [2022-10-16 11:24:54,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:54,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:24:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:54,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:24:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:24:54,220 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:54,275 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-10-16 11:24:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:24:54,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:24:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:54,277 INFO L225 Difference]: With dead ends: 39 [2022-10-16 11:24:54,277 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 11:24:54,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:24:54,280 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:54,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:24:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 11:24:54,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 11:24:54,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-10-16 11:24:54,288 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 9 [2022-10-16 11:24:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:54,289 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-10-16 11:24:54,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-10-16 11:24:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:24:54,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:54,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 11:24:54,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:24:54,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:54,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 11:24:54,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:54,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485761238] [2022-10-16 11:24:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:54,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:24:54,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:54,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485761238] [2022-10-16 11:24:54,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485761238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:24:54,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435529829] [2022-10-16 11:24:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:54,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:24:54,510 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 11:24:54,514 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 11:24:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:54,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:24:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:24:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:24:54,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:24:54,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435529829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:54,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:24:54,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:24:54,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452426722] [2022-10-16 11:24:54,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:54,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:24:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:24:54,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:24:54,691 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:54,786 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2022-10-16 11:24:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:24:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:24:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:54,789 INFO L225 Difference]: With dead ends: 50 [2022-10-16 11:24:54,789 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 11:24:54,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:24:54,791 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:54,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 58 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:24:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 11:24:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2022-10-16 11:24:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 33 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 11:24:54,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2022-10-16 11:24:54,801 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 10 [2022-10-16 11:24:54,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:54,801 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2022-10-16 11:24:54,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-10-16 11:24:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:24:54,802 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:54,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:54,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 11:24:55,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:55,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:55,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1579022023, now seen corresponding path program 1 times [2022-10-16 11:24:55,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:55,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315588422] [2022-10-16 11:24:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:55,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:55,198 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 11:24:55,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:55,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315588422] [2022-10-16 11:24:55,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315588422] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:24:55,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569252337] [2022-10-16 11:24:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:55,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:55,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:24:55,209 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 11:24:55,233 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 11:24:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:55,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:24:55,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:24:55,382 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 11:24:55,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:24:55,436 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 11:24:55,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569252337] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:24:55,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:24:55,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 11:24:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082418890] [2022-10-16 11:24:55,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:24:55,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:24:55,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:55,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:24:55,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:24:55,448 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:55,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:55,558 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2022-10-16 11:24:55,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:24:55,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:24:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:55,560 INFO L225 Difference]: With dead ends: 81 [2022-10-16 11:24:55,560 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 11:24:55,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:24:55,563 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 71 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:55,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 97 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:24:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 11:24:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2022-10-16 11:24:55,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 11:24:55,572 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 12 [2022-10-16 11:24:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:55,572 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 11:24:55,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 11:24:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:24:55,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:55,574 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:55,615 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 11:24:55,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 11:24:55,789 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:55,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1437450049, now seen corresponding path program 2 times [2022-10-16 11:24:55,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:55,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362813315] [2022-10-16 11:24:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:24:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362813315] [2022-10-16 11:24:55,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362813315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:55,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:24:55,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:24:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995148913] [2022-10-16 11:24:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:55,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:24:55,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:55,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:24:55,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:24:55,916 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:55,986 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-10-16 11:24:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:24:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:24:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:55,992 INFO L225 Difference]: With dead ends: 79 [2022-10-16 11:24:55,993 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 11:24:55,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 11:24:56,002 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:56,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 44 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:24:56,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 11:24:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2022-10-16 11:24:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 43 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 11:24:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-10-16 11:24:56,023 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 20 [2022-10-16 11:24:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:56,023 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-10-16 11:24:56,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-10-16 11:24:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:24:56,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:56,025 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:56,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:24:56,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:56,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:56,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1437448127, now seen corresponding path program 1 times [2022-10-16 11:24:56,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:56,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662278171] [2022-10-16 11:24:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:24:56,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:56,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662278171] [2022-10-16 11:24:56,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662278171] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:56,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:24:56,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:24:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068251416] [2022-10-16 11:24:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:56,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:24:56,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:56,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:24:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:24:56,173 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:56,226 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2022-10-16 11:24:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:24:56,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:24:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:56,228 INFO L225 Difference]: With dead ends: 54 [2022-10-16 11:24:56,228 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 11:24:56,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:24:56,232 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:56,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:24:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 11:24:56,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-10-16 11:24:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 46 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 11:24:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 11:24:56,250 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 20 [2022-10-16 11:24:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:56,251 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 11:24:56,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 11:24:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:24:56,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:56,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:56,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:24:56,255 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1088295027, now seen corresponding path program 1 times [2022-10-16 11:24:56,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:56,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094217074] [2022-10-16 11:24:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 11:24:56,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:56,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094217074] [2022-10-16 11:24:56,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094217074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:24:56,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:24:56,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:24:56,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597210679] [2022-10-16 11:24:56,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:24:56,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:24:56,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:56,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:24:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:24:56,371 INFO L87 Difference]: Start difference. First operand 47 states and 52 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 11:24:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:56,413 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 11:24:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:24:56,414 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 25 [2022-10-16 11:24:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:56,415 INFO L225 Difference]: With dead ends: 47 [2022-10-16 11:24:56,415 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 11:24:56,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:24:56,421 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:56,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 53 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:24:56,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 11:24:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 11:24:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 45 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 11:24:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 11:24:56,431 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 25 [2022-10-16 11:24:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:56,436 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 11:24:56,436 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 11:24:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 11:24:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:24:56,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:56,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:24:56,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:56,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash 622592600, now seen corresponding path program 1 times [2022-10-16 11:24:56,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077472349] [2022-10-16 11:24:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:56,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:24:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:56,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077472349] [2022-10-16 11:24:56,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077472349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:24:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557711647] [2022-10-16 11:24:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:56,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:24:56,649 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 11:24:56,673 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 11:24:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:56,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:24:56,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:24:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:24:56,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:24:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:24:57,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557711647] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:24:57,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:24:57,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2022-10-16 11:24:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799690267] [2022-10-16 11:24:57,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:24:57,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 11:24:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:57,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 11:24:57,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2022-10-16 11:24:57,019 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 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 11:24:57,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:57,347 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2022-10-16 11:24:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:24:57,348 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 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 26 [2022-10-16 11:24:57,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:57,349 INFO L225 Difference]: With dead ends: 104 [2022-10-16 11:24:57,349 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 11:24:57,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=767, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 11:24:57,351 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 129 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:57,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 191 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:24:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 11:24:57,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2022-10-16 11:24:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 63 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-10-16 11:24:57,358 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 26 [2022-10-16 11:24:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:57,358 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-10-16 11:24:57,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 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 11:24:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-10-16 11:24:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 11:24:57,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:57,360 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:57,399 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 11:24:57,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:57,574 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:57,575 INFO L85 PathProgramCache]: Analyzing trace with hash 873963946, now seen corresponding path program 1 times [2022-10-16 11:24:57,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:57,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588506678] [2022-10-16 11:24:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:57,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:24:58,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:24:58,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588506678] [2022-10-16 11:24:58,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588506678] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:24:58,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752727199] [2022-10-16 11:24:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:58,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:58,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:24:58,044 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 11:24:58,046 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 11:24:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:24:58,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 11:24:58,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:24:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:24:58,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:24:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:24:58,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752727199] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:24:58,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:24:58,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 11:24:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120185931] [2022-10-16 11:24:58,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:24:58,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 11:24:58,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:24:58,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 11:24:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 11:24:58,589 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 34 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 11:24:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:24:58,978 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2022-10-16 11:24:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:24:58,979 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 34 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 42 [2022-10-16 11:24:58,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:24:58,980 INFO L225 Difference]: With dead ends: 134 [2022-10-16 11:24:58,980 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 11:24:58,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 11:24:58,982 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 112 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:24:58,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 204 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:24:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 11:24:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2022-10-16 11:24:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 91 states have (on average 1.10989010989011) internal successors, (101), 95 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:24:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2022-10-16 11:24:58,992 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 42 [2022-10-16 11:24:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:24:58,992 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2022-10-16 11:24:58,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 34 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 11:24:58,993 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2022-10-16 11:24:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 11:24:58,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:24:58,995 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:24:59,035 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 11:24:59,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:24:59,210 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:24:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:24:59,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1409658422, now seen corresponding path program 2 times [2022-10-16 11:24:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:24:59,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460247233] [2022-10-16 11:24:59,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:24:59,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:24:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:25:00,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:00,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460247233] [2022-10-16 11:25:00,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460247233] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:25:00,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012769158] [2022-10-16 11:25:00,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:25:00,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:00,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:25:00,688 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 11:25:00,729 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 11:25:00,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:25:00,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:25:00,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 11:25:00,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:25:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:25:01,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:25:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:25:02,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012769158] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:25:02,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:25:02,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-16 11:25:02,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7771330] [2022-10-16 11:25:02,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:25:02,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-16 11:25:02,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:02,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-16 11:25:02,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 11:25:02,104 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:25:03,137 INFO L93 Difference]: Finished difference Result 198 states and 223 transitions. [2022-10-16 11:25:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 11:25:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 0 states have call successors, (0), 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 74 [2022-10-16 11:25:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:25:03,139 INFO L225 Difference]: With dead ends: 198 [2022-10-16 11:25:03,140 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 11:25:03,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 11:25:03,145 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 312 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:25:03,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 204 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:25:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 11:25:03,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 160. [2022-10-16 11:25:03,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.064516129032258) internal successors, (165), 159 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 11:25:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 165 transitions. [2022-10-16 11:25:03,173 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 165 transitions. Word has length 74 [2022-10-16 11:25:03,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:25:03,173 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 165 transitions. [2022-10-16 11:25:03,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:03,174 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 165 transitions. [2022-10-16 11:25:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 11:25:03,176 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:25:03,176 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:25:03,216 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 11:25:03,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 11:25:03,393 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:25:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:25:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash -362401270, now seen corresponding path program 3 times [2022-10-16 11:25:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:25:03,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167332456] [2022-10-16 11:25:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:03,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:25:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:25:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:07,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167332456] [2022-10-16 11:25:07,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167332456] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:25:07,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119440497] [2022-10-16 11:25:07,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:25:07,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:07,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:25:07,859 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 11:25:07,884 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 11:25:08,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 11:25:08,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:25:08,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:25:08,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:25:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-16 11:25:08,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:25:08,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119440497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:25:08,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:25:08,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [65] total 67 [2022-10-16 11:25:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395744724] [2022-10-16 11:25:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:25:08,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:25:08,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:25:08,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1093, Invalid=3329, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 11:25:08,148 INFO L87 Difference]: Start difference. First operand 160 states and 165 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:25:08,214 INFO L93 Difference]: Finished difference Result 160 states and 165 transitions. [2022-10-16 11:25:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:25:08,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-10-16 11:25:08,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:25:08,216 INFO L225 Difference]: With dead ends: 160 [2022-10-16 11:25:08,216 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 11:25:08,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1097, Invalid=3459, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 11:25:08,219 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:25:08,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 38 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:25:08,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 11:25:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-10-16 11:25:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.0580645161290323) internal successors, (164), 158 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 164 transitions. [2022-10-16 11:25:08,231 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 164 transitions. Word has length 138 [2022-10-16 11:25:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:25:08,232 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 164 transitions. [2022-10-16 11:25:08,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 164 transitions. [2022-10-16 11:25:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 11:25:08,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:25:08,235 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:25:08,275 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 11:25:08,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:08,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:25:08,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:25:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1915826560, now seen corresponding path program 1 times [2022-10-16 11:25:08,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:25:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308031667] [2022-10-16 11:25:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:08,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:25:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 11:25:08,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:08,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308031667] [2022-10-16 11:25:08,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308031667] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:25:08,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:25:08,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:25:08,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707508876] [2022-10-16 11:25:08,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:25:08,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:25:08,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:25:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:25:08,862 INFO L87 Difference]: Start difference. First operand 159 states and 164 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:25:08,910 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2022-10-16 11:25:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:25:08,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-10-16 11:25:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:25:08,912 INFO L225 Difference]: With dead ends: 164 [2022-10-16 11:25:08,912 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 11:25:08,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:25:08,914 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:25:08,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 60 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:25:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 11:25:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-10-16 11:25:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 1.0569620253164558) internal successors, (167), 161 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 167 transitions. [2022-10-16 11:25:08,926 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 167 transitions. Word has length 144 [2022-10-16 11:25:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:25:08,927 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 167 transitions. [2022-10-16 11:25:08,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 167 transitions. [2022-10-16 11:25:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 11:25:08,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:25:08,929 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:25:08,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 11:25:08,930 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:25:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:25:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1048032959, now seen corresponding path program 1 times [2022-10-16 11:25:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:25:08,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975771964] [2022-10-16 11:25:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:08,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:25:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2022-10-16 11:25:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:09,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975771964] [2022-10-16 11:25:09,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975771964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:25:09,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:25:09,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:25:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206000451] [2022-10-16 11:25:09,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:25:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:25:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:09,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:25:09,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:25:09,234 INFO L87 Difference]: Start difference. First operand 162 states and 167 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:09,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:25:09,274 INFO L93 Difference]: Finished difference Result 162 states and 167 transitions. [2022-10-16 11:25:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:25:09,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-10-16 11:25:09,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:25:09,276 INFO L225 Difference]: With dead ends: 162 [2022-10-16 11:25:09,276 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 11:25:09,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:25:09,277 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:25:09,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 49 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:25:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 11:25:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-10-16 11:25:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.0506329113924051) internal successors, (166), 160 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 166 transitions. [2022-10-16 11:25:09,288 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 166 transitions. Word has length 149 [2022-10-16 11:25:09,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:25:09,288 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 166 transitions. [2022-10-16 11:25:09,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 166 transitions. [2022-10-16 11:25:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 11:25:09,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:25:09,291 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:25:09,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 11:25:09,291 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:25:09,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:25:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1870716731, now seen corresponding path program 1 times [2022-10-16 11:25:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:25:09,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839477544] [2022-10-16 11:25:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:25:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:13,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:13,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839477544] [2022-10-16 11:25:13,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839477544] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:25:13,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321014069] [2022-10-16 11:25:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:13,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:13,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:25:13,012 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 11:25:13,038 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 11:25:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:13,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 11:25:13,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:25:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:13,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:25:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:17,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321014069] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:25:17,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:25:17,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 11:25:17,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520799055] [2022-10-16 11:25:17,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:25:17,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 11:25:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:17,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 11:25:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 11:25:17,403 INFO L87 Difference]: Start difference. First operand 161 states and 166 transitions. Second operand has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 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 11:25:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:25:20,767 INFO L93 Difference]: Finished difference Result 323 states and 364 transitions. [2022-10-16 11:25:20,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 11:25:20,767 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 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) Word has length 150 [2022-10-16 11:25:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:25:20,769 INFO L225 Difference]: With dead ends: 323 [2022-10-16 11:25:20,769 INFO L226 Difference]: Without dead ends: 289 [2022-10-16 11:25:20,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 11:25:20,777 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 516 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:25:20,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 216 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:25:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-16 11:25:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-10-16 11:25:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 286 states have (on average 1.027972027972028) internal successors, (294), 288 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:25:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 294 transitions. [2022-10-16 11:25:20,792 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 294 transitions. Word has length 150 [2022-10-16 11:25:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:25:20,792 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 294 transitions. [2022-10-16 11:25:20,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 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 11:25:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 294 transitions. [2022-10-16 11:25:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-16 11:25:20,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:25:20,797 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:25:20,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 11:25:21,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:21,011 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:25:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:25:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1138089915, now seen corresponding path program 2 times [2022-10-16 11:25:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:25:21,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918172158] [2022-10-16 11:25:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:25:21,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:25:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:25:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:25:33,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918172158] [2022-10-16 11:25:33,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918172158] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:25:33,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114989305] [2022-10-16 11:25:33,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:25:33,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:25:33,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:25:33,787 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 11:25:33,788 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 11:25:34,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:25:34,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:25:34,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 11:25:34,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:25:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:35,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:25:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:25:49,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114989305] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:25:49,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:25:49,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 11:25:49,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339353957] [2022-10-16 11:25:49,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:25:49,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 11:25:49,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:25:49,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 11:25:49,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 11:25:49,784 INFO L87 Difference]: Start difference. First operand 289 states and 294 transitions. Second operand has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:26:04,155 INFO L93 Difference]: Finished difference Result 579 states and 652 transitions. [2022-10-16 11:26:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 11:26:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 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 278 [2022-10-16 11:26:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:26:04,160 INFO L225 Difference]: With dead ends: 579 [2022-10-16 11:26:04,160 INFO L226 Difference]: Without dead ends: 545 [2022-10-16 11:26:04,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 11:26:04,171 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1306 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:26:04,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 273 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 11:26:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-10-16 11:26:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2022-10-16 11:26:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 542 states have (on average 1.014760147601476) internal successors, (550), 544 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 550 transitions. [2022-10-16 11:26:04,196 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 550 transitions. Word has length 278 [2022-10-16 11:26:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:26:04,197 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 550 transitions. [2022-10-16 11:26:04,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 550 transitions. [2022-10-16 11:26:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-10-16 11:26:04,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:26:04,209 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:26:04,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 11:26:04,423 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,SelfDestructingSolverStorable14 [2022-10-16 11:26:04,424 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:26:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:26:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash 451403963, now seen corresponding path program 3 times [2022-10-16 11:26:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:26:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064791498] [2022-10-16 11:26:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:26:04,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:26:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:26:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:26:54,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:26:54,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064791498] [2022-10-16 11:26:54,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064791498] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:26:54,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767406316] [2022-10-16 11:26:54,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:26:54,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:26:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:26:54,167 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 11:26:54,168 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 11:26:54,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 11:26:54,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:26:54,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:26:54,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:26:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32138 trivial. 0 not checked. [2022-10-16 11:26:55,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:26:55,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767406316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:26:55,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:26:55,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 11:26:55,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668925299] [2022-10-16 11:26:55,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:26:55,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:26:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:26:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:26:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16645, Invalid=50177, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 11:26:55,054 INFO L87 Difference]: Start difference. First operand 545 states and 550 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:26:55,220 INFO L93 Difference]: Finished difference Result 545 states and 550 transitions. [2022-10-16 11:26:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:26:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 534 [2022-10-16 11:26:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:26:55,227 INFO L225 Difference]: With dead ends: 545 [2022-10-16 11:26:55,227 INFO L226 Difference]: Without dead ends: 544 [2022-10-16 11:26:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=16649, Invalid=50691, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 11:26:55,232 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:26:55,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 34 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:26:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-10-16 11:26:55,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 541. [2022-10-16 11:26:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 539 states have (on average 1.0129870129870129) internal successors, (546), 540 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 546 transitions. [2022-10-16 11:26:55,260 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 546 transitions. Word has length 534 [2022-10-16 11:26:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:26:55,262 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 546 transitions. [2022-10-16 11:26:55,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:26:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 546 transitions. [2022-10-16 11:26:55,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2022-10-16 11:26:55,274 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:26:55,275 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:26:55,311 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 11:26:55,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:26:55,489 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 11:26:55,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:26:55,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1408520193, now seen corresponding path program 1 times [2022-10-16 11:26:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:26:55,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259544624] [2022-10-16 11:26:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:26:55,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:26:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:26:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 32139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32138 trivial. 0 not checked. [2022-10-16 11:26:56,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:26:56,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259544624] [2022-10-16 11:26:56,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259544624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:26:56,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174377700] [2022-10-16 11:26:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:26:56,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:26:56,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:26:56,833 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 11:26:56,838 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 11:26:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:26:58,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 4567 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 11:26:58,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:27:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32139 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:27:20,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:28:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 32139 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:28:19,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174377700] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:28:19,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:28:19,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 514 [2022-10-16 11:28:19,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564064658] [2022-10-16 11:28:19,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:28:19,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 514 states [2022-10-16 11:28:19,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:28:19,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 514 interpolants. [2022-10-16 11:28:19,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66052, Invalid=197630, Unknown=0, NotChecked=0, Total=263682 [2022-10-16 11:28:19,421 INFO L87 Difference]: Start difference. First operand 541 states and 546 transitions. Second operand has 514 states, 514 states have (on average 2.0642023346303504) internal successors, (1061), 514 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)