/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-examples/standard_copy2_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:09:08,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:09:08,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:09:08,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:09:08,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:09:08,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:09:08,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:09:08,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:09:08,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:09:08,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:09:08,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:09:08,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:09:08,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:09:08,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:09:08,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:09:08,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:09:08,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:09:08,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:09:08,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:09:08,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:09:08,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:09:08,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:09:08,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:09:08,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:09:08,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:09:08,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:09:08,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:09:08,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:09:08,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:09:08,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:09:08,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:09:08,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:09:08,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:09:08,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:09:08,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:09:08,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:09:08,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:09:08,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:09:08,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:09:08,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:09:08,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:09:08,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:09:08,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:09:08,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:09:08,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:09:08,646 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:09:08,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:09:08,647 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:09:08,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:09:08,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:09:08,649 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:09:08,649 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:09:08,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:09:08,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:09:08,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:09:08,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:09:08,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:09:08,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:09:08,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:09:08,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:09:08,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:09:08,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:09:08,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:09:08,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:09:08,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:09:08,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:09:09,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:09:09,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:09:09,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:09:09,088 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:09:09,090 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:09:09,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy2_ground-2.i [2022-10-16 10:09:09,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c034bf75/4c76402dbb0945988d2271017ab8e47d/FLAG40d0f567d [2022-10-16 10:09:09,736 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:09:09,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy2_ground-2.i [2022-10-16 10:09:09,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c034bf75/4c76402dbb0945988d2271017ab8e47d/FLAG40d0f567d [2022-10-16 10:09:10,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c034bf75/4c76402dbb0945988d2271017ab8e47d [2022-10-16 10:09:10,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:09:10,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:09:10,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:09:10,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:09:10,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:09:10,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69334c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10, skipping insertion in model container [2022-10-16 10:09:10,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:09:10,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:09:10,273 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-examples/standard_copy2_ground-2.i[816,829] [2022-10-16 10:09:10,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:09:10,300 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:09:10,313 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-examples/standard_copy2_ground-2.i[816,829] [2022-10-16 10:09:10,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:09:10,336 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:09:10,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10 WrapperNode [2022-10-16 10:09:10,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:09:10,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:09:10,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:09:10,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:09:10,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,379 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-10-16 10:09:10,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:09:10,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:09:10,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:09:10,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:09:10,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:09:10,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:09:10,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:09:10,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:09:10,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (1/1) ... [2022-10-16 10:09:10,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:09:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:10,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:09:10,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:09:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:09:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:09:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:09:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:09:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:09:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:09:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:09:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:09:10,603 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:09:10,605 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:09:10,882 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:09:10,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:09:10,890 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 10:09:10,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:09:10 BoogieIcfgContainer [2022-10-16 10:09:10,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:09:10,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:09:10,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:09:10,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:09:10,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:09:10" (1/3) ... [2022-10-16 10:09:10,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617535bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:09:10, skipping insertion in model container [2022-10-16 10:09:10,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:09:10" (2/3) ... [2022-10-16 10:09:10,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617535bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:09:10, skipping insertion in model container [2022-10-16 10:09:10,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:09:10" (3/3) ... [2022-10-16 10:09:10,902 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy2_ground-2.i [2022-10-16 10:09:10,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:09:10,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 10:09:11,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:09:11,025 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;@2b9a66fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:09:11,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 10:09:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 35 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 10:09:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:09:11,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:11,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:09:11,060 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 10:09:11,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:09:11,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:11,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115136578] [2022-10-16 10:09:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:11,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:09:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:11,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115136578] [2022-10-16 10:09:11,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115136578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:11,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:11,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:11,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850698935] [2022-10-16 10:09:11,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:11,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:11,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:11,436 INFO L87 Difference]: Start difference. First operand has 36 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 35 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) 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 10:09:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:11,498 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2022-10-16 10:09:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:11,501 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 10:09:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:11,511 INFO L225 Difference]: With dead ends: 70 [2022-10-16 10:09:11,511 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:09:11,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:09:11,519 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:11,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:11,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:09:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-16 10:09:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-10-16 10:09:11,565 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 5 [2022-10-16 10:09:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:11,566 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-10-16 10:09:11,566 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 10:09:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-10-16 10:09:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:09:11,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:11,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:09:11,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:09:11,568 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 10:09:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:09:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:11,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584923901] [2022-10-16 10:09:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:09:11,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:11,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584923901] [2022-10-16 10:09:11,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584923901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:11,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:11,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:11,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85933328] [2022-10-16 10:09:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:11,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:11,703 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:11,752 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-10-16 10:09:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:09:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:11,757 INFO L225 Difference]: With dead ends: 35 [2022-10-16 10:09:11,757 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 10:09:11,757 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 10:09:11,760 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:11,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 81 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 10:09:11,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-16 10:09:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-10-16 10:09:11,776 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 9 [2022-10-16 10:09:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:11,778 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-10-16 10:09:11,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-10-16 10:09:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:09:11,780 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:11,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:09:11,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:09:11,781 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 10:09:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:09:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:11,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332675249] [2022-10-16 10:09:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:11,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:09:11,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:11,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332675249] [2022-10-16 10:09:11,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332675249] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:11,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765080638] [2022-10-16 10:09:11,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:11,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:11,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:11,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:11,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:09:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:12,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:09:12,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:12,114 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 10:09:12,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:09:12,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765080638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:12,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:09:12,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:09:12,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220036289] [2022-10-16 10:09:12,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:12,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:09:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:12,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:09:12,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:09:12,118 INFO L87 Difference]: Start difference. First operand 34 states and 37 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 10:09:12,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:12,158 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-10-16 10:09:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:09:12,159 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 10:09:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:12,159 INFO L225 Difference]: With dead ends: 34 [2022-10-16 10:09:12,160 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 10:09:12,160 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 10:09:12,162 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:12,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 55 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 10:09:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-10-16 10:09:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.375) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-10-16 10:09:12,169 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 10 [2022-10-16 10:09:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:12,169 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-10-16 10:09:12,169 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 10:09:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-10-16 10:09:12,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:09:12,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:12,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:12,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:12,384 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 10:09:12,386 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 10:09:12,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-16 10:09:12,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:12,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469295288] [2022-10-16 10:09:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:12,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:09:12,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:12,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469295288] [2022-10-16 10:09:12,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469295288] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:12,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041829540] [2022-10-16 10:09:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:12,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:12,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:12,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:12,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:09:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:12,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:09:12,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:09:12,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:09:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041829540] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:12,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:12,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:09:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704672229] [2022-10-16 10:09:12,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:12,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:09:12,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:09:12,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:09:12,610 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:12,663 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2022-10-16 10:09:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:09:12,664 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:09:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:12,665 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:09:12,665 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 10:09:12,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:09:12,667 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 11 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:12,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 162 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 10:09:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 10:09:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.28125) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-10-16 10:09:12,674 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 11 [2022-10-16 10:09:12,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:12,675 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-10-16 10:09:12,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:12,676 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-10-16 10:09:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:09:12,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:12,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:12,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:12,890 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 10:09:12,891 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 10:09:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:12,892 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-16 10:09:12,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:12,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212694632] [2022-10-16 10:09:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:12,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:13,026 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 10:09:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212694632] [2022-10-16 10:09:13,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212694632] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:13,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:13,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:13,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420926626] [2022-10-16 10:09:13,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:13,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:13,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:13,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:13,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:13,039 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:13,094 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-10-16 10:09:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:13,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 10:09:13,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:13,096 INFO L225 Difference]: With dead ends: 66 [2022-10-16 10:09:13,096 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:09:13,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:09:13,102 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:13,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:09:13,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-10-16 10:09:13,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-10-16 10:09:13,121 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2022-10-16 10:09:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:13,124 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-10-16 10:09:13,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,124 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-10-16 10:09:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:09:13,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:13,125 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:13,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:09:13,126 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 10:09:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:13,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-16 10:09:13,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:13,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192344100] [2022-10-16 10:09:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:13,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:09:13,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:13,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192344100] [2022-10-16 10:09:13,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192344100] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:13,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:13,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315588422] [2022-10-16 10:09:13,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:13,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:13,280 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:13,323 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-16 10:09:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:13,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:09:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:13,326 INFO L225 Difference]: With dead ends: 43 [2022-10-16 10:09:13,326 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 10:09:13,327 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 10:09:13,331 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:13,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 10:09:13,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 10:09:13,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-10-16 10:09:13,345 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 23 [2022-10-16 10:09:13,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:13,345 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-10-16 10:09:13,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-10-16 10:09:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:09:13,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:13,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:13,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:09:13,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:09:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-16 10:09:13,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:13,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106362452] [2022-10-16 10:09:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:13,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:13,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106362452] [2022-10-16 10:09:13,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106362452] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:13,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583224843] [2022-10-16 10:09:13,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:13,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:13,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:13,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:13,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:09:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:13,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:09:13,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:13,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:13,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583224843] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:13,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:13,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 10:09:13,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364284751] [2022-10-16 10:09:13,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:13,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:09:13,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:09:13,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:09:13,783 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:13,900 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2022-10-16 10:09:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:09:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:09:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:13,902 INFO L225 Difference]: With dead ends: 85 [2022-10-16 10:09:13,902 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 10:09:13,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:09:13,904 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:13,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 79 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:09:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 10:09:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 10:09:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.150943396226415) internal successors, (61), 57 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2022-10-16 10:09:13,912 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 24 [2022-10-16 10:09:13,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:13,912 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2022-10-16 10:09:13,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2022-10-16 10:09:13,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:09:13,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:13,914 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:13,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:14,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:14,128 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 10:09:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-16 10:09:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:14,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774975907] [2022-10-16 10:09:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:14,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774975907] [2022-10-16 10:09:14,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774975907] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:14,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667194706] [2022-10-16 10:09:14,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:09:14,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:14,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:14,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:14,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:09:14,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:09:14,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:09:14,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:09:14,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:14,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:14,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667194706] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:14,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:14,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:09:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903779355] [2022-10-16 10:09:14,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:14,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:09:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:09:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:09:14,913 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:15,209 INFO L93 Difference]: Finished difference Result 117 states and 130 transitions. [2022-10-16 10:09:15,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:09:15,210 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 10:09:15,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:15,211 INFO L225 Difference]: With dead ends: 117 [2022-10-16 10:09:15,211 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:09:15,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 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 10:09:15,213 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 99 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:15,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 156 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:09:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:09:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 10:09:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 89 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2022-10-16 10:09:15,224 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 40 [2022-10-16 10:09:15,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:15,224 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2022-10-16 10:09:15,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2022-10-16 10:09:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 10:09:15,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:15,227 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:15,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:15,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:15,440 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 10:09:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-16 10:09:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:15,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278945256] [2022-10-16 10:09:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:09:16,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:16,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278945256] [2022-10-16 10:09:16,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278945256] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:16,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919279500] [2022-10-16 10:09:16,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:09:16,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:16,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:16,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:09:16,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:09:16,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:09:16,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:09:16,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:09:16,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:09:16,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919279500] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:09:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-16 10:09:16,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737143029] [2022-10-16 10:09:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:16,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:09:16,628 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:16,667 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2022-10-16 10:09:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:16,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-16 10:09:16,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:16,668 INFO L225 Difference]: With dead ends: 90 [2022-10-16 10:09:16,669 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 10:09:16,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:09:16,670 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:16,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:16,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 10:09:16,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-10-16 10:09:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.0853658536585367) internal successors, (89), 85 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2022-10-16 10:09:16,680 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 72 [2022-10-16 10:09:16,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:16,680 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2022-10-16 10:09:16,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2022-10-16 10:09:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 10:09:16,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:16,682 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:16,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:16,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:16,898 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:09:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:16,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-16 10:09:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:16,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131594348] [2022-10-16 10:09:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:16,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:09:17,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:17,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131594348] [2022-10-16 10:09:17,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131594348] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:17,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407356795] [2022-10-16 10:09:17,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:17,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:17,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:17,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:17,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:09:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:09:17,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:09:17,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:09:18,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407356795] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:18,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:18,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-16 10:09:18,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891945838] [2022-10-16 10:09:18,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:18,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:09:18,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:09:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:09:18,735 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:19,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:19,708 INFO L93 Difference]: Finished difference Result 185 states and 207 transitions. [2022-10-16 10:09:19,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 10:09:19,709 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 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 73 [2022-10-16 10:09:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:19,710 INFO L225 Difference]: With dead ends: 185 [2022-10-16 10:09:19,711 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 10:09:19,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 10:09:19,716 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 233 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:19,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 186 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:09:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 10:09:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2022-10-16 10:09:19,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 150 states have (on average 1.0466666666666666) internal successors, (157), 153 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:19,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2022-10-16 10:09:19,729 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 73 [2022-10-16 10:09:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:19,730 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2022-10-16 10:09:19,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:19,730 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2022-10-16 10:09:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 10:09:19,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:19,733 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:19,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:19,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:19,948 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:09:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:19,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-16 10:09:19,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:19,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699251918] [2022-10-16 10:09:19,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-16 10:09:20,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:20,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699251918] [2022-10-16 10:09:20,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699251918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:20,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:20,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:20,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565963459] [2022-10-16 10:09:20,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:20,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:20,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:20,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:20,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:20,164 INFO L87 Difference]: Start difference. First operand 154 states and 157 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:20,198 INFO L93 Difference]: Finished difference Result 159 states and 162 transitions. [2022-10-16 10:09:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:20,199 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 141 [2022-10-16 10:09:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:20,201 INFO L225 Difference]: With dead ends: 159 [2022-10-16 10:09:20,201 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 10:09:20,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:09:20,203 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:20,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 10:09:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-10-16 10:09:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 153 states have (on average 1.0457516339869282) internal successors, (160), 156 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 160 transitions. [2022-10-16 10:09:20,225 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 160 transitions. Word has length 141 [2022-10-16 10:09:20,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:20,226 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 160 transitions. [2022-10-16 10:09:20,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,227 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 160 transitions. [2022-10-16 10:09:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 10:09:20,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:20,236 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:20,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:09:20,236 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 10:09:20,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-16 10:09:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826005629] [2022-10-16 10:09:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 10:09:20,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:20,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826005629] [2022-10-16 10:09:20,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826005629] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:20,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:20,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:20,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990061175] [2022-10-16 10:09:20,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:20,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:20,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:20,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:20,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:20,427 INFO L87 Difference]: Start difference. First operand 157 states and 160 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:20,459 INFO L93 Difference]: Finished difference Result 157 states and 160 transitions. [2022-10-16 10:09:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:20,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-10-16 10:09:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:20,461 INFO L225 Difference]: With dead ends: 157 [2022-10-16 10:09:20,462 INFO L226 Difference]: Without dead ends: 156 [2022-10-16 10:09:20,462 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 10:09:20,463 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:20,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 58 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-16 10:09:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-10-16 10:09:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 153 states have (on average 1.0392156862745099) internal successors, (159), 155 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 159 transitions. [2022-10-16 10:09:20,476 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 159 transitions. Word has length 145 [2022-10-16 10:09:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:20,477 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 159 transitions. [2022-10-16 10:09:20,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 159 transitions. [2022-10-16 10:09:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 10:09:20,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:20,480 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:20,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:09:20,480 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:09:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-16 10:09:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:20,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806082544] [2022-10-16 10:09:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:20,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:23,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:23,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806082544] [2022-10-16 10:09:23,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806082544] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:23,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479286169] [2022-10-16 10:09:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:23,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:23,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:23,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:23,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:09:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:23,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:09:23,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:23,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:27,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479286169] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:27,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:27,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:09:27,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583953289] [2022-10-16 10:09:27,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:27,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:09:27,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:09:27,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:09:27,280 INFO L87 Difference]: Start difference. First operand 156 states and 159 transitions. Second operand has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:30,358 INFO L93 Difference]: Finished difference Result 313 states and 350 transitions. [2022-10-16 10:09:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:09:30,360 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 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 146 [2022-10-16 10:09:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:30,365 INFO L225 Difference]: With dead ends: 313 [2022-10-16 10:09:30,365 INFO L226 Difference]: Without dead ends: 284 [2022-10-16 10:09:30,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:09:30,379 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 571 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:30,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 237 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:09:30,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-10-16 10:09:30,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2022-10-16 10:09:30,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 281 states have (on average 1.0213523131672597) internal successors, (287), 283 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 287 transitions. [2022-10-16 10:09:30,394 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 287 transitions. Word has length 146 [2022-10-16 10:09:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:30,395 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 287 transitions. [2022-10-16 10:09:30,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:09:30,396 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 287 transitions. [2022-10-16 10:09:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 10:09:30,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:30,401 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:30,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:30,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:30,616 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 10:09:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-16 10:09:30,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:30,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098022014] [2022-10-16 10:09:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:41,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098022014] [2022-10-16 10:09:41,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098022014] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:41,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056543754] [2022-10-16 10:09:41,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:09:41,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:41,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:41,186 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:41,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:09:41,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:09:41,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:09:41,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:09:41,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:41,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:09:55,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056543754] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:55,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:55,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 10:09:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369929410] [2022-10-16 10:09:55,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:55,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 10:09:55,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 10:09:55,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 10:09:55,955 INFO L87 Difference]: Start difference. First operand 284 states and 287 transitions. Second operand has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:08,868 INFO L93 Difference]: Finished difference Result 569 states and 638 transitions. [2022-10-16 10:10:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 10:10:08,869 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 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 274 [2022-10-16 10:10:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:08,872 INFO L225 Difference]: With dead ends: 569 [2022-10-16 10:10:08,872 INFO L226 Difference]: Without dead ends: 540 [2022-10-16 10:10:08,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:10:08,882 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1163 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:08,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 238 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:10:08,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-10-16 10:10:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2022-10-16 10:10:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 537 states have (on average 1.011173184357542) internal successors, (543), 539 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 543 transitions. [2022-10-16 10:10:08,901 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 543 transitions. Word has length 274 [2022-10-16 10:10:08,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:08,902 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 543 transitions. [2022-10-16 10:10:08,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 543 transitions. [2022-10-16 10:10:08,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-10-16 10:10:08,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:08,914 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:08,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:09,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:10:09,128 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 10:10:09,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:09,129 INFO L85 PathProgramCache]: Analyzing trace with hash 570159526, now seen corresponding path program 3 times [2022-10-16 10:10:09,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:09,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327909894] [2022-10-16 10:10:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:10:48,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:48,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327909894] [2022-10-16 10:10:48,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327909894] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:48,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88860108] [2022-10-16 10:10:48,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:10:48,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:48,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:48,405 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:48,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:10:48,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:10:48,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:10:48,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:10:48,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:10:48,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:10:48,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88860108] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:48,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:10:48,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 10:10:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430650815] [2022-10-16 10:10:48,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:48,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:48,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16644, Invalid=50178, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:10:48,880 INFO L87 Difference]: Start difference. First operand 540 states and 543 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:49,037 INFO L93 Difference]: Finished difference Result 540 states and 543 transitions. [2022-10-16 10:10:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 530 [2022-10-16 10:10:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:49,044 INFO L225 Difference]: With dead ends: 540 [2022-10-16 10:10:49,044 INFO L226 Difference]: Without dead ends: 539 [2022-10-16 10:10:49,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 10:10:49,052 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:49,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 45 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-10-16 10:10:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 536. [2022-10-16 10:10:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 534 states have (on average 1.0093632958801497) internal successors, (539), 535 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 539 transitions. [2022-10-16 10:10:49,071 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 539 transitions. Word has length 530 [2022-10-16 10:10:49,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:49,072 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 539 transitions. [2022-10-16 10:10:49,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 539 transitions. [2022-10-16 10:10:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-10-16 10:10:49,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:49,085 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:49,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:49,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:10:49,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:10:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1789374196, now seen corresponding path program 1 times [2022-10-16 10:10:49,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:49,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260493673] [2022-10-16 10:10:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:10:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:49,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260493673] [2022-10-16 10:10:49,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260493673] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:49,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241150744] [2022-10-16 10:10:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:49,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:49,995 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:50,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:10:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:50,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:10:50,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:11:11,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:12:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:12:08,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241150744] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:12:08,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:12:08,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 515 [2022-10-16 10:12:08,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178799229] [2022-10-16 10:12:08,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:12:08,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-10-16 10:12:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:08,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-10-16 10:12:08,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65799, Invalid=198911, Unknown=0, NotChecked=0, Total=264710 [2022-10-16 10:12:08,640 INFO L87 Difference]: Start difference. First operand 536 states and 539 transitions. Second operand has 515 states, 515 states have (on average 2.0524271844660196) internal successors, (1057), 515 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)