/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/sorting_selectionsort_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:08:48,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:08:48,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:08:48,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:08:48,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:08:48,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:08:48,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:08:48,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:08:48,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:08:48,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:08:48,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:08:48,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:08:48,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:08:48,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:08:48,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:08:48,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:08:48,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:08:48,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:08:48,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:08:48,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:08:48,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:08:48,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:08:48,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:08:48,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:08:48,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:08:48,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:08:48,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:08:48,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:08:48,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:08:48,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:08:48,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:08:48,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:08:48,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:08:48,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:08:48,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:08:48,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:08:48,538 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 10:08:48,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:08:48,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:08:48,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:08:48,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:08:48,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:08:48,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:08:48,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:08:48,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:08:48,596 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:08:48,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:08:48,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:08:48,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:08:48,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:08:48,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:08:48,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:08:48,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:08:48,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:08:48,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:08:48,599 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:08:48,600 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:08:48,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:08:48,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:08:48,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:08:48,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:08:48,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:08:48,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:08:48,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:08:48,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:08:48,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:08:48,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:08:48,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:08:48,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:08:48,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:08:48,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:08:49,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:08:49,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:08:49,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:08:49,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:08:49,104 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:08:49,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_selectionsort_ground-2.i [2022-10-16 10:08:49,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04815e51/20b8a3638eb24e95a3f4abd658b0d7ea/FLAGda544b54f [2022-10-16 10:08:49,802 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:08:49,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_ground-2.i [2022-10-16 10:08:49,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04815e51/20b8a3638eb24e95a3f4abd658b0d7ea/FLAGda544b54f [2022-10-16 10:08:50,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04815e51/20b8a3638eb24e95a3f4abd658b0d7ea [2022-10-16 10:08:50,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:08:50,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:08:50,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:08:50,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:08:50,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:08:50,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa74562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50, skipping insertion in model container [2022-10-16 10:08:50,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:08:50,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:08:50,347 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/sorting_selectionsort_ground-2.i[823,836] [2022-10-16 10:08:50,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:08:50,414 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:08:50,434 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/sorting_selectionsort_ground-2.i[823,836] [2022-10-16 10:08:50,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:08:50,492 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:08:50,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50 WrapperNode [2022-10-16 10:08:50,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:08:50,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:08:50,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:08:50,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:08:50,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,545 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2022-10-16 10:08:50,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:08:50,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:08:50,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:08:50,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:08:50,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:08:50,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:08:50,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:08:50,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:08:50,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (1/1) ... [2022-10-16 10:08:50,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:08:50,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:50,627 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 10:08:50,650 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 10:08:50,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:08:50,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:08:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:08:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:08:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:08:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:08:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:08:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 10:08:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 10:08:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:08:50,800 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:08:50,803 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:08:51,089 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:08:51,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:08:51,099 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-16 10:08:51,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:08:51 BoogieIcfgContainer [2022-10-16 10:08:51,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:08:51,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:08:51,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:08:51,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:08:51,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:08:50" (1/3) ... [2022-10-16 10:08:51,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f2b53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:08:51, skipping insertion in model container [2022-10-16 10:08:51,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:50" (2/3) ... [2022-10-16 10:08:51,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f2b53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:08:51, skipping insertion in model container [2022-10-16 10:08:51,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:08:51" (3/3) ... [2022-10-16 10:08:51,113 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_ground-2.i [2022-10-16 10:08:51,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:08:51,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-16 10:08:51,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:08:51,213 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;@31bf29fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:08:51,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-10-16 10:08:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 54 states have (on average 1.7592592592592593) internal successors, (95), 76 states have internal predecessors, (95), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:08:51,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:51,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:08:51,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:51,236 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:08:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:51,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220188409] [2022-10-16 10:08:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:51,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:51,547 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 10:08:51,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:51,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220188409] [2022-10-16 10:08:51,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220188409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:51,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:51,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151291510] [2022-10-16 10:08:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:51,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:51,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:51,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:51,613 INFO L87 Difference]: Start difference. First operand has 81 states, 54 states have (on average 1.7592592592592593) internal successors, (95), 76 states have internal predecessors, (95), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 10:08:51,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:51,754 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2022-10-16 10:08:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:51,760 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 10:08:51,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:51,778 INFO L225 Difference]: With dead ends: 160 [2022-10-16 10:08:51,778 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 10:08:51,784 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 10:08:51,799 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 3 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:51,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 260 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:51,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 10:08:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-10-16 10:08:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 75 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2022-10-16 10:08:51,879 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 5 [2022-10-16 10:08:51,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:51,880 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2022-10-16 10:08:51,881 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 10:08:51,882 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2022-10-16 10:08:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:08:51,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:51,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:08:51,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:08:51,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:08:51,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:51,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243729781] [2022-10-16 10:08:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:51,996 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 10:08:51,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:51,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243729781] [2022-10-16 10:08:51,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243729781] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:51,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:51,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:51,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315644891] [2022-10-16 10:08:51,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:51,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:51,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:52,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:52,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:52,001 INFO L87 Difference]: Start difference. First operand 80 states and 91 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 10:08:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:52,031 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2022-10-16 10:08:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:52,032 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 10:08:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:52,034 INFO L225 Difference]: With dead ends: 80 [2022-10-16 10:08:52,034 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 10:08:52,034 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 10:08:52,036 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 5 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 240 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 10:08:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 240 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 10:08:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-10-16 10:08:52,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 74 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2022-10-16 10:08:52,048 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 9 [2022-10-16 10:08:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:52,049 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2022-10-16 10:08:52,049 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 10:08:52,049 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2022-10-16 10:08:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:08:52,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:52,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:52,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:08:52,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1607293684, now seen corresponding path program 1 times [2022-10-16 10:08:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:52,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629193207] [2022-10-16 10:08:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:52,185 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 10:08:52,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:52,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629193207] [2022-10-16 10:08:52,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629193207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:52,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825415246] [2022-10-16 10:08:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:52,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:52,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:52,192 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 10:08:52,215 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 10:08:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:52,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:52,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:52,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:52,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825415246] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:52,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:52,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216745478] [2022-10-16 10:08:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:52,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:52,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:52,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:52,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:52,294 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 10:08:52,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:52,373 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2022-10-16 10:08:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:52,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 10:08:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:52,377 INFO L225 Difference]: With dead ends: 144 [2022-10-16 10:08:52,377 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 10:08:52,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:52,380 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 50 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:52,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 133 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 10:08:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2022-10-16 10:08:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.5802469135802468) internal successors, (128), 101 states have internal predecessors, (128), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2022-10-16 10:08:52,408 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 138 transitions. Word has length 10 [2022-10-16 10:08:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:52,409 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 138 transitions. [2022-10-16 10:08:52,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 10:08:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 138 transitions. [2022-10-16 10:08:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:08:52,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:52,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:08:52,442 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 10:08:52,621 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 10:08:52,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:52,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:52,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:08:52,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:52,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114257242] [2022-10-16 10:08:52,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:52,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:52,816 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 10:08:52,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:52,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114257242] [2022-10-16 10:08:52,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114257242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:52,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84170277] [2022-10-16 10:08:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:52,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:52,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:52,821 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 10:08:52,824 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 10:08:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:52,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:08:52,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:53,005 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 10:08:53,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:53,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84170277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:53,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:53,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:08:53,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363098115] [2022-10-16 10:08:53,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:53,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:08:53,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:53,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:08:53,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:08:53,009 INFO L87 Difference]: Start difference. First operand 108 states and 138 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 10:08:53,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:53,083 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2022-10-16 10:08:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:08:53,083 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 10:08:53,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:53,085 INFO L225 Difference]: With dead ends: 108 [2022-10-16 10:08:53,085 INFO L226 Difference]: Without dead ends: 107 [2022-10-16 10:08:53,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:08:53,087 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 144 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:53,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 166 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-16 10:08:53,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-10-16 10:08:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 states have internal predecessors, (124), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2022-10-16 10:08:53,112 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 10 [2022-10-16 10:08:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:53,112 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2022-10-16 10:08:53,113 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 10:08:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2022-10-16 10:08:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:08:53,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:53,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:53,161 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 10:08:53,328 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 10:08:53,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1713503285, now seen corresponding path program 1 times [2022-10-16 10:08:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:53,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134253344] [2022-10-16 10:08:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:53,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:53,400 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 10:08:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:53,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134253344] [2022-10-16 10:08:53,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134253344] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:53,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33620175] [2022-10-16 10:08:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:53,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:53,403 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 10:08:53,416 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 10:08:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:53,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:53,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:53,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:53,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33620175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:53,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:53,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:53,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733351627] [2022-10-16 10:08:53,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:53,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:53,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:53,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:53,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:53,476 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 10:08:53,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:53,510 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2022-10-16 10:08:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:53,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:08:53,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:53,512 INFO L225 Difference]: With dead ends: 104 [2022-10-16 10:08:53,513 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 10:08:53,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:53,515 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 68 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 74 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 10:08:53,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 10:08:53,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-16 10:08:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 95 states have internal predecessors, (121), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2022-10-16 10:08:53,531 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 11 [2022-10-16 10:08:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:53,531 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2022-10-16 10:08:53,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 10:08:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2022-10-16 10:08:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:08:53,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:53,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:53,568 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 10:08:53,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:53,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:53,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1289978878, now seen corresponding path program 1 times [2022-10-16 10:08:53,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:53,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540649902] [2022-10-16 10:08:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:53,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:53,866 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 10:08:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:53,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540649902] [2022-10-16 10:08:53,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540649902] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:53,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819725594] [2022-10-16 10:08:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:53,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:53,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:53,869 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 10:08:53,878 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 10:08:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:53,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:53,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:53,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:53,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819725594] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:53,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:53,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:53,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530807803] [2022-10-16 10:08:53,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:53,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:53,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:53,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:53,953 INFO L87 Difference]: Start difference. First operand 102 states and 131 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:53,970 INFO L93 Difference]: Finished difference Result 102 states and 131 transitions. [2022-10-16 10:08:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:08:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:53,972 INFO L225 Difference]: With dead ends: 102 [2022-10-16 10:08:53,972 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 10:08:53,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:53,974 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:53,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 151 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:53,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 10:08:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-16 10:08:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 78 states have (on average 1.5256410256410255) internal successors, (119), 94 states have internal predecessors, (119), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 129 transitions. [2022-10-16 10:08:53,988 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 129 transitions. Word has length 14 [2022-10-16 10:08:53,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:53,988 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 129 transitions. [2022-10-16 10:08:53,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:53,989 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 129 transitions. [2022-10-16 10:08:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:08:53,989 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:53,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:54,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 10:08:54,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:54,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:54,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1334639472, now seen corresponding path program 1 times [2022-10-16 10:08:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:54,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061258763] [2022-10-16 10:08:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:54,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:54,286 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 10:08:54,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061258763] [2022-10-16 10:08:54,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061258763] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607373785] [2022-10-16 10:08:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:54,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:54,289 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 10:08:54,314 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 10:08:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:54,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:08:54,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:54,380 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 10:08:54,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:54,424 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 10:08:54,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607373785] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:54,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:54,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:08:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284555722] [2022-10-16 10:08:54,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:54,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:08:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:08:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:08:54,427 INFO L87 Difference]: Start difference. First operand 101 states and 129 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:54,482 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2022-10-16 10:08:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:08:54,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:08:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:54,484 INFO L225 Difference]: With dead ends: 203 [2022-10-16 10:08:54,484 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 10:08:54,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 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 10:08:54,486 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 17 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:54,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 309 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 10:08:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-10-16 10:08:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 102 states have internal predecessors, (127), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2022-10-16 10:08:54,512 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 15 [2022-10-16 10:08:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:54,513 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2022-10-16 10:08:54,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2022-10-16 10:08:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:08:54,514 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:54,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:54,549 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 10:08:54,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:54,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1215876728, now seen corresponding path program 2 times [2022-10-16 10:08:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082143178] [2022-10-16 10:08:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:54,820 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 10:08:54,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:54,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082143178] [2022-10-16 10:08:54,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082143178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:54,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:54,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:54,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524953936] [2022-10-16 10:08:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:54,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:54,827 INFO L87 Difference]: Start difference. First operand 109 states and 137 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 10:08:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:54,898 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2022-10-16 10:08:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:08:54,899 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 10:08:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:54,900 INFO L225 Difference]: With dead ends: 119 [2022-10-16 10:08:54,900 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 10:08:54,901 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 10:08:54,902 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 128 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:54,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 148 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 10:08:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2022-10-16 10:08:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 102 states have internal predecessors, (126), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2022-10-16 10:08:54,914 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 23 [2022-10-16 10:08:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:54,915 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-10-16 10:08:54,915 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 10:08:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2022-10-16 10:08:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:08:54,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:54,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:54,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:08:54,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:54,917 INFO L85 PathProgramCache]: Analyzing trace with hash 961079529, now seen corresponding path program 1 times [2022-10-16 10:08:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:54,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058177909] [2022-10-16 10:08:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:54,956 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 10:08:54,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058177909] [2022-10-16 10:08:54,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058177909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:54,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:54,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741605112] [2022-10-16 10:08:54,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:54,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:54,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:54,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:08:54,959 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,004 INFO L93 Difference]: Finished difference Result 257 states and 331 transitions. [2022-10-16 10:08:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:08:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,007 INFO L225 Difference]: With dead ends: 257 [2022-10-16 10:08:55,007 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 10:08:55,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:08:55,009 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 138 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 10:08:55,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 119. [2022-10-16 10:08:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.46875) internal successors, (141), 112 states have internal predecessors, (141), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 151 transitions. [2022-10-16 10:08:55,024 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 151 transitions. Word has length 24 [2022-10-16 10:08:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,024 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 151 transitions. [2022-10-16 10:08:55,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 151 transitions. [2022-10-16 10:08:55,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:08:55,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,025 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 10:08:55,026 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:55,027 INFO L85 PathProgramCache]: Analyzing trace with hash 961139111, now seen corresponding path program 1 times [2022-10-16 10:08:55,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:55,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722688342] [2022-10-16 10:08:55,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,097 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 10:08:55,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:55,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722688342] [2022-10-16 10:08:55,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722688342] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:55,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:55,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:08:55,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003119058] [2022-10-16 10:08:55,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:55,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:55,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:55,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:55,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:55,104 INFO L87 Difference]: Start difference. First operand 119 states and 151 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,185 INFO L93 Difference]: Finished difference Result 225 states and 277 transitions. [2022-10-16 10:08:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:08:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,187 INFO L225 Difference]: With dead ends: 225 [2022-10-16 10:08:55,188 INFO L226 Difference]: Without dead ends: 134 [2022-10-16 10:08:55,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:55,189 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 48 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 184 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-16 10:08:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 120. [2022-10-16 10:08:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 113 states have internal predecessors, (142), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2022-10-16 10:08:55,201 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 24 [2022-10-16 10:08:55,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,202 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2022-10-16 10:08:55,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2022-10-16 10:08:55,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:08:55,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 10:08:55,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:55,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:55,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1852200772, now seen corresponding path program 1 times [2022-10-16 10:08:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:55,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506923358] [2022-10-16 10:08:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:08:55,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:55,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506923358] [2022-10-16 10:08:55,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506923358] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:55,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:55,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:08:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529072907] [2022-10-16 10:08:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:55,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:55,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:55,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:55,285 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,358 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2022-10-16 10:08:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:55,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:08:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,360 INFO L225 Difference]: With dead ends: 209 [2022-10-16 10:08:55,360 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:08:55,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:55,362 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 32 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 147 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:08:55,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 110. [2022-10-16 10:08:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.4204545454545454) internal successors, (125), 104 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:55,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-10-16 10:08:55,373 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 28 [2022-10-16 10:08:55,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,373 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-10-16 10:08:55,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:55,374 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-10-16 10:08:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 10:08:55,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:08:55,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:55,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:55,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1822642742, now seen corresponding path program 1 times [2022-10-16 10:08:55,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:55,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624933027] [2022-10-16 10:08:55,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 10:08:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:08:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:55,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624933027] [2022-10-16 10:08:55,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624933027] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:55,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:55,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:08:55,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127250882] [2022-10-16 10:08:55,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:55,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:08:55,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:08:55,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:08:55,497 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,627 INFO L93 Difference]: Finished difference Result 157 states and 184 transitions. [2022-10-16 10:08:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:08:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-10-16 10:08:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,630 INFO L225 Difference]: With dead ends: 157 [2022-10-16 10:08:55,630 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 10:08:55,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:08:55,631 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 55 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 251 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 10:08:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 121. [2022-10-16 10:08:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 114 states have internal predecessors, (136), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-10-16 10:08:55,644 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 37 [2022-10-16 10:08:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,645 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-10-16 10:08:55,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-10-16 10:08:55,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 10:08:55,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,647 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:08:55,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:55,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:55,648 INFO L85 PathProgramCache]: Analyzing trace with hash 308024112, now seen corresponding path program 1 times [2022-10-16 10:08:55,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:55,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49669304] [2022-10-16 10:08:55,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 10:08:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:08:55,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:55,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49669304] [2022-10-16 10:08:55,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49669304] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:55,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101693877] [2022-10-16 10:08:55,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:55,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:55,771 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 10:08:55,795 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 10:08:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:55,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 10:08:55,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:55,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101693877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:55,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:55,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 10:08:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51575845] [2022-10-16 10:08:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:55,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:55,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:55,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:08:55,865 INFO L87 Difference]: Start difference. First operand 121 states and 146 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,892 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2022-10-16 10:08:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:55,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-10-16 10:08:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,894 INFO L225 Difference]: With dead ends: 121 [2022-10-16 10:08:55,895 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 10:08:55,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:08:55,896 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 46 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 94 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 10:08:55,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2022-10-16 10:08:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 92 states have (on average 1.358695652173913) internal successors, (125), 106 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 133 transitions. [2022-10-16 10:08:55,907 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 133 transitions. Word has length 43 [2022-10-16 10:08:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,908 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 133 transitions. [2022-10-16 10:08:55,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 133 transitions. [2022-10-16 10:08:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 10:08:55,910 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,951 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 10:08:56,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:56,123 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -648295044, now seen corresponding path program 1 times [2022-10-16 10:08:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:56,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392505828] [2022-10-16 10:08:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:56,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 10:08:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 10:08:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 10:08:56,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392505828] [2022-10-16 10:08:56,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392505828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:56,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:56,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738594880] [2022-10-16 10:08:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:56,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:56,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:56,202 INFO L87 Difference]: Start difference. First operand 112 states and 133 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:08:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:56,262 INFO L93 Difference]: Finished difference Result 126 states and 149 transitions. [2022-10-16 10:08:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-10-16 10:08:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:56,265 INFO L225 Difference]: With dead ends: 126 [2022-10-16 10:08:56,265 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:08:56,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 10:08:56,266 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 37 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:56,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 176 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:08:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 110. [2022-10-16 10:08:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 104 states have internal predecessors, (123), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:56,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2022-10-16 10:08:56,277 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 47 [2022-10-16 10:08:56,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:56,278 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2022-10-16 10:08:56,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:08:56,278 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2022-10-16 10:08:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:08:56,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:56,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:56,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 10:08:56,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1377690264, now seen corresponding path program 1 times [2022-10-16 10:08:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:56,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692591321] [2022-10-16 10:08:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 10:08:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 10:08:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,386 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 10:08:56,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:56,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692591321] [2022-10-16 10:08:56,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692591321] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:56,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083576837] [2022-10-16 10:08:56,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:56,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:56,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:56,389 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 10:08:56,407 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 10:08:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:08:56,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:56,535 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 10:08:56,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 10:08:56,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083576837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:56,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:56,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-10-16 10:08:56,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596153843] [2022-10-16 10:08:56,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:56,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:08:56,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:08:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:08:56,647 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:56,952 INFO L93 Difference]: Finished difference Result 243 states and 295 transitions. [2022-10-16 10:08:56,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:08:56,952 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-10-16 10:08:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:56,954 INFO L225 Difference]: With dead ends: 243 [2022-10-16 10:08:56,954 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 10:08:56,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:08:56,957 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 106 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:56,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 478 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 10:08:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 133. [2022-10-16 10:08:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 127 states have internal predecessors, (147), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2022-10-16 10:08:56,974 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 48 [2022-10-16 10:08:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:56,974 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2022-10-16 10:08:56,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:56,975 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2022-10-16 10:08:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 10:08:56,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:56,978 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:57,012 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 10:08:57,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:57,192 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:57,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:57,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1334819837, now seen corresponding path program 2 times [2022-10-16 10:08:57,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:57,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281573608] [2022-10-16 10:08:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:57,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 10:08:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 10:08:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,391 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-16 10:08:57,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:57,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281573608] [2022-10-16 10:08:57,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281573608] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:57,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609617440] [2022-10-16 10:08:57,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:08:57,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:57,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:57,393 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 10:08:57,417 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 10:08:57,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:08:57,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:08:57,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:08:57,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:08:57,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:08:57,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609617440] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:57,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:57,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 17] total 36 [2022-10-16 10:08:57,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669284236] [2022-10-16 10:08:57,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:57,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:08:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:08:57,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:08:57,959 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand has 36 states, 36 states have (on average 2.9166666666666665) internal successors, (105), 36 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:58,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:58,685 INFO L93 Difference]: Finished difference Result 290 states and 349 transitions. [2022-10-16 10:08:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:08:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.9166666666666665) internal successors, (105), 36 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2022-10-16 10:08:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:58,687 INFO L225 Difference]: With dead ends: 290 [2022-10-16 10:08:58,687 INFO L226 Difference]: Without dead ends: 188 [2022-10-16 10:08:58,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1048, Invalid=3112, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 10:08:58,690 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 177 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:58,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 834 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:08:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-16 10:08:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 173. [2022-10-16 10:08:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 155 states have (on average 1.2193548387096773) internal successors, (189), 167 states have internal predecessors, (189), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 197 transitions. [2022-10-16 10:08:58,705 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 197 transitions. Word has length 68 [2022-10-16 10:08:58,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:58,705 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 197 transitions. [2022-10-16 10:08:58,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.9166666666666665) internal successors, (105), 36 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 197 transitions. [2022-10-16 10:08:58,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 10:08:58,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:58,707 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:58,746 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 10:08:58,921 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,SelfDestructingSolverStorable15 [2022-10-16 10:08:58,921 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:58,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash -406709250, now seen corresponding path program 3 times [2022-10-16 10:08:58,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:58,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590749079] [2022-10-16 10:08:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:58,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 10:08:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 10:08:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-10-16 10:08:59,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:59,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590749079] [2022-10-16 10:08:59,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590749079] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:59,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236512008] [2022-10-16 10:08:59,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:08:59,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:59,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:59,153 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 10:08:59,157 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 10:08:59,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:08:59,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:08:59,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:08:59,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2022-10-16 10:08:59,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:59,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236512008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:59,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:59,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 10:08:59,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214301071] [2022-10-16 10:08:59,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:59,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:59,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:59,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:59,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:08:59,257 INFO L87 Difference]: Start difference. First operand 173 states and 197 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:08:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:59,307 INFO L93 Difference]: Finished difference Result 180 states and 206 transitions. [2022-10-16 10:08:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:59,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2022-10-16 10:08:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:59,309 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:08:59,309 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 10:08:59,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:08:59,311 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 50 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:59,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 180 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 10:08:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 168. [2022-10-16 10:08:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 152 states have (on average 1.2171052631578947) internal successors, (185), 162 states have internal predecessors, (185), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:08:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 193 transitions. [2022-10-16 10:08:59,325 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 193 transitions. Word has length 104 [2022-10-16 10:08:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:59,326 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 193 transitions. [2022-10-16 10:08:59,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:08:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 193 transitions. [2022-10-16 10:08:59,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 10:08:59,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:59,327 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:59,364 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 10:08:59,541 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,SelfDestructingSolverStorable16 [2022-10-16 10:08:59,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:08:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1583237946, now seen corresponding path program 1 times [2022-10-16 10:08:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:59,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360734425] [2022-10-16 10:08:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:59,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 10:08:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-10-16 10:08:59,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:59,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360734425] [2022-10-16 10:08:59,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360734425] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:59,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901735868] [2022-10-16 10:08:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:59,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:59,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:59,720 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 10:08:59,727 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 10:08:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:59,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:08:59,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 10:09:00,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 10:09:01,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901735868] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:01,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:01,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 33, 33] total 68 [2022-10-16 10:09:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852666671] [2022-10-16 10:09:01,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:01,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 10:09:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:01,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 10:09:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3491, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 10:09:01,458 INFO L87 Difference]: Start difference. First operand 168 states and 193 transitions. Second operand has 68 states, 68 states have (on average 2.6176470588235294) internal successors, (178), 68 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:03,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:03,520 INFO L93 Difference]: Finished difference Result 387 states and 461 transitions. [2022-10-16 10:09:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-16 10:09:03,521 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.6176470588235294) internal successors, (178), 68 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 104 [2022-10-16 10:09:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:03,524 INFO L225 Difference]: With dead ends: 387 [2022-10-16 10:09:03,524 INFO L226 Difference]: Without dead ends: 282 [2022-10-16 10:09:03,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4430 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4149, Invalid=13143, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 10:09:03,536 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 415 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:03,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 807 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:09:03,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-16 10:09:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 238. [2022-10-16 10:09:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 221 states have (on average 1.1493212669683257) internal successors, (254), 231 states have internal predecessors, (254), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:09:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 264 transitions. [2022-10-16 10:09:03,562 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 264 transitions. Word has length 104 [2022-10-16 10:09:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:03,563 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 264 transitions. [2022-10-16 10:09:03,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.6176470588235294) internal successors, (178), 68 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 264 transitions. [2022-10-16 10:09:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 10:09:03,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:03,570 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:03,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:03,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:09:03,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:09:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash -894385932, now seen corresponding path program 2 times [2022-10-16 10:09:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:03,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838294952] [2022-10-16 10:09:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:03,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 10:09:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 10:09:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1921 trivial. 0 not checked. [2022-10-16 10:09:03,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:03,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838294952] [2022-10-16 10:09:03,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838294952] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:03,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:03,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:09:03,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666880585] [2022-10-16 10:09:03,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:03,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:09:03,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:03,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:09:03,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:09:03,974 INFO L87 Difference]: Start difference. First operand 238 states and 264 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:09:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:03,994 INFO L93 Difference]: Finished difference Result 238 states and 264 transitions. [2022-10-16 10:09:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:09:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-10-16 10:09:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:03,997 INFO L225 Difference]: With dead ends: 238 [2022-10-16 10:09:03,997 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 10:09:03,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:09:03,998 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 53 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:03,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 88 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 10:09:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-10-16 10:09:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 221 states have (on average 1.1402714932126696) internal successors, (252), 230 states have internal predecessors, (252), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:09:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 262 transitions. [2022-10-16 10:09:04,016 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 262 transitions. Word has length 178 [2022-10-16 10:09:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:04,017 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 262 transitions. [2022-10-16 10:09:04,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:09:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 262 transitions. [2022-10-16 10:09:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 10:09:04,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:04,019 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:04,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 10:09:04,020 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:09:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1295796002, now seen corresponding path program 1 times [2022-10-16 10:09:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:04,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844268618] [2022-10-16 10:09:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:04,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 10:09:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 10:09:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2022-10-16 10:09:04,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:04,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844268618] [2022-10-16 10:09:04,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844268618] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:04,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039114648] [2022-10-16 10:09:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:04,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:04,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:04,261 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:04,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:09:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:04,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:09:04,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:09:05,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:09:09,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039114648] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:09,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:09,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 130 [2022-10-16 10:09:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795972233] [2022-10-16 10:09:09,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:09,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:09:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:09,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:09:09,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4165, Invalid=12605, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:09:09,741 INFO L87 Difference]: Start difference. First operand 237 states and 262 transitions. Second operand has 130 states, 130 states have (on average 2.4307692307692306) internal successors, (316), 130 states have internal predecessors, (316), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:16,325 INFO L93 Difference]: Finished difference Result 532 states and 629 transitions. [2022-10-16 10:09:16,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-16 10:09:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.4307692307692306) internal successors, (316), 130 states have internal predecessors, (316), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 179 [2022-10-16 10:09:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:16,329 INFO L225 Difference]: With dead ends: 532 [2022-10-16 10:09:16,329 INFO L226 Difference]: Without dead ends: 422 [2022-10-16 10:09:16,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17765 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=16572, Invalid=48198, Unknown=0, NotChecked=0, Total=64770 [2022-10-16 10:09:16,343 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 691 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:16,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1163 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:09:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-10-16 10:09:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 374. [2022-10-16 10:09:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 357 states have (on average 1.0896358543417366) internal successors, (389), 366 states have internal predecessors, (389), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 10:09:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 401 transitions. [2022-10-16 10:09:16,373 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 401 transitions. Word has length 179 [2022-10-16 10:09:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:16,374 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 401 transitions. [2022-10-16 10:09:16,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.4307692307692306) internal successors, (316), 130 states have internal predecessors, (316), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 401 transitions. [2022-10-16 10:09:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-10-16 10:09:16,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:16,380 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:16,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:09:16,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:16,596 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:09:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:16,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1924408125, now seen corresponding path program 1 times [2022-10-16 10:09:16,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:16,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970516365] [2022-10-16 10:09:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:16,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-10-16 10:09:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 10:09:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7912 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7911 trivial. 0 not checked. [2022-10-16 10:09:17,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:17,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970516365] [2022-10-16 10:09:17,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970516365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:09:17,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:09:17,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:09:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054837052] [2022-10-16 10:09:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:09:17,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:09:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:09:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:09:17,075 INFO L87 Difference]: Start difference. First operand 374 states and 401 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:09:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:17,139 INFO L93 Difference]: Finished difference Result 405 states and 436 transitions. [2022-10-16 10:09:17,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:09:17,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 311 [2022-10-16 10:09:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:17,143 INFO L225 Difference]: With dead ends: 405 [2022-10-16 10:09:17,143 INFO L226 Difference]: Without dead ends: 403 [2022-10-16 10:09:17,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 10:09:17,145 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 26 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:17,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 178 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:09:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-10-16 10:09:17,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 384. [2022-10-16 10:09:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 366 states have (on average 1.0956284153005464) internal successors, (401), 375 states have internal predecessors, (401), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 10:09:17,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 415 transitions. [2022-10-16 10:09:17,173 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 415 transitions. Word has length 311 [2022-10-16 10:09:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:17,173 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 415 transitions. [2022-10-16 10:09:17,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:09:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 415 transitions. [2022-10-16 10:09:17,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-10-16 10:09:17,178 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:17,179 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:17,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 10:09:17,179 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:09:17,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:17,180 INFO L85 PathProgramCache]: Analyzing trace with hash -818858657, now seen corresponding path program 1 times [2022-10-16 10:09:17,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:17,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257785994] [2022-10-16 10:09:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:17,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-10-16 10:09:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 10:09:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7915 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 7911 trivial. 0 not checked. [2022-10-16 10:09:17,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:17,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257785994] [2022-10-16 10:09:17,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257785994] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:17,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940687928] [2022-10-16 10:09:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:17,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:17,681 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:17,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:09:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:17,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:09:17,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 7915 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 10:09:23,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 7915 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 10:09:38,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940687928] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:38,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:38,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 129, 129] total 259 [2022-10-16 10:09:38,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124345344] [2022-10-16 10:09:38,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:38,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-10-16 10:09:38,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:38,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-10-16 10:09:38,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16519, Invalid=50303, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:09:38,232 INFO L87 Difference]: Start difference. First operand 384 states and 415 transitions. Second operand has 259 states, 259 states have (on average 2.250965250965251) internal successors, (583), 259 states have internal predecessors, (583), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:52,095 INFO L93 Difference]: Finished difference Result 805 states and 934 transitions. [2022-10-16 10:09:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2022-10-16 10:09:52,098 INFO L78 Accepts]: Start accepts. Automaton has has 259 states, 259 states have (on average 2.250965250965251) internal successors, (583), 259 states have internal predecessors, (583), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 314 [2022-10-16 10:09:52,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:52,103 INFO L225 Difference]: With dead ends: 805 [2022-10-16 10:09:52,103 INFO L226 Difference]: Without dead ends: 676 [2022-10-16 10:09:52,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31943 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=40843, Invalid=107767, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 10:09:52,118 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 1076 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:52,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1210 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 10:09:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-10-16 10:09:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 642. [2022-10-16 10:09:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 624 states have (on average 1.0576923076923077) internal successors, (660), 633 states have internal predecessors, (660), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 10:09:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 674 transitions. [2022-10-16 10:09:52,153 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 674 transitions. Word has length 314 [2022-10-16 10:09:52,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:52,153 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 674 transitions. [2022-10-16 10:09:52,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 259 states, 259 states have (on average 2.250965250965251) internal successors, (583), 259 states have internal predecessors, (583), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 674 transitions. [2022-10-16 10:09:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2022-10-16 10:09:52,167 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:52,168 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:52,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 10:09:52,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 10:09:52,383 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 10:09:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash 330707797, now seen corresponding path program 1 times [2022-10-16 10:09:52,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:52,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485067724] [2022-10-16 10:09:52,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:52,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2022-10-16 10:09:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-10-16 10:09:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-10-16 10:09:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 32190 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 32168 trivial. 0 not checked. [2022-10-16 10:09:53,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:53,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485067724] [2022-10-16 10:09:53,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485067724] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:53,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226075635] [2022-10-16 10:09:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:53,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:53,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:53,461 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:09:53,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:09:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:53,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:09:53,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 32190 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 10:10:15,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 32190 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 10:11:15,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226075635] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:15,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:15,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 257, 257] total 517 [2022-10-16 10:11:15,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763692541] [2022-10-16 10:11:15,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:15,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 517 states [2022-10-16 10:11:15,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 517 interpolants. [2022-10-16 10:11:15,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65812, Invalid=200960, Unknown=0, NotChecked=0, Total=266772 [2022-10-16 10:11:15,361 INFO L87 Difference]: Start difference. First operand 642 states and 674 transitions. Second operand has 517 states, 517 states have (on average 2.0754352030947776) internal successors, (1073), 517 states have internal predecessors, (1073), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)