/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/float-benchs/filter1.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:45:51,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:45:51,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:45:51,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:45:51,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:45:51,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:45:51,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:45:51,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:45:51,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:45:51,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:45:51,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:45:51,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:45:51,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:45:51,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:45:51,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:45:51,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:45:51,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:45:51,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:45:51,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:45:51,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:45:51,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:45:51,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:45:51,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:45:51,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:45:51,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:45:51,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:45:51,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:45:51,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:45:51,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:45:51,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:45:51,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:45:51,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:45:51,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:45:51,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:45:51,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:45:51,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:45:51,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:45:51,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:45:51,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:45:51,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:45:51,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:45:51,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:45:51,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:45:51,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:45:51,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:45:51,354 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:45:51,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:45:51,356 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:45:51,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:45:51,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:45:51,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:45:51,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:45:51,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:45:51,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:45:51,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:45:51,358 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:45:51,358 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:45:51,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:45:51,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:45:51,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:45:51,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:45:51,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:45:51,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:45:51,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:45:51,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:45:51,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:45:51,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:45:51,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:45:51,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:45:51,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:45:51,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:45:51,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:45:51,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:45:51,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:45:51,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:45:51,847 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:45:51,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-10-15 20:45:51,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd8962be/a6a6a95a903a427a9028e55c02fd75dc/FLAG067adc3f4 [2022-10-15 20:45:52,651 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:45:52,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-10-15 20:45:52,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd8962be/a6a6a95a903a427a9028e55c02fd75dc/FLAG067adc3f4 [2022-10-15 20:45:52,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd8962be/a6a6a95a903a427a9028e55c02fd75dc [2022-10-15 20:45:52,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:45:53,001 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:45:53,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:45:53,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:45:53,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:45:53,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:45:52" (1/1) ... [2022-10-15 20:45:53,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f515e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53, skipping insertion in model container [2022-10-15 20:45:53,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:45:52" (1/1) ... [2022-10-15 20:45:53,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:45:53,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:45:53,246 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/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-10-15 20:45:53,256 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/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-10-15 20:45:53,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:45:53,275 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:45:53,297 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/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-10-15 20:45:53,304 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/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-10-15 20:45:53,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:45:53,337 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:45:53,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53 WrapperNode [2022-10-15 20:45:53,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:45:53,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:45:53,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:45:53,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:45:53,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,386 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 124 [2022-10-15 20:45:53,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:45:53,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:45:53,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:45:53,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:45:53,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:45:53,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:45:53,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:45:53,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:45:53,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (1/1) ... [2022-10-15 20:45:53,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:45:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:45:53,472 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) [2022-10-15 20:45:53,483 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 [2022-10-15 20:45:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:45:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:45:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:45:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:45:53,617 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:45:53,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:45:53,864 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:45:53,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:45:53,887 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 20:45:53,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:45:53 BoogieIcfgContainer [2022-10-15 20:45:53,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:45:53,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:45:53,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:45:53,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:45:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:45:52" (1/3) ... [2022-10-15 20:45:53,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be0fa75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:45:53, skipping insertion in model container [2022-10-15 20:45:53,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:45:53" (2/3) ... [2022-10-15 20:45:53,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be0fa75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:45:53, skipping insertion in model container [2022-10-15 20:45:53,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:45:53" (3/3) ... [2022-10-15 20:45:53,924 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2022-10-15 20:45:53,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:45:53,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 20:45:54,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:45:54,082 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;@471437aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:45:54,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 20:45:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:54,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:45:54,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:45:54,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:45:54,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 20:45:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:45:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1721285932, now seen corresponding path program 1 times [2022-10-15 20:45:54,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:45:54,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088467057] [2022-10-15 20:45:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:45:54,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:45:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:45:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:45:54,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:45:54,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088467057] [2022-10-15 20:45:54,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088467057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:45:54,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:45:54,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:45:54,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460752225] [2022-10-15 20:45:54,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:45:54,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:45:54,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:45:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:45:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:45:54,773 INFO L87 Difference]: Start difference. First operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2022-10-15 20:45:54,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:45:54,877 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2022-10-15 20:45:54,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:45:54,880 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 [2022-10-15 20:45:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:45:54,892 INFO L225 Difference]: With dead ends: 44 [2022-10-15 20:45:54,892 INFO L226 Difference]: Without dead ends: 33 [2022-10-15 20:45:54,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:45:54,902 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:45:54,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 63 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:45:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-15 20:45:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-15 20:45:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-10-15 20:45:54,954 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 14 [2022-10-15 20:45:54,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:45:54,955 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-10-15 20:45:54,955 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) [2022-10-15 20:45:54,955 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-10-15 20:45:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 20:45:54,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:45:54,959 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:45:54,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:45:54,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 20:45:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:45:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash -170491608, now seen corresponding path program 1 times [2022-10-15 20:45:54,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:45:54,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549626220] [2022-10-15 20:45:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:45:54,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:45:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:45:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:45:55,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:45:55,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549626220] [2022-10-15 20:45:55,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549626220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:45:55,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:45:55,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:45:55,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906057161] [2022-10-15 20:45:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:45:55,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:45:55,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:45:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:45:55,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:45:55,098 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:45:55,123 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-10-15 20:45:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:45:55,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-15 20:45:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:45:55,126 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:45:55,126 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 20:45:55,129 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 [2022-10-15 20:45:55,131 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:45:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:45:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 20:45:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-15 20:45:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-10-15 20:45:55,142 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 27 [2022-10-15 20:45:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:45:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-10-15 20:45:55,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-10-15 20:45:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 20:45:55,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:45:55,144 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:45:55,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:45:55,145 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 20:45:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:45:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1025378333, now seen corresponding path program 1 times [2022-10-15 20:45:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:45:55,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503171291] [2022-10-15 20:45:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:45:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:45:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:45:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:45:55,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:45:55,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503171291] [2022-10-15 20:45:55,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503171291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:45:55,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:45:55,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:45:55,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100872732] [2022-10-15 20:45:55,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:45:55,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:45:55,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:45:55,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:45:55,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:45:55,243 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:45:55,264 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-10-15 20:45:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:45:55,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-15 20:45:55,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:45:55,266 INFO L225 Difference]: With dead ends: 32 [2022-10-15 20:45:55,266 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 20:45:55,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:45:55,269 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:45:55,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 31 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:45:55,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 20:45:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-15 20:45:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-10-15 20:45:55,280 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 27 [2022-10-15 20:45:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:45:55,281 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-10-15 20:45:55,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-10-15 20:45:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 20:45:55,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:45:55,283 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-10-15 20:45:55,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 20:45:55,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 20:45:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:45:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1721957183, now seen corresponding path program 1 times [2022-10-15 20:45:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:45:55,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721753017] [2022-10-15 20:45:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:45:55,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:45:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:45:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:45:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:45:55,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721753017] [2022-10-15 20:45:55,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721753017] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:45:55,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564835236] [2022-10-15 20:45:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:45:55,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:45:55,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:45:55,502 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) [2022-10-15 20:45:55,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:45:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:45:55,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:45:55,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:45:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:45:55,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:45:55,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564835236] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:45:55,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:45:55,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 20:45:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188567563] [2022-10-15 20:45:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:45:55,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:45:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:45:55,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:45:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:45:55,822 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:45:55,859 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-10-15 20:45:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:45:55,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 [2022-10-15 20:45:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:45:55,861 INFO L225 Difference]: With dead ends: 31 [2022-10-15 20:45:55,861 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:45:55,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:45:55,872 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:45:55,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:45:55,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:45:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:45:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:45:55,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-10-15 20:45:55,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:45:55,879 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:45:55,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:45:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:45:55,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:45:55,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-15 20:45:55,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-15 20:45:55,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 20:45:56,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:45:56,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:45:56,165 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 121) no Hoare annotation was computed. [2022-10-15 20:45:56,166 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 156) no Hoare annotation was computed. [2022-10-15 20:45:56,166 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 132) no Hoare annotation was computed. [2022-10-15 20:45:56,166 INFO L895 garLoopResultBuilder]: At program point L143(lines 77 144) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) [2022-10-15 20:45:56,167 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 144) no Hoare annotation was computed. [2022-10-15 20:45:56,167 INFO L895 garLoopResultBuilder]: At program point L168(lines 45 169) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-10-15 20:45:56,167 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 113) no Hoare annotation was computed. [2022-10-15 20:45:56,167 INFO L895 garLoopResultBuilder]: At program point L131(lines 85 132) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-10-15 20:45:56,167 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 185) no Hoare annotation was computed. [2022-10-15 20:45:56,168 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 20:45:56,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-10-15 20:45:56,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 20:45:56,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 20:45:56,169 INFO L902 garLoopResultBuilder]: At program point L148(lines 75 149) the Hoare annotation is: true [2022-10-15 20:45:56,169 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 169) no Hoare annotation was computed. [2022-10-15 20:45:56,169 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-10-15 20:45:56,169 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-10-15 20:45:56,169 INFO L902 garLoopResultBuilder]: At program point L194(lines 17 196) the Hoare annotation is: true [2022-10-15 20:45:56,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-10-15 20:45:56,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 20:45:56,170 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 126) no Hoare annotation was computed. [2022-10-15 20:45:56,170 INFO L895 garLoopResultBuilder]: At program point L120(lines 93 121) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-10-15 20:45:56,171 INFO L895 garLoopResultBuilder]: At program point L112(lines 62 156) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) [2022-10-15 20:45:56,171 INFO L895 garLoopResultBuilder]: At program point L174(lines 39 175) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-10-15 20:45:56,171 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 149) no Hoare annotation was computed. [2022-10-15 20:45:56,171 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 155) no Hoare annotation was computed. [2022-10-15 20:45:56,171 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 190) no Hoare annotation was computed. [2022-10-15 20:45:56,172 INFO L895 garLoopResultBuilder]: At program point L125(lines 91 126) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-10-15 20:45:56,172 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 195) no Hoare annotation was computed. [2022-10-15 20:45:56,172 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 164) no Hoare annotation was computed. [2022-10-15 20:45:56,172 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 175) no Hoare annotation was computed. [2022-10-15 20:45:56,172 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 180) no Hoare annotation was computed. [2022-10-15 20:45:56,173 INFO L895 garLoopResultBuilder]: At program point L163(lines 47 164) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-10-15 20:45:56,177 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-10-15 20:45:56,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 20:45:56,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:45:56 BoogieIcfgContainer [2022-10-15 20:45:56,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 20:45:56,216 INFO L158 Benchmark]: Toolchain (without parser) took 3220.70ms. Allocated memory is still 155.2MB. Free memory was 130.0MB in the beginning and 117.7MB in the end (delta: 12.3MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-10-15 20:45:56,217 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:45:56,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.73ms. Allocated memory is still 155.2MB. Free memory was 130.0MB in the beginning and 118.9MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-15 20:45:56,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.83ms. Allocated memory is still 155.2MB. Free memory was 118.9MB in the beginning and 117.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 20:45:56,222 INFO L158 Benchmark]: Boogie Preprocessor took 32.17ms. Allocated memory is still 155.2MB. Free memory was 117.1MB in the beginning and 116.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 20:45:56,222 INFO L158 Benchmark]: RCFGBuilder took 475.00ms. Allocated memory is still 155.2MB. Free memory was 116.0MB in the beginning and 103.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 20:45:56,223 INFO L158 Benchmark]: TraceAbstraction took 2311.38ms. Allocated memory is still 155.2MB. Free memory was 102.7MB in the beginning and 117.7MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:45:56,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.73ms. Allocated memory is still 155.2MB. Free memory was 130.0MB in the beginning and 118.9MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.83ms. Allocated memory is still 155.2MB. Free memory was 118.9MB in the beginning and 117.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.17ms. Allocated memory is still 155.2MB. Free memory was 117.1MB in the beginning and 116.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 475.00ms. Allocated memory is still 155.2MB. Free memory was 116.0MB in the beginning and 103.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2311.38ms. Allocated memory is still 155.2MB. Free memory was 102.7MB in the beginning and 117.7MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 140 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 20 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 7/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: main__i == 0 || (main__i <= 1000000 && 1 <= main__i) - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: (main__i <= 1000000 && 1 <= main__i) || main____CPAchecker_TMP_0 == 0 RESULT: Ultimate proved your program to be correct! [2022-10-15 20:45:56,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...