/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/filter2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:54:21,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:54:21,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:54:21,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:54:21,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:54:21,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:54:21,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:54:21,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:54:21,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:54:21,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:54:21,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:54:21,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:54:21,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:54:21,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:54:21,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:54:21,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:54:21,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:54:21,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:54:21,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:54:21,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:54:21,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:54:21,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:54:21,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:54:21,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:54:21,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:54:22,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:54:22,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:54:22,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:54:22,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:54:22,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:54:22,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:54:22,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:54:22,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:54:22,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:54:22,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:54:22,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:54:22,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:54:22,041 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:54:22,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:54:22,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:54:22,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:54:22,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:54:22,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:54:22,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:54:22,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:54:22,043 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:54:22,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:54:22,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:54:22,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:54:22,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:54:22,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:54:22,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:54:22,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:54:22,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:54:22,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:54:22,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:54:22,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:54:22,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:54:22,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:54:22,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:54:22,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:54:22,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:54:22,469 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:54:22,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2.c [2022-10-16 11:54:22,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f7947fe/c5d4cf9248944188b36a73ba81a2bd08/FLAGdd49f378d [2022-10-16 11:54:23,223 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:54:23,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2.c [2022-10-16 11:54:23,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f7947fe/c5d4cf9248944188b36a73ba81a2bd08/FLAGdd49f378d [2022-10-16 11:54:23,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f7947fe/c5d4cf9248944188b36a73ba81a2bd08 [2022-10-16 11:54:23,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:54:23,583 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:54:23,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:54:23,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:54:23,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:54:23,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef6ae41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23, skipping insertion in model container [2022-10-16 11:54:23,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:54:23,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:54:23,780 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/filter2.c[652,665] [2022-10-16 11:54:23,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:54:23,808 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:54:23,821 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/filter2.c[652,665] [2022-10-16 11:54:23,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:54:23,849 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:54:23,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23 WrapperNode [2022-10-16 11:54:23,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:54:23,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:54:23,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:54:23,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:54:23,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,895 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2022-10-16 11:54:23,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:54:23,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:54:23,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:54:23,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:54:23,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:54:23,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:54:23,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:54:23,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:54:23,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (1/1) ... [2022-10-16 11:54:23,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:54:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:54:23,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:54:23,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:54:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:54:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 11:54:24,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 11:54:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:54:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:54:24,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:54:24,104 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:54:24,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:54:24,257 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:54:24,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:54:24,265 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 11:54:24,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:54:24 BoogieIcfgContainer [2022-10-16 11:54:24,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:54:24,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:54:24,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:54:24,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:54:24,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:54:23" (1/3) ... [2022-10-16 11:54:24,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d896b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:54:24, skipping insertion in model container [2022-10-16 11:54:24,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:54:23" (2/3) ... [2022-10-16 11:54:24,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d896b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:54:24, skipping insertion in model container [2022-10-16 11:54:24,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:54:24" (3/3) ... [2022-10-16 11:54:24,279 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2022-10-16 11:54:24,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:54:24,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 11:54:24,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:54:24,384 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;@534e3786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:54:24,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 11:54:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 11:54:24,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:54:24,406 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:24,407 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:24,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 11:54:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash 456002182, now seen corresponding path program 1 times [2022-10-16 11:54:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:24,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8050623] [2022-10-16 11:54:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:24,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:54:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:24,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 11:54:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 11:54:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:54:24,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:24,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8050623] [2022-10-16 11:54:24,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8050623] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:24,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:24,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:54:24,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477159115] [2022-10-16 11:54:24,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:24,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:54:24,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:54:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:54:24,754 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:54:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:24,774 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2022-10-16 11:54:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:54:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-10-16 11:54:24,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:24,787 INFO L225 Difference]: With dead ends: 45 [2022-10-16 11:54:24,787 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 11:54:24,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:54:24,797 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:54:24,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:54:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 11:54:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-16 11:54:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 11:54:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-10-16 11:54:24,852 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 24 [2022-10-16 11:54:24,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:24,853 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-10-16 11:54:24,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:54:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-10-16 11:54:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:54:24,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:24,857 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:24,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:54:24,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 11:54:24,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:24,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1844110724, now seen corresponding path program 1 times [2022-10-16 11:54:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:24,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371314185] [2022-10-16 11:54:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:54:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 11:54:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 11:54:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:54:25,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:25,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371314185] [2022-10-16 11:54:25,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371314185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:25,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:25,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:54:25,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79977770] [2022-10-16 11:54:25,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:25,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:54:25,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:54:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:54:25,216 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:54:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:25,261 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-10-16 11:54:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:54:25,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-10-16 11:54:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:25,264 INFO L225 Difference]: With dead ends: 29 [2022-10-16 11:54:25,264 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 11:54:25,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:54:25,267 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:54:25,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:54:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 11:54:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-16 11:54:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 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 11:54:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-10-16 11:54:25,282 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 24 [2022-10-16 11:54:25,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:25,284 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-10-16 11:54:25,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:54:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-10-16 11:54:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:54:25,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:25,287 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:25,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:54:25,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 11:54:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1923641576, now seen corresponding path program 1 times [2022-10-16 11:54:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:25,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273097898] [2022-10-16 11:54:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:25,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:54:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 11:54:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 11:54:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 11:54:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 11:54:25,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273097898] [2022-10-16 11:54:25,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273097898] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:25,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:25,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:54:25,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789664120] [2022-10-16 11:54:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:25,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:54:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:54:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:54:25,480 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 11:54:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:25,511 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-10-16 11:54:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:54:25,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-10-16 11:54:25,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:25,514 INFO L225 Difference]: With dead ends: 27 [2022-10-16 11:54:25,515 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 11:54:25,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:54:25,521 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 38 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 11:54:25,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 38 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:54:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 11:54:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-16 11:54:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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 11:54:25,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-10-16 11:54:25,548 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 36 [2022-10-16 11:54:25,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:25,553 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-10-16 11:54:25,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 11:54:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-10-16 11:54:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:54:25,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:25,556 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:25,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:54:25,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 11:54:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:25,560 INFO L85 PathProgramCache]: Analyzing trace with hash -496653227, now seen corresponding path program 1 times [2022-10-16 11:54:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:25,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813157053] [2022-10-16 11:54:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:54:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 11:54:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 11:54:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 11:54:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 11:54:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:25,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813157053] [2022-10-16 11:54:25,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813157053] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:54:25,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797797805] [2022-10-16 11:54:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:25,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:54:25,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:54:25,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:54:25,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:54:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:25,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:54:25,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:54:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 11:54:25,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:54:25,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797797805] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:25,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:54:25,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 11:54:25,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081825666] [2022-10-16 11:54:25,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:25,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:54:25,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:25,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:54:25,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:54:25,989 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 11:54:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:26,015 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-10-16 11:54:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:54:26,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-10-16 11:54:26,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:26,018 INFO L225 Difference]: With dead ends: 26 [2022-10-16 11:54:26,018 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 11:54:26,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:54:26,021 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:54:26,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 38 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:54:26,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 11:54:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 11:54:26,023 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) [2022-10-16 11:54:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 11:54:26,024 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-10-16 11:54:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:26,024 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 11:54:26,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 11:54:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 11:54:26,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 11:54:26,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-16 11:54:26,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-16 11:54:26,069 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 11:54:26,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:54:26,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 11:54:26,319 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-10-16 11:54:26,319 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 11:54:26,319 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 45) no Hoare annotation was computed. [2022-10-16 11:54:26,319 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2022-10-16 11:54:26,323 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2022-10-16 11:54:26,323 INFO L895 garLoopResultBuilder]: At program point L33-5(lines 33 45) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-10-16 11:54:26,324 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2022-10-16 11:54:26,324 INFO L899 garLoopResultBuilder]: For program point L33-6(lines 33 45) no Hoare annotation was computed. [2022-10-16 11:54:26,324 INFO L902 garLoopResultBuilder]: At program point L27-1(line 27) the Hoare annotation is: true [2022-10-16 11:54:26,324 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-10-16 11:54:26,324 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-10-16 11:54:26,327 INFO L895 garLoopResultBuilder]: At program point L17-3(line 17) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) [2022-10-16 11:54:26,327 INFO L902 garLoopResultBuilder]: At program point L46(lines 20 47) the Hoare annotation is: true [2022-10-16 11:54:26,328 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) [2022-10-16 11:54:26,328 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-10-16 11:54:26,328 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 11:54:26,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-10-16 11:54:26,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 11:54:26,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 11:54:26,329 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-10-16 11:54:26,330 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-10-16 11:54:26,331 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 14 16) the Hoare annotation is: true [2022-10-16 11:54:26,331 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2022-10-16 11:54:26,331 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2022-10-16 11:54:26,339 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-10-16 11:54:26,342 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 11:54:26,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:54:26 BoogieIcfgContainer [2022-10-16 11:54:26,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 11:54:26,381 INFO L158 Benchmark]: Toolchain (without parser) took 2802.31ms. Allocated memory is still 159.4MB. Free memory was 134.2MB in the beginning and 71.0MB in the end (delta: 63.2MB). Peak memory consumption was 63.3MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,382 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 11:54:26,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.45ms. Allocated memory is still 159.4MB. Free memory was 134.1MB in the beginning and 124.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.64ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 122.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,386 INFO L158 Benchmark]: Boogie Preprocessor took 27.33ms. Allocated memory is still 159.4MB. Free memory was 122.5MB in the beginning and 121.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,389 INFO L158 Benchmark]: RCFGBuilder took 344.09ms. Allocated memory is still 159.4MB. Free memory was 121.3MB in the beginning and 111.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,392 INFO L158 Benchmark]: TraceAbstraction took 2108.88ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 71.0MB in the end (delta: 39.6MB). Peak memory consumption was 39.2MB. Max. memory is 8.0GB. [2022-10-16 11:54:26,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.45ms. Allocated memory is still 159.4MB. Free memory was 134.1MB in the beginning and 124.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.64ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 122.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.33ms. Allocated memory is still 159.4MB. Free memory was 122.5MB in the beginning and 121.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 344.09ms. Allocated memory is still 159.4MB. Free memory was 121.3MB in the beginning and 111.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2108.88ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 71.0MB in the end (delta: 39.6MB). Peak memory consumption was 39.2MB. 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: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 151 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 74 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 20 NumberOfFragments, 27 HoareAnnotationTreeSize, 12 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 1 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 111/119 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: 33]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 1000000 RESULT: Ultimate proved your program to be correct! [2022-10-16 11:54:26,464 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...