/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/loops/sum_array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:39:17,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:39:17,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:39:17,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:39:17,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:39:17,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:39:17,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:39:17,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:39:17,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:39:17,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:39:17,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:39:17,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:39:17,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:39:17,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:39:17,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:39:17,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:39:17,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:39:17,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:39:17,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:39:17,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:39:17,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:39:17,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:39:17,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:39:17,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:39:17,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:39:17,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:39:17,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:39:17,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:39:17,726 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 14:39:17,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:39:17,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:39:17,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:39:17,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:39:17,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:39:17,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:39:17,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:39:17,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:39:17,780 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:39:17,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:39:17,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:39:17,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:39:17,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:39:17,783 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:39:17,783 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:39:17,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:39:17,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:39:17,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:39:17,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:39:17,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:39:17,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:39:17,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:39:17,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:39:17,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:39:17,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:39:17,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:39:17,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:39:17,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:39:17,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:39:18,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:39:18,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:39:18,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:39:18,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:39:18,213 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:39:18,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-1.c [2022-10-16 14:39:18,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6357e2541/06a3bda7ed42452c9764647822f08b0d/FLAG13d566934 [2022-10-16 14:39:18,920 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:39:18,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c [2022-10-16 14:39:18,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6357e2541/06a3bda7ed42452c9764647822f08b0d/FLAG13d566934 [2022-10-16 14:39:19,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6357e2541/06a3bda7ed42452c9764647822f08b0d [2022-10-16 14:39:19,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:39:19,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:39:19,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:39:19,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:39:19,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:39:19,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc828a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19, skipping insertion in model container [2022-10-16 14:39:19,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:39:19,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:39:19,491 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/loops/sum_array-1.c[363,376] [2022-10-16 14:39:19,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:39:19,526 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:39:19,541 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/loops/sum_array-1.c[363,376] [2022-10-16 14:39:19,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:39:19,568 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:39:19,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19 WrapperNode [2022-10-16 14:39:19,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:39:19,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:39:19,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:39:19,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:39:19,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,622 INFO L138 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-10-16 14:39:19,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:39:19,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:39:19,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:39:19,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:39:19,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:39:19,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:39:19,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:39:19,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:39:19,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (1/1) ... [2022-10-16 14:39:19,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:39:19,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:19,694 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 14:39:19,717 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 14:39:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:39:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:39:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:39:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:39:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:39:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:39:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:39:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:39:19,858 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:39:19,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:39:20,120 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:39:20,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:39:20,144 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 14:39:20,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:20 BoogieIcfgContainer [2022-10-16 14:39:20,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:39:20,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:39:20,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:39:20,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:39:20,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:39:19" (1/3) ... [2022-10-16 14:39:20,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f835e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:20, skipping insertion in model container [2022-10-16 14:39:20,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:19" (2/3) ... [2022-10-16 14:39:20,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f835e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:20, skipping insertion in model container [2022-10-16 14:39:20,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:20" (3/3) ... [2022-10-16 14:39:20,174 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2022-10-16 14:39:20,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:39:20,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:39:20,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:39:20,299 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;@6e113503, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:39:20,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:39:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 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 14:39:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:39:20,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:20,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:20,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:39:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash 212047892, now seen corresponding path program 1 times [2022-10-16 14:39:20,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:20,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798830767] [2022-10-16 14:39:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:20,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:20,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798830767] [2022-10-16 14:39:20,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798830767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:20,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:20,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:39:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648885407] [2022-10-16 14:39:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:20,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:20,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:20,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:20,844 INFO L87 Difference]: Start difference. First operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14:39:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:21,013 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2022-10-16 14:39:21,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-10-16 14:39:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:21,025 INFO L225 Difference]: With dead ends: 81 [2022-10-16 14:39:21,026 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:39:21,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:39:21,033 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:21,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 49 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:39:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 26. [2022-10-16 14:39:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 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 14:39:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-10-16 14:39:21,078 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 8 [2022-10-16 14:39:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:21,079 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-10-16 14:39:21,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14:39:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-10-16 14:39:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:39:21,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:21,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:21,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:39:21,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:39:21,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1312443864, now seen corresponding path program 1 times [2022-10-16 14:39:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:21,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173146864] [2022-10-16 14:39:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 14:39:21,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 14:39:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 14:39:21,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 14:39:21,278 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 14:39:21,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 14:39:21,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 14:39:21,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 14:39:21,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 14:39:21,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:39:21,294 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-16 14:39:21,299 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:39:21,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:39:21 BoogieIcfgContainer [2022-10-16 14:39:21,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:39:21,355 INFO L158 Benchmark]: Toolchain (without parser) took 2075.16ms. Allocated memory is still 154.1MB. Free memory was 128.3MB in the beginning and 92.9MB in the end (delta: 35.3MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,357 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 154.1MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:39:21,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.35ms. Allocated memory is still 154.1MB. Free memory was 128.1MB in the beginning and 118.3MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.05ms. Allocated memory is still 154.1MB. Free memory was 118.1MB in the beginning and 116.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,366 INFO L158 Benchmark]: Boogie Preprocessor took 32.85ms. Allocated memory is still 154.1MB. Free memory was 116.4MB in the beginning and 114.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,367 INFO L158 Benchmark]: RCFGBuilder took 490.09ms. Allocated memory is still 154.1MB. Free memory was 114.9MB in the beginning and 102.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,368 INFO L158 Benchmark]: TraceAbstraction took 1196.59ms. Allocated memory is still 154.1MB. Free memory was 101.5MB in the beginning and 92.9MB in the end (delta: 8.6MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-10-16 14:39:21,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 154.1MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 285.35ms. Allocated memory is still 154.1MB. Free memory was 128.1MB in the beginning and 118.3MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.05ms. Allocated memory is still 154.1MB. Free memory was 118.1MB in the beginning and 116.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.85ms. Allocated memory is still 154.1MB. Free memory was 116.4MB in the beginning and 114.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 490.09ms. Allocated memory is still 154.1MB. Free memory was 114.9MB in the beginning and 102.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1196.59ms. Allocated memory is still 154.1MB. Free memory was 101.5MB in the beginning and 92.9MB in the end (delta: 8.6MB). Peak memory consumption was 9.9MB. 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 - CounterExampleResult [Line: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L16] unsigned int M = __VERIFIER_nondet_uint(); [L17] int A[M], B[M], C[M]; [L18] unsigned int i; [L20] i=0 VAL [A={6:0}, B={5:0}, C={7:0}, i=0, M=1] [L20] COND TRUE i