/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-fpi/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 19:59:29,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 19:59:29,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 19:59:29,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 19:59:29,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 19:59:29,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 19:59:29,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 19:59:29,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 19:59:29,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 19:59:29,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 19:59:29,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 19:59:29,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 19:59:29,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 19:59:29,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 19:59:29,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 19:59:29,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 19:59:29,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 19:59:29,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 19:59:29,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 19:59:29,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 19:59:29,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 19:59:29,254 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 19:59:29,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 19:59:29,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 19:59:29,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 19:59:29,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 19:59:29,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 19:59:29,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 19:59:29,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 19:59:29,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 19:59:29,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 19:59:29,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 19:59:29,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 19:59:29,258 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 19:59:29,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 19:59:29,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 19:59:29,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 19:59:29,469 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 19:59:29,470 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 19:59:29,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res2of.c [2023-04-01 19:59:30,476 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 19:59:30,650 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 19:59:30,651 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2of.c [2023-04-01 19:59:30,654 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1257c35/1e689d8f60464588af2ce6a1485dd9b4/FLAG849cc4b8b [2023-04-01 19:59:30,664 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1257c35/1e689d8f60464588af2ce6a1485dd9b4 [2023-04-01 19:59:30,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 19:59:30,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 19:59:30,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 19:59:30,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 19:59:30,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 19:59:30,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2abae7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30, skipping insertion in model container [2023-04-01 19:59:30,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 19:59:30,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 19:59:30,776 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2of.c[589,602] [2023-04-01 19:59:30,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 19:59:30,796 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 19:59:30,804 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2of.c[589,602] [2023-04-01 19:59:30,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 19:59:30,820 INFO L208 MainTranslator]: Completed translation [2023-04-01 19:59:30,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30 WrapperNode [2023-04-01 19:59:30,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 19:59:30,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 19:59:30,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 19:59:30,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 19:59:30,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 19:59:30,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 19:59:30,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 19:59:30,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 19:59:30,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (1/1) ... [2023-04-01 19:59:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 19:59:30,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:59:30,884 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) [2023-04-01 19:59:30,886 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 [2023-04-01 19:59:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 19:59:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 19:59:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 19:59:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 19:59:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 19:59:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 19:59:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 19:59:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 19:59:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 19:59:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 19:59:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 19:59:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 19:59:30,985 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 19:59:30,987 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 19:59:31,201 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 19:59:31,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 19:59:31,206 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-04-01 19:59:31,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:59:31 BoogieIcfgContainer [2023-04-01 19:59:31,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 19:59:31,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 19:59:31,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 19:59:31,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 19:59:31,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:59:30" (1/3) ... [2023-04-01 19:59:31,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e48b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:59:31, skipping insertion in model container [2023-04-01 19:59:31,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:59:30" (2/3) ... [2023-04-01 19:59:31,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e48b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:59:31, skipping insertion in model container [2023-04-01 19:59:31,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:59:31" (3/3) ... [2023-04-01 19:59:31,222 INFO L112 eAbstractionObserver]: Analyzing ICFG res2of.c [2023-04-01 19:59:31,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 19:59:31,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 19:59:31,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 19:59:31,273 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=PETRI_NET, 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;@4a6d7e56, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 19:59:31,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 19:59:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 19:59:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-01 19:59:31,287 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:59:31,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:59:31,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:59:31,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:59:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1259377407, now seen corresponding path program 1 times [2023-04-01 19:59:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:59:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074175883] [2023-04-01 19:59:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:59:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:59:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:59:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:59:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 19:59:31,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:59:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074175883] [2023-04-01 19:59:31,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074175883] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 19:59:31,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 19:59:31,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 19:59:31,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104590704] [2023-04-01 19:59:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 19:59:31,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 19:59:31,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:59:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 19:59:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 19:59:31,502 INFO L87 Difference]: Start difference. First operand has 43 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 19:59:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:59:31,594 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2023-04-01 19:59:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 19:59:31,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-04-01 19:59:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:59:31,600 INFO L225 Difference]: With dead ends: 76 [2023-04-01 19:59:31,601 INFO L226 Difference]: Without dead ends: 36 [2023-04-01 19:59:31,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 19:59:31,605 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 19:59:31,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 19:59:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-04-01 19:59:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-04-01 19:59:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 19:59:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-04-01 19:59:31,629 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 29 [2023-04-01 19:59:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:59:31,630 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-04-01 19:59:31,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 19:59:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-04-01 19:59:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-01 19:59:31,631 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:59:31,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:59:31,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 19:59:31,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:59:31,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:59:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1596973367, now seen corresponding path program 1 times [2023-04-01 19:59:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:59:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245066740] [2023-04-01 19:59:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:59:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:59:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:59:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:59:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:59:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 19:59:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:59:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245066740] [2023-04-01 19:59:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245066740] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 19:59:31,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 19:59:31,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 19:59:31,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852826081] [2023-04-01 19:59:31,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 19:59:31,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 19:59:31,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:59:31,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 19:59:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 19:59:31,804 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 19:59:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:59:31,933 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2023-04-01 19:59:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 19:59:31,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-04-01 19:59:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:59:31,936 INFO L225 Difference]: With dead ends: 69 [2023-04-01 19:59:31,936 INFO L226 Difference]: Without dead ends: 48 [2023-04-01 19:59:31,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-01 19:59:31,940 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 19:59:31,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 25 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 19:59:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-04-01 19:59:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-04-01 19:59:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 19:59:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2023-04-01 19:59:31,946 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 29 [2023-04-01 19:59:31,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:59:31,946 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2023-04-01 19:59:31,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 19:59:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2023-04-01 19:59:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-01 19:59:31,947 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:59:31,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:59:31,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 19:59:31,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:59:31,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:59:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash 378806037, now seen corresponding path program 1 times [2023-04-01 19:59:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:59:31,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761439408] [2023-04-01 19:59:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:59:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:59:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 19:59:32,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 19:59:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 19:59:32,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-01 19:59:32,121 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 19:59:32,122 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 19:59:32,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 19:59:32,126 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-01 19:59:32,129 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 19:59:32,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 07:59:32 BoogieIcfgContainer [2023-04-01 19:59:32,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 19:59:32,161 INFO L158 Benchmark]: Toolchain (without parser) took 1494.91ms. Allocated memory is still 226.5MB. Free memory was 192.8MB in the beginning and 178.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. [2023-04-01 19:59:32,162 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 19:59:32,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.59ms. Allocated memory is still 226.5MB. Free memory was 192.5MB in the beginning and 181.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 19:59:32,162 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 226.5MB. Free memory was 181.5MB in the beginning and 179.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 19:59:32,162 INFO L158 Benchmark]: RCFGBuilder took 351.27ms. Allocated memory is still 226.5MB. Free memory was 179.9MB in the beginning and 165.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-04-01 19:59:32,163 INFO L158 Benchmark]: TraceAbstraction took 952.62ms. Allocated memory is still 226.5MB. Free memory was 164.2MB in the beginning and 178.7MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 19:59:32,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 151.59ms. Allocated memory is still 226.5MB. Free memory was 192.5MB in the beginning and 181.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.63ms. Allocated memory is still 226.5MB. Free memory was 181.5MB in the beginning and 179.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 351.27ms. Allocated memory is still 226.5MB. Free memory was 179.9MB in the beginning and 165.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 952.62ms. Allocated memory is still 226.5MB. Free memory was 164.2MB in the beginning and 178.7MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0, \old(N)=51] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [N=1, \old(N)=0] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0, \old(cond)=1] [L13] COND FALSE !(!cond) VAL [N=1, \old(N)=0, \old(cond)=1, cond=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 VAL [N=1, \old(N)=0, a={-1:0}, b={-2:0}, c={5:0}, i=0, sum={7:0}] [L34] COND TRUE i