/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:31:05,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:31:05,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:31:05,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 21:31:06,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:31:06,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:31:06,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:31:06,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:31:06,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:31:06,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:31:06,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:31:06,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:31:06,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:31:06,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:31:06,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:31:06,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 21:31:06,062 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:31:06,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:31:06,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:31:06,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:31:06,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:31:06,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:31:06,064 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:31:06,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:31:06,064 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:31:06,065 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:31:06,065 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:31:06,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:31:06,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:31:06,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:31:06,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:31:06,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:31:06,069 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:31:06,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:31:06,069 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:31:06,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:31:06,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:31:06,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:31:06,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:31:06,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:31:06,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:31:06,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:31:06,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:31:06,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:31:06,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:31:06,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:31:06,355 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:31:06,356 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:31:06,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test30-1.c [2023-04-02 21:31:07,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:31:07,734 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:31:07,734 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-1.c [2023-04-02 21:31:07,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26ece288/04241de71d2149679e3ea8954f5ece83/FLAGa8e36b775 [2023-04-02 21:31:07,752 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26ece288/04241de71d2149679e3ea8954f5ece83 [2023-04-02 21:31:07,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:31:07,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:31:07,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:31:07,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:31:07,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:31:07,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:07,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599b13a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07, skipping insertion in model container [2023-04-02 21:31:07,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:07,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:31:07,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:31:07,933 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/ldv-regression/test30-1.c[560,573] [2023-04-02 21:31:07,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:31:07,948 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:31:07,959 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/ldv-regression/test30-1.c[560,573] [2023-04-02 21:31:07,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:31:07,970 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:31:07,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07 WrapperNode [2023-04-02 21:31:07,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:31:07,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:31:07,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:31:07,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:31:07,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:07,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:07,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:07,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:31:08,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:31:08,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:31:08,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:31:08,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (1/1) ... [2023-04-02 21:31:08,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:31:08,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:31:08,046 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) [2023-04-02 21:31:08,049 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 [2023-04-02 21:31:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:31:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:31:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:31:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2023-04-02 21:31:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2023-04-02 21:31:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:31:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:31:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:31:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:31:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:31:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 21:31:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:31:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 21:31:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:31:08,179 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:31:08,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:31:08,377 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:31:08,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:31:08,422 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 21:31:08,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:31:08 BoogieIcfgContainer [2023-04-02 21:31:08,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:31:08,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:31:08,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:31:08,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:31:08,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:31:07" (1/3) ... [2023-04-02 21:31:08,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@805a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:31:08, skipping insertion in model container [2023-04-02 21:31:08,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:31:07" (2/3) ... [2023-04-02 21:31:08,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@805a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:31:08, skipping insertion in model container [2023-04-02 21:31:08,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:31:08" (3/3) ... [2023-04-02 21:31:08,440 INFO L112 eAbstractionObserver]: Analyzing ICFG test30-1.c [2023-04-02 21:31:08,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:31:08,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:31:08,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:31:08,549 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;@4212356b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:31:08,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:31:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-04-02 21:31:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-02 21:31:08,560 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:31:08,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:31:08,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:31:08,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:31:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1607870467, now seen corresponding path program 1 times [2023-04-02 21:31:08,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:31:08,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742675335] [2023-04-02 21:31:08,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:31:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:31:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:31:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:31:09,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:31:09,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742675335] [2023-04-02 21:31:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742675335] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:31:09,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:31:09,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 21:31:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544771375] [2023-04-02 21:31:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:31:10,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 21:31:10,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:31:10,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 21:31:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 21:31:10,044 INFO L87 Difference]: Start difference. First operand has 20 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 11 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:31:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:31:10,380 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2023-04-02 21:31:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 21:31:10,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2023-04-02 21:31:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:31:10,388 INFO L225 Difference]: With dead ends: 24 [2023-04-02 21:31:10,388 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 21:31:10,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-04-02 21:31:10,397 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 21:31:10,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 21:31:10,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 21:31:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 21:31:10,418 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) [2023-04-02 21:31:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 21:31:10,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-04-02 21:31:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:31:10,420 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 21:31:10,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:31:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 21:31:10,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 21:31:10,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:31:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:31:10,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 21:31:10,703 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-04-02 21:31:10,704 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-04-02 21:31:10,704 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2023-04-02 21:31:10,704 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 21 35) no Hoare annotation was computed. [2023-04-02 21:31:10,705 INFO L895 garLoopResultBuilder]: At program point ERROR(lines 22 35) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-04-02 21:31:10,705 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 29) no Hoare annotation was computed. [2023-04-02 21:31:10,705 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 21 35) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-04-02 21:31:10,705 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse2 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse3 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse4 (select .cse2 0))) (or (let ((.cse1 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse0 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= (select .cse0 0) |~#a~0.base|) (= |#memory_int| |old(#memory_int)|) (= (select .cse1 4) |~#b~0.offset|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select .cse1 0) |~#a~0.offset|) (= main_~pd~0.offset 0) (= |~#b~0.base| (select .cse0 4)))) (not (= |~#b~0.base| (select .cse2 4))) (not (= (select .cse3 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse3 0) |~#a~0.offset|)) (= .cse4 |~#b~0.base|) (not (= .cse4 |~#a~0.base|))))) [2023-04-02 21:31:10,705 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 21 35) no Hoare annotation was computed. [2023-04-02 21:31:10,706 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-04-02 21:31:10,706 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 21:31:10,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:31:10,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:31:10,706 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select .cse2 0)) (.cse1 (select |#memory_$Pointer$.offset| |~#global~0.base|))) (and (not (= .cse0 |~#b~0.base|)) (= .cse0 |~#a~0.base|) (= (select .cse1 4) |~#b~0.offset|) (= |~#global~0.offset| 0) (= (select .cse1 0) |~#a~0.offset|) (= |~#b~0.base| (select .cse2 4))))) [2023-04-02 21:31:10,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 21:31:10,706 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 21:31:10,707 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2023-04-02 21:31:10,707 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 19) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-04-02 21:31:10,707 INFO L899 garLoopResultBuilder]: For program point assign2EXIT(lines 16 19) no Hoare annotation was computed. [2023-04-02 21:31:10,707 INFO L895 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (and (or (and (= (select (select |#memory_$Pointer$.base| |assign2_#in~pb.base|) 4) |assign2_#t~mem6.base|) (= |assign2_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= (select (select |#memory_$Pointer$.offset| |assign2_#in~pb.base|) 4) |assign2_#t~mem6.offset|)) (not (= 4 |assign2_#in~pb.offset|))) (= (select (select |#memory_$Pointer$.base| |assign2_#in~pa.base|) |assign2_#in~pa.offset|) |assign2_#t~mem5.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= .cse2 |~#a~0.base|))))) [2023-04-02 21:31:10,707 INFO L899 garLoopResultBuilder]: For program point assignEXIT(lines 11 14) no Hoare annotation was computed. [2023-04-02 21:31:10,708 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 14) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-04-02 21:31:10,711 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-04-02 21:31:10,713 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:31:10,722 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,722 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,723 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,723 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,723 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,726 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,727 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,727 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,727 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,727 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:31:10 BoogieIcfgContainer [2023-04-02 21:31:10,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:31:10,729 INFO L158 Benchmark]: Toolchain (without parser) took 2973.47ms. Allocated memory is still 266.3MB. Free memory was 231.9MB in the beginning and 216.7MB in the end (delta: 15.2MB). Peak memory consumption was 128.8MB. Max. memory is 8.0GB. [2023-04-02 21:31:10,730 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 181.4MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:31:10,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.12ms. Allocated memory is still 266.3MB. Free memory was 231.8MB in the beginning and 221.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-02 21:31:10,731 INFO L158 Benchmark]: Boogie Preprocessor took 38.19ms. Allocated memory is still 266.3MB. Free memory was 221.4MB in the beginning and 219.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 21:31:10,731 INFO L158 Benchmark]: RCFGBuilder took 421.66ms. Allocated memory is still 266.3MB. Free memory was 219.8MB in the beginning and 207.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-02 21:31:10,731 INFO L158 Benchmark]: TraceAbstraction took 2294.83ms. Allocated memory is still 266.3MB. Free memory was 206.8MB in the beginning and 216.7MB in the end (delta: -9.9MB). Peak memory consumption was 103.7MB. Max. memory is 8.0GB. [2023-04-02 21:31:10,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 181.4MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.12ms. Allocated memory is still 266.3MB. Free memory was 231.8MB in the beginning and 221.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.19ms. Allocated memory is still 266.3MB. Free memory was 221.4MB in the beginning and 219.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 421.66ms. Allocated memory is still 266.3MB. Free memory was 219.8MB in the beginning and 207.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2294.83ms. Allocated memory is still 266.3MB. Free memory was 206.8MB in the beginning and 216.7MB in the end (delta: -9.9MB). Peak memory consumption was 103.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * 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]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 7 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 421 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant [2023-04-02 21:31:10,740 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,740 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,740 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,740 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,740 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,741 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,741 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,741 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:31:10,742 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:31:10,742 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((!(b == \old(#memory_$Pointer$)[global][4]) || !(\old(#memory_$Pointer$)[global][4] == b)) || !(global == 0)) || !(\old(#memory_$Pointer$)[global][0] == a)) || \old(#memory_$Pointer$)[global][0] == b) || !(\old(#memory_$Pointer$)[global][0] == a) RESULT: Ultimate proved your program to be correct! [2023-04-02 21:31:10,757 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...