/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:53:41,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:53:41,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:53:41,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:53:41,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:53:41,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:53:41,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:53:41,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:53:41,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:53:41,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:53:41,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:53:41,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:53:41,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:53:41,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:53:41,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:53:41,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:53:41,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:53:41,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:53:41,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:53:41,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:53:41,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:53:41,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:53:41,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:53:41,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:53:41,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:53:41,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:53:41,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:53:41,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:53:41,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:53:41,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:53:41,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:53:41,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:53:41,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:53:41,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:53:41,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:53:41,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:53:41,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:53:41,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:53:41,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:53:41,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:53:41,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:53:41,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:53:41,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:53:41,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:53:41,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:53:41,605 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:53:41,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:53:41,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:53:41,606 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:53:41,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:53:41,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:53:41,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:53:41,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:53:41,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:53:41,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:53:41,608 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:53:41,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:53:41,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:53:41,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:53:41,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:53:41,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:53:41,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:53:41,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:53:41,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:53:41,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:53:41,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:53:41,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:53:41,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:53:41,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:53:41,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:53:41,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:53:42,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:53:42,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:53:42,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:53:42,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:53:42,092 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:53:42,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-10-16 17:53:42,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6dbe298/6f69f88789fd49c5bd93ef8d8342bc4d/FLAG3c745ecd8 [2022-10-16 17:53:42,975 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:53:42,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-10-16 17:53:42,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6dbe298/6f69f88789fd49c5bd93ef8d8342bc4d/FLAG3c745ecd8 [2022-10-16 17:53:43,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6dbe298/6f69f88789fd49c5bd93ef8d8342bc4d [2022-10-16 17:53:43,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:53:43,242 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:53:43,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:53:43,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:53:43,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:53:43,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24abb46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43, skipping insertion in model container [2022-10-16 17:53:43,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:53:43,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:53:43,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:53:43,687 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:53:43,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:53:43,800 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:53:43,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43 WrapperNode [2022-10-16 17:53:43,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:53:43,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:53:43,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:53:43,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:53:43,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,914 INFO L138 Inliner]: procedures = 110, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-10-16 17:53:43,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:53:43,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:53:43,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:53:43,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:53:43,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,973 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:53:43,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:53:43,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:53:43,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:53:43,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (1/1) ... [2022-10-16 17:53:43,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:53:44,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:53:44,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:53:44,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:53:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:53:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:53:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:53:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:53:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:53:44,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:53:44,278 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:53:44,281 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:53:44,502 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:53:44,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:53:44,511 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:53:44,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:53:44 BoogieIcfgContainer [2022-10-16 17:53:44,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:53:44,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:53:44,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:53:44,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:53:44,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:53:43" (1/3) ... [2022-10-16 17:53:44,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3efc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:53:44, skipping insertion in model container [2022-10-16 17:53:44,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:43" (2/3) ... [2022-10-16 17:53:44,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3efc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:53:44, skipping insertion in model container [2022-10-16 17:53:44,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:53:44" (3/3) ... [2022-10-16 17:53:44,528 INFO L112 eAbstractionObserver]: Analyzing ICFG GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-10-16 17:53:44,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:53:44,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:53:44,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:53:44,681 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;@23edb662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:53:44,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:53:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.625) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:53:44,697 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:44,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:53:44,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:53:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2022-10-16 17:53:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:44,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823533222] [2022-10-16 17:53:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:44,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:53:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:53:45,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:53:45,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823533222] [2022-10-16 17:53:45,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823533222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:53:45,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:53:45,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:53:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693805416] [2022-10-16 17:53:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:53:45,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:53:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:53:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:53:45,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:53:45,471 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.625) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:53:45,646 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-16 17:53:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:53:45,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 17:53:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:53:45,662 INFO L225 Difference]: With dead ends: 39 [2022-10-16 17:53:45,663 INFO L226 Difference]: Without dead ends: 23 [2022-10-16 17:53:45,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:53:45,681 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:53:45,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 47 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:53:45,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-16 17:53:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2022-10-16 17:53:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-10-16 17:53:45,727 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 5 [2022-10-16 17:53:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:53:45,728 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-10-16 17:53:45,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-10-16 17:53:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:53:45,730 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:45,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:53:45,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:53:45,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:53:45,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:45,733 INFO L85 PathProgramCache]: Analyzing trace with hash 889510666, now seen corresponding path program 1 times [2022-10-16 17:53:45,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:45,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664302306] [2022-10-16 17:53:45,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:45,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:53:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:53:45,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:53:45,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664302306] [2022-10-16 17:53:45,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664302306] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:53:45,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:53:45,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:53:45,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487450285] [2022-10-16 17:53:45,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:53:45,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:53:45,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:53:45,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:53:45,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:53:45,921 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:53:45,991 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-10-16 17:53:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:53:45,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:53:45,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:53:45,993 INFO L225 Difference]: With dead ends: 24 [2022-10-16 17:53:45,993 INFO L226 Difference]: Without dead ends: 23 [2022-10-16 17:53:45,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:53:45,996 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:53:45,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 25 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:53:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-16 17:53:46,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 14. [2022-10-16 17:53:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-10-16 17:53:46,002 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2022-10-16 17:53:46,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:53:46,003 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-10-16 17:53:46,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-10-16 17:53:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:53:46,004 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:46,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:53:46,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:53:46,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:53:46,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:46,006 INFO L85 PathProgramCache]: Analyzing trace with hash 381032210, now seen corresponding path program 1 times [2022-10-16 17:53:46,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:46,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557534769] [2022-10-16 17:53:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:46,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:53:46,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:53:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:53:46,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:53:46,104 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:53:46,105 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:53:46,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:53:46,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:53:46,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:53:46,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:53:46,117 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-16 17:53:46,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:53:46,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:53:46 BoogieIcfgContainer [2022-10-16 17:53:46,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:53:46,206 INFO L158 Benchmark]: Toolchain (without parser) took 2967.88ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 61.9MB in the end (delta: 62.2MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,206 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 121.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:53:46,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.34ms. Allocated memory is still 151.0MB. Free memory was 123.9MB in the beginning and 108.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.63ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 107.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,214 INFO L158 Benchmark]: Boogie Preprocessor took 61.05ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,214 INFO L158 Benchmark]: RCFGBuilder took 537.00ms. Allocated memory is still 151.0MB. Free memory was 105.6MB in the beginning and 126.4MB in the end (delta: -20.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,217 INFO L158 Benchmark]: TraceAbstraction took 1686.85ms. Allocated memory is still 151.0MB. Free memory was 125.9MB in the beginning and 61.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-10-16 17:53:46,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 121.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 558.34ms. Allocated memory is still 151.0MB. Free memory was 123.9MB in the beginning and 108.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 109.63ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 107.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.05ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 537.00ms. Allocated memory is still 151.0MB. Free memory was 105.6MB in the beginning and 126.4MB in the end (delta: -20.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1686.85ms. Allocated memory is still 151.0MB. Free memory was 125.9MB in the beginning and 61.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. 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: 557]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* id = __builtin_alloca (sizeof(int)); [L549] int* maxId = __builtin_alloca (sizeof(int)); [L550] *id = __VERIFIER_nondet_int() [L551] *maxId = __VERIFIER_nondet_int() [L552] EXPR \read(*id) [L552] 0 <= *id && *id < *maxId [L552] EXPR \read(*id) [L552] EXPR \read(*maxId) [L552] 0 <= *id && *id < *maxId VAL [0 <= *id && *id < *maxId=1, \read(*id)=2147483646, \read(*id)=2147483646, \read(*maxId)=2147483647, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={5:0}, id={3:0}, maxId={5:0}] [L552] COND TRUE 0 <= *id && *id < *maxId [L553] int* tmp = __builtin_alloca (sizeof(int)); [L554] EXPR \read(*id) VAL [\read(*id)=2147483646, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, id={3:0}, maxId={5:0}, tmp={2:0}] [L554] EXPR *id + 1 [L554] *tmp = *id + 1 [L555] EXPR \read(*tmp) [L555] EXPR \read(*id) [L555] *tmp != *id && __VERIFIER_nondet_int() [L555] *tmp != *id && __VERIFIER_nondet_int() VAL [*tmp != *id && __VERIFIER_nondet_int()=1, \read(*id)=2147483646, \read(*tmp)=2147483647, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __VERIFIER_nondet_int()=1, id={3:0}, maxId={5:0}, tmp={2:0}] [L555] COND TRUE *tmp != *id && __VERIFIER_nondet_int() [L556] EXPR \read(*tmp) [L556] EXPR \read(*maxId) VAL [\read(*maxId)=2147483647, \read(*tmp)=2147483647, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, id={3:0}, maxId={5:0}, tmp={2:0}] [L556] COND TRUE *tmp <= *maxId [L557] EXPR \read(*tmp) VAL [\read(*tmp)=2147483647, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, id={3:0}, maxId={5:0}, tmp={2:0}] [L557] *tmp + 1 VAL [\read(*tmp)=2147483647, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, id={3:0}, maxId={5:0}, tmp={2:0}] - UnprovableResult [Line: 554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 20 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2022-10-16 17:53:46,288 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...