./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5e607d57754c4f188315c4983a58e4a794edbb35 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:20:55,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:20:55,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:20:55,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:20:55,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:20:55,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:20:55,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:20:55,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:20:55,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:20:55,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:20:55,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:20:55,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:20:55,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:20:55,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:20:55,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:20:55,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:20:55,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:20:55,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:20:55,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:20:55,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:20:55,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:20:55,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:20:55,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:20:55,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:20:55,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:20:55,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:20:55,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:20:55,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:20:55,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:20:55,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:20:55,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:20:55,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:20:55,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:20:55,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:20:55,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:20:55,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:20:55,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:20:55,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:20:55,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:20:55,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:20:55,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:20:55,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:20:55,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:20:55,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:20:55,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:20:55,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:20:55,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:20:55,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:20:55,946 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:20:55,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:20:55,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:20:55,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:20:55,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:20:55,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:20:55,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:20:55,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:20:55,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:20:55,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:20:55,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:20:55,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:20:55,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:20:55,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:20:55,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:20:55,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:20:55,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:20:55,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e607d57754c4f188315c4983a58e4a794edbb35 [2021-08-30 22:20:56,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:20:56,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:20:56,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:20:56,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:20:56,256 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:20:56,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-08-30 22:20:56,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d4ad2fde/a62b86ad6e044558844d4bddb2fcec64/FLAGfeff205c4 [2021-08-30 22:20:56,807 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:20:56,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-08-30 22:20:56,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d4ad2fde/a62b86ad6e044558844d4bddb2fcec64/FLAGfeff205c4 [2021-08-30 22:20:57,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d4ad2fde/a62b86ad6e044558844d4bddb2fcec64 [2021-08-30 22:20:57,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:20:57,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:20:57,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:20:57,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:20:57,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:20:57,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667e6427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57, skipping insertion in model container [2021-08-30 22:20:57,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:20:57,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:20:57,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:20:57,359 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:20:57,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:20:57,380 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:20:57,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57 WrapperNode [2021-08-30 22:20:57,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:20:57,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:20:57,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:20:57,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:20:57,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:20:57,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:20:57,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:20:57,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:20:57,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:20:57,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:20:57,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:20:57,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:20:57,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (1/1) ... [2021-08-30 22:20:57,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:20:57,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:20:57,454 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) [2021-08-30 22:20:57,484 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 [2021-08-30 22:20:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:20:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:20:57,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:20:57,606 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:20:57,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:20:57 BoogieIcfgContainer [2021-08-30 22:20:57,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:20:57,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:20:57,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:20:57,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:20:57,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:20:57" (1/3) ... [2021-08-30 22:20:57,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ec48a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:20:57, skipping insertion in model container [2021-08-30 22:20:57,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:20:57" (2/3) ... [2021-08-30 22:20:57,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ec48a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:20:57, skipping insertion in model container [2021-08-30 22:20:57,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:20:57" (3/3) ... [2021-08-30 22:20:57,615 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-08-30 22:20:57,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:20:57,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-30 22:20:57,662 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:20:57,672 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:20:57,673 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-30 22:20:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-08-30 22:20:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-08-30 22:20:57,690 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:20:57,690 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-08-30 22:20:57,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-08-30 22:20:57,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:20:57,697 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-08-30 22:20:57,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:20:57,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569472023] [2021-08-30 22:20:57,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:20:57,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:20:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:20:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:20:57,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:20:57,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569472023] [2021-08-30 22:20:57,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569472023] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:20:57,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:20:57,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-30 22:20:57,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755050606] [2021-08-30 22:20:57,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:20:57,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:20:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:20:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:20:57,910 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-30 22:20:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:20:57,958 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-08-30 22:20:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:20:57,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-08-30 22:20:57,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:20:57,966 INFO L225 Difference]: With dead ends: 14 [2021-08-30 22:20:57,967 INFO L226 Difference]: Without dead ends: 5 [2021-08-30 22:20:57,972 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:20:57,976 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.46ms IncrementalHoareTripleChecker+Time [2021-08-30 22:20:57,978 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 10 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 32.46ms Time] [2021-08-30 22:20:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2021-08-30 22:20:58,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-08-30 22:20:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-08-30 22:20:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-08-30 22:20:58,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2021-08-30 22:20:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:20:58,010 INFO L470 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-30 22:20:58,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-30 22:20:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2021-08-30 22:20:58,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:20:58,012 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:20:58,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:20:58,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:20:58,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-08-30 22:20:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:20:58,014 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-08-30 22:20:58,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:20:58,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17308986] [2021-08-30 22:20:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:20:58,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:20:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:20:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:20:58,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:20:58,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17308986] [2021-08-30 22:20:58,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17308986] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:20:58,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:20:58,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:20:58,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039845694] [2021-08-30 22:20:58,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:20:58,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:20:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:20:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:20:58,091 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-30 22:20:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:20:58,118 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2021-08-30 22:20:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:20:58,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-08-30 22:20:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:20:58,119 INFO L225 Difference]: With dead ends: 5 [2021-08-30 22:20:58,119 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:20:58,120 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:20:58,121 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.41ms IncrementalHoareTripleChecker+Time [2021-08-30 22:20:58,121 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 6.41ms Time] [2021-08-30 22:20:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:20:58,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:20:58,123 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) [2021-08-30 22:20:58,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:20:58,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-08-30 22:20:58,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:20:58,123 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:20:58,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-30 22:20:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:20:58,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:20:58,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-08-30 22:20:58,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-08-30 22:20:58,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:20:58,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:20:58,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:20:58,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:20:58,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-08-30 22:20:58,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:20:58,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-08-30 22:20:58,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:20:58,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:20:58,166 INFO L854 garLoopResultBuilder]: At program point L20(lines 13 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-08-30 22:20:58,166 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-08-30 22:20:58,166 INFO L858 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-08-30 22:20:58,166 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 23 ULTIMATE.start_main_~y~0)) [2021-08-30 22:20:58,167 INFO L858 garLoopResultBuilder]: For program point L17-3(lines 17 19) no Hoare annotation was computed. [2021-08-30 22:20:58,170 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:20:58,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:20:58 BoogieIcfgContainer [2021-08-30 22:20:58,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:20:58,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:20:58,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:20:58,195 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:20:58,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:20:57" (3/4) ... [2021-08-30 22:20:58,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:20:58,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-30 22:20:58,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-30 22:20:58,250 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:20:58,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:20:58,253 INFO L158 Benchmark]: Toolchain (without parser) took 1043.47ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 38.4MB in the end (delta: 8.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,254 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:20:58,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.55ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 37.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.44ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 36.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,255 INFO L158 Benchmark]: Boogie Preprocessor took 17.63ms. Allocated memory is still 67.1MB. Free memory was 36.4MB in the beginning and 35.5MB in the end (delta: 903.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:20:58,255 INFO L158 Benchmark]: RCFGBuilder took 183.99ms. Allocated memory is still 67.1MB. Free memory was 35.5MB in the beginning and 45.4MB in the end (delta: -9.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,255 INFO L158 Benchmark]: TraceAbstraction took 583.99ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 40.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,256 INFO L158 Benchmark]: Witness Printer took 58.71ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 38.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:20:58,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.55ms. Allocated memory is still 67.1MB. Free memory was 46.5MB in the beginning and 37.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.44ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 36.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.63ms. Allocated memory is still 67.1MB. Free memory was 36.4MB in the beginning and 35.5MB in the end (delta: 903.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 183.99ms. Allocated memory is still 67.1MB. Free memory was 35.5MB in the beginning and 45.4MB in the end (delta: -9.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 583.99ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 40.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 58.71ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 38.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 509.63ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.44ms, AutomataDifference: 140.54ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 37.02ms, InitialAbstractionConstructionTime: 10.16ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 38.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 32.79ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 15 mSolverCounterSat, 0.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.72ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 13.35ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 26.00ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.46ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 5.23ms SsaConstructionTime, 22.63ms SatisfiabilityAnalysisTime, 130.65ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 && 23 <= y - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-08-30 22:20:58,304 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...