./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/Velroyen.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/Velroyen.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 ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 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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 22:21:52,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:21:52,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:21:52,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:21:52,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:21:52,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:21:52,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:21:52,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:21:52,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:21:52,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:21:52,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:21:52,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:21:52,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:21:52,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:21:52,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:21:52,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:21:52,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:21:52,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:21:52,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:21:52,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:21:52,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:21:52,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:21:52,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:21:52,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:21:52,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:21:52,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:21:52,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:21:52,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:21:52,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:21:52,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:21:52,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:21:52,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:21:52,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:21:52,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:21:52,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:21:52,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:21:52,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:21:52,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:21:52,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:21:52,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:21:52,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:21:52,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:21:52,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:21:52,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:21:52,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:21:52,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:21:52,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:21:52,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:21:52,270 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:21:52,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:21:52,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:21:52,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:21:52,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:21:52,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:21:52,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:21:52,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:21:52,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:21:52,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:21:52,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:21:52,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:21:52,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:21:52,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:21:52,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:21:52,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:21:52,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:21:52,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:21:52,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 [2021-08-30 22:21:52,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:21:52,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:21:52,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:21:52,600 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:21:52,617 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:21:52,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2021-08-30 22:21:52,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417b4e789/885dd5ce0f82401e9903ab03bbf0ccc8/FLAGa515bdbf3 [2021-08-30 22:21:53,021 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:21:53,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2021-08-30 22:21:53,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417b4e789/885dd5ce0f82401e9903ab03bbf0ccc8/FLAGa515bdbf3 [2021-08-30 22:21:53,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417b4e789/885dd5ce0f82401e9903ab03bbf0ccc8 [2021-08-30 22:21:53,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:21:53,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:21:53,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:21:53,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:21:53,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:21:53,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153c67e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53, skipping insertion in model container [2021-08-30 22:21:53,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:21:53,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:21:53,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:21:53,162 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:21:53,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:21:53,179 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:21:53,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53 WrapperNode [2021-08-30 22:21:53,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:21:53,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:21:53,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:21:53,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:21:53,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:21:53,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:21:53,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:21:53,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:21:53,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:21:53,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:21:53,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:21:53,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:21:53,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (1/1) ... [2021-08-30 22:21:53,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:21:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:21:53,269 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 22:21:53,287 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 22:21:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:21:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:21:53,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:21:53,372 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:21:53,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:53 BoogieIcfgContainer [2021-08-30 22:21:53,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:21:53,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:21:53,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:21:53,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:21:53,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:21:53" (1/3) ... [2021-08-30 22:21:53,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784940d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:21:53, skipping insertion in model container [2021-08-30 22:21:53,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:53" (2/3) ... [2021-08-30 22:21:53,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784940d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:21:53, skipping insertion in model container [2021-08-30 22:21:53,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:53" (3/3) ... [2021-08-30 22:21:53,380 INFO L111 eAbstractionObserver]: Analyzing ICFG Velroyen.c [2021-08-30 22:21:53,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:21:53,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-30 22:21:53,419 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:21:53,425 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 22:21:53,425 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-30 22:21:53,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 10 states have (on average 1.7) internal successors, (17), 12 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) [2021-08-30 22:21:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-30 22:21:53,441 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:53,441 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-30 22:21:53,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-08-30 22:21:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash 925773360, now seen corresponding path program 1 times [2021-08-30 22:21:53,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:53,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998566184] [2021-08-30 22:21:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:53,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:53,570 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 22:21:53,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:53,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998566184] [2021-08-30 22:21:53,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998566184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:53,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:53,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:21:53,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342485457] [2021-08-30 22:21:53,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:21:53,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:53,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:21:53,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:53,601 INFO L87 Difference]: Start difference. First operand has 13 states, 10 states have (on average 1.7) internal successors, (17), 12 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2021-08-30 22:21:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:53,673 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2021-08-30 22:21:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:21:53,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2021-08-30 22:21:53,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:53,680 INFO L225 Difference]: With dead ends: 19 [2021-08-30 22:21:53,680 INFO L226 Difference]: Without dead ends: 10 [2021-08-30 22:21:53,682 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:53,684 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.30ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:53,689 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 61.30ms Time] [2021-08-30 22:21:53,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-30 22:21:53,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-08-30 22:21:53,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 22:21:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-08-30 22:21:53,741 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 11 transitions. Word has length 6 [2021-08-30 22:21:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:53,741 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-08-30 22:21:53,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2021-08-30 22:21:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2021-08-30 22:21:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:21:53,742 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:53,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:21:53,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:21:53,742 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-08-30 22:21:53,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:53,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1365796855, now seen corresponding path program 1 times [2021-08-30 22:21:53,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:53,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804569982] [2021-08-30 22:21:53,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:53,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:53,773 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 22:21:53,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:53,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804569982] [2021-08-30 22:21:53,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804569982] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:53,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:53,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:21:53,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769808292] [2021-08-30 22:21:53,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:21:53,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:21:53,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:53,779 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 22:21:53,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:53,806 INFO L93 Difference]: Finished difference Result 10 states and 14 transitions. [2021-08-30 22:21:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:21:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-08-30 22:21:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:53,807 INFO L225 Difference]: With dead ends: 10 [2021-08-30 22:21:53,807 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:21:53,807 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:53,808 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.14ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:53,808 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 25.14ms Time] [2021-08-30 22:21:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:21:53,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:21:53,811 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 22:21:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:21:53,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-30 22:21:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:53,812 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:21:53,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 22:21:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:21:53,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:21:53,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-08-30 22:21:53,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-08-30 22:21:53,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:21:53,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:21:53,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:21:53,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:21:53,833 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-08-30 22:21:53,833 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:21:53,834 INFO L854 garLoopResultBuilder]: At program point L29(lines 12 30) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 35) [2021-08-30 22:21:53,834 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-08-30 22:21:53,834 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 27) no Hoare annotation was computed. [2021-08-30 22:21:53,834 INFO L861 garLoopResultBuilder]: At program point L15-1(lines 14 28) the Hoare annotation is: true [2021-08-30 22:21:53,834 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-08-30 22:21:53,834 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:21:53,835 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:21:53,835 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-08-30 22:21:53,835 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-08-30 22:21:53,835 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 24) no Hoare annotation was computed. [2021-08-30 22:21:53,835 INFO L858 garLoopResultBuilder]: For program point L14-2(lines 14 28) no Hoare annotation was computed. [2021-08-30 22:21:53,838 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:21:53,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:21:53 BoogieIcfgContainer [2021-08-30 22:21:53,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:21:53,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:21:53,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:21:53,852 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:21:53,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:53" (3/4) ... [2021-08-30 22:21:53,858 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:21:53,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-30 22:21:53,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-30 22:21:53,895 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:21:53,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:21:53,897 INFO L158 Benchmark]: Toolchain (without parser) took 857.82ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 32.1MB in the beginning and 47.8MB in the end (delta: -15.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,897 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:21:53,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.38ms. Allocated memory is still 54.5MB. Free memory was 31.9MB in the beginning and 36.7MB in the end (delta: -4.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.98ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 36.7MB in the beginning and 59.2MB in the end (delta: -22.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,898 INFO L158 Benchmark]: Boogie Preprocessor took 37.36ms. Allocated memory is still 75.5MB. Free memory was 59.2MB in the beginning and 58.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,898 INFO L158 Benchmark]: RCFGBuilder took 136.13ms. Allocated memory is still 75.5MB. Free memory was 58.1MB in the beginning and 50.4MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,899 INFO L158 Benchmark]: TraceAbstraction took 474.81ms. Allocated memory is still 75.5MB. Free memory was 50.1MB in the beginning and 49.9MB in the end (delta: 159.9kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,899 INFO L158 Benchmark]: Witness Printer took 45.84ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:21:53,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.38ms. Allocated memory is still 54.5MB. Free memory was 31.9MB in the beginning and 36.7MB in the end (delta: -4.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.98ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 36.7MB in the beginning and 59.2MB in the end (delta: -22.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.36ms. Allocated memory is still 75.5MB. Free memory was 59.2MB in the beginning and 58.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 136.13ms. Allocated memory is still 75.5MB. Free memory was 58.1MB in the beginning and 50.4MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 474.81ms. Allocated memory is still 75.5MB. Free memory was 50.1MB in the beginning and 49.9MB in the end (delta: 159.9kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 45.84ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 420.24ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.41ms, AutomataDifference: 144.14ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 16.52ms, InitialAbstractionConstructionTime: 8.25ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 86.44ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 55.42ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 37 mSolverCounterSat, 0.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.44ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 38.03ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 4.67ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.01ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 4.50ms SsaConstructionTime, 22.14ms SatisfiabilityAnalysisTime, 75.25ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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: 12]: Loop Invariant Derived loop invariant: x <= 35 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-30 22:21:53,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...