./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 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/BradleyMannaSipma-ICALP2005-Fig1.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 d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:07:58,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:07:58,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:07:58,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:07:58,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:07:58,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:07:58,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:07:58,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:07:58,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:07:58,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:07:58,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:07:58,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:07:58,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:07:58,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:07:58,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:07:58,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:07:58,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:07:58,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:07:58,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:07:58,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:07:58,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:07:58,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:07:58,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:07:58,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:07:58,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:07:58,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:07:58,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:07:58,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:07:58,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:07:58,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:07:58,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:07:58,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:07:58,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:07:58,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:07:58,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:07:58,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:07:58,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:07:58,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:07:58,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:07:58,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:07:58,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:07:58,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 15:07:58,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:07:58,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:07:58,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:07:58,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:07:58,202 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:07:58,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:07:58,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:07:58,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:07:58,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:07:58,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:07:58,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:07:58,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:07:58,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:07:58,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:07:58,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:07:58,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:07:58,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:07:58,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:07:58,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:07:58,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:07:58,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:07:58,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:07:58,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2021-07-06 15:07:58,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:07:58,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:07:58,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:07:58,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:07:58,561 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:07:58,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2021-07-06 15:07:58,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cbd4128/8780b70a77d7400abf6dfe26323a410b/FLAG6ef920d42 [2021-07-06 15:07:59,109 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:07:59,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2021-07-06 15:07:59,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cbd4128/8780b70a77d7400abf6dfe26323a410b/FLAG6ef920d42 [2021-07-06 15:07:59,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cbd4128/8780b70a77d7400abf6dfe26323a410b [2021-07-06 15:07:59,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:07:59,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:07:59,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:07:59,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:07:59,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:07:59,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215c37ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59, skipping insertion in model container [2021-07-06 15:07:59,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:07:59,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:07:59,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:07:59,647 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:07:59,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:07:59,680 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:07:59,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59 WrapperNode [2021-07-06 15:07:59,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:07:59,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:07:59,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:07:59,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:07:59,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:07:59,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:07:59,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:07:59,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:07:59,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:07:59,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:07:59,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:07:59,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:07:59,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (1/1) ... [2021-07-06 15:07:59,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:07:59,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:07:59,814 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) [2021-07-06 15:07:59,833 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 [2021-07-06 15:07:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:07:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:08:00,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:08:00,130 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 15:08:00,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:00 BoogieIcfgContainer [2021-07-06 15:08:00,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:08:00,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:08:00,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:08:00,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:08:00,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:07:59" (1/3) ... [2021-07-06 15:08:00,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7068e237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:08:00, skipping insertion in model container [2021-07-06 15:08:00,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:07:59" (2/3) ... [2021-07-06 15:08:00,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7068e237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:08:00, skipping insertion in model container [2021-07-06 15:08:00,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:00" (3/3) ... [2021-07-06 15:08:00,141 INFO L111 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1.c [2021-07-06 15:08:00,158 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:08:00,158 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-07-06 15:08:00,213 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:08:00,219 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:08:00,221 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:08:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-07-06 15:08:00,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-07-06 15:08:00,241 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:08:00,241 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-07-06 15:08:00,242 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:08:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:08:00,247 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-07-06 15:08:00,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:08:00,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925395078] [2021-07-06 15:08:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:00,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:08:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:08:00,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:00,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:08:00,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:00,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:08:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:08:00,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:08:00,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925395078] [2021-07-06 15:08:00,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925395078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:08:00,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:08:00,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:08:00,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215669622] [2021-07-06 15:08:00,416 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:08:00,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:08:00,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:08:00,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:08:00,433 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 states have internal predecessors, (33), 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), 3 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) [2021-07-06 15:08:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:08:00,591 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-07-06 15:08:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:08:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2021-07-06 15:08:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:08:00,599 INFO L225 Difference]: With dead ends: 51 [2021-07-06 15:08:00,599 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:08:00,602 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:08:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:08:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:08:00,619 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) [2021-07-06 15:08:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:08:00,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-07-06 15:08:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:08:00,621 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:08:00,621 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2021-07-06 15:08:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:08:00,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:08:00,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:08:00,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:00,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:00,640 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:08:00,641 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:08:00,642 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:08:00,642 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 29) no Hoare annotation was computed. [2021-07-06 15:08:00,643 INFO L765 garLoopResultBuilder]: At program point L24-2(lines 23 30) the Hoare annotation is: true [2021-07-06 15:08:00,643 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:00,643 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-07-06 15:08:00,643 INFO L765 garLoopResultBuilder]: At program point L33(lines 14 34) the Hoare annotation is: true [2021-07-06 15:08:00,643 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 32) no Hoare annotation was computed. [2021-07-06 15:08:00,644 INFO L762 garLoopResultBuilder]: For program point L21-1(lines 21 32) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-07-06 15:08:00,645 INFO L762 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-07-06 15:08:00,646 INFO L762 garLoopResultBuilder]: For program point L22-2(lines 22 31) no Hoare annotation was computed. [2021-07-06 15:08:00,646 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-07-06 15:08:00,646 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:08:00,647 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:08:00,650 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/10) [2021-07-06 15:08:00,659 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:08:00,660 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:08:00,661 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:08:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-07-06 15:08:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 15:08:00,666 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:08:00,666 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 15:08:00,667 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:08:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:08:00,668 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-07-06 15:08:00,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:08:00,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989005034] [2021-07-06 15:08:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:00,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:08:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:08:00,687 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:08:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:08:00,702 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:08:00,716 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 15:08:00,719 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 15:08:00,720 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-06 15:08:00,720 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:08:00,720 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was UNSAFE (2/10) [2021-07-06 15:08:00,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:08:00 BoogieIcfgContainer [2021-07-06 15:08:00,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:08:00,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:08:00,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:08:00,744 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:08:00,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:00" (3/4) ... [2021-07-06 15:08:00,747 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 15:08:00,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:08:00,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:08:00,777 INFO L168 Benchmark]: Toolchain (without parser) took 1258.50 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.8 MB in the beginning and 61.4 MB in the end (delta: -15.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:00,777 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 65.0 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:00,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.02 ms. Allocated memory is still 65.0 MB. Free memory was 45.6 MB in the beginning and 37.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:00,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 65.0 MB. Free memory was 37.1 MB in the beginning and 50.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:00,779 INFO L168 Benchmark]: Boogie Preprocessor took 35.89 ms. Allocated memory is still 65.0 MB. Free memory was 50.0 MB in the beginning and 49.2 MB in the end (delta: 812.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:00,779 INFO L168 Benchmark]: RCFGBuilder took 347.32 ms. Allocated memory is still 65.0 MB. Free memory was 49.2 MB in the beginning and 37.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:00,779 INFO L168 Benchmark]: TraceAbstraction took 610.75 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.9 MB in the beginning and 62.7 MB in the end (delta: -25.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:00,780 INFO L168 Benchmark]: Witness Printer took 32.67 ms. Allocated memory is still 79.7 MB. Free memory was 62.7 MB in the beginning and 61.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:00,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 65.0 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 159.02 ms. Allocated memory is still 65.0 MB. Free memory was 45.6 MB in the beginning and 37.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 65.0 MB. Free memory was 37.1 MB in the beginning and 50.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.89 ms. Allocated memory is still 65.0 MB. Free memory was 50.0 MB in the beginning and 49.2 MB in the end (delta: 812.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 347.32 ms. Allocated memory is still 65.0 MB. Free memory was 49.2 MB in the beginning and 37.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 610.75 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.9 MB in the beginning and 62.7 MB in the end (delta: -25.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Witness Printer took 32.67 ms. Allocated memory is still 79.7 MB. Free memory was 62.7 MB in the beginning and 61.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 [L22] x + y - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 439.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.6ms, AutomataDifference: 184.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 14.1ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 5 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 5.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.9ms SsaConstructionTime, 21.5ms SatisfiabilityAnalysisTime, 57.4ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 61.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3ms SsaConstructionTime, 12.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be incorrect! [2021-07-06 15:08:00,816 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...