./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Bangalore-2.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/Bangalore-2.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 9c51224894dcd32e556532086a33c2900554a2d1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 14:54:45,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 14:54:45,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 14:54:45,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 14:54:45,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 14:54:45,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 14:54:45,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 14:54:45,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 14:54:45,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 14:54:45,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 14:54:45,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 14:54:45,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 14:54:45,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 14:54:45,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 14:54:45,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 14:54:45,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 14:54:45,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 14:54:45,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 14:54:45,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 14:54:45,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 14:54:45,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 14:54:45,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 14:54:45,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 14:54:45,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 14:54:45,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 14:54:45,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 14:54:45,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 14:54:45,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 14:54:45,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 14:54:45,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 14:54:45,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 14:54:45,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 14:54:45,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 14:54:45,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 14:54:45,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 14:54:45,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 14:54:45,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 14:54:45,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 14:54:45,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 14:54:45,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 14:54:45,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 14:54:45,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 14:54:45,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 14:54:45,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 14:54:45,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 14:54:45,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 14:54:45,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 14:54:45,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 14:54:45,490 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 14:54:45,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 14:54:45,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 14:54:45,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 14:54:45,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:54:45,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 14:54:45,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 14:54:45,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 14:54:45,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2021-07-06 14:54:45,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 14:54:45,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 14:54:45,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 14:54:45,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 14:54:45,878 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 14:54:45,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Bangalore-2.c [2021-07-06 14:54:45,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f673792d/c4e503a61aef46c194e7c058bb2237ee/FLAG5f03ba439 [2021-07-06 14:54:46,320 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 14:54:46,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Bangalore-2.c [2021-07-06 14:54:46,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f673792d/c4e503a61aef46c194e7c058bb2237ee/FLAG5f03ba439 [2021-07-06 14:54:46,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f673792d/c4e503a61aef46c194e7c058bb2237ee [2021-07-06 14:54:46,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 14:54:46,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 14:54:46,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 14:54:46,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 14:54:46,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 14:54:46,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf49b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46, skipping insertion in model container [2021-07-06 14:54:46,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 14:54:46,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 14:54:46,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:54:46,487 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 14:54:46,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:54:46,509 INFO L208 MainTranslator]: Completed translation [2021-07-06 14:54:46,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46 WrapperNode [2021-07-06 14:54:46,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 14:54:46,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 14:54:46,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 14:54:46,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 14:54:46,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 14:54:46,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 14:54:46,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 14:54:46,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 14:54:46,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 14:54:46,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 14:54:46,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 14:54:46,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 14:54:46,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (1/1) ... [2021-07-06 14:54:46,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:54:46,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 14:54:46,600 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 14:54:46,610 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 14:54:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 14:54:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 14:54:46,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 14:54:46,798 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 14:54:46,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:46 BoogieIcfgContainer [2021-07-06 14:54:46,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 14:54:46,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 14:54:46,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 14:54:46,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 14:54:46,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 02:54:46" (1/3) ... [2021-07-06 14:54:46,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea2b74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:54:46, skipping insertion in model container [2021-07-06 14:54:46,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:54:46" (2/3) ... [2021-07-06 14:54:46,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea2b74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:54:46, skipping insertion in model container [2021-07-06 14:54:46,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:46" (3/3) ... [2021-07-06 14:54:46,809 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore-2.c [2021-07-06 14:54:46,822 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 14:54:46,823 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-06 14:54:46,871 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:54:46,879 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 14:54:46,880 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:54:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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 14:54:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 14:54:46,900 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:46,901 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 14:54:46,901 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2021-07-06 14:54:46,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:46,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391346943] [2021-07-06 14:54:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:46,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:47,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:47,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:47,078 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 14:54:47,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:47,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391346943] [2021-07-06 14:54:47,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391346943] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:54:47,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:54:47,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:54:47,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209486618] [2021-07-06 14:54:47,088 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:54:47,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:47,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:54:47,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:54:47,102 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:47,225 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2021-07-06 14:54:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 14:54:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-07-06 14:54:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:47,233 INFO L225 Difference]: With dead ends: 28 [2021-07-06 14:54:47,234 INFO L226 Difference]: Without dead ends: 13 [2021-07-06 14:54:47,236 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:54:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-07-06 14:54:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2021-07-06 14:54:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 14:54:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-07-06 14:54:47,262 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-07-06 14:54:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:47,262 INFO L442 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-07-06 14:54:47,263 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-07-06 14:54:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-06 14:54:47,263 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:47,264 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-07-06 14:54:47,264 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 14:54:47,264 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:47,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2021-07-06 14:54:47,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:47,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218068034] [2021-07-06 14:54:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:47,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:47,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:47,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:47,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:47,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218068034] [2021-07-06 14:54:47,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218068034] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 14:54:47,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744375066] [2021-07-06 14:54:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:47,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 14:54:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 14:54:47,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-06 14:54:47,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-06 14:54:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-06 14:54:47,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 14:54:47,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 14:54:47,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:47,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 14:54:47,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:47,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 14:54:47,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 14:54:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 14:54:47,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 14:54:47,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 14:54:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:54:47,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744375066] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:54:47,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-06 14:54:47,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-07-06 14:54:47,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460145812] [2021-07-06 14:54:47,486 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 14:54:47,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:47,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 14:54:47,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-06 14:54:47,490 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-07-06 14:54:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:47,511 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-07-06 14:54:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 14:54:47,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 [2021-07-06 14:54:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:47,512 INFO L225 Difference]: With dead ends: 9 [2021-07-06 14:54:47,513 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:54:47,513 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-06 14:54:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:54:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:54:47,514 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 14:54:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:54:47,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-07-06 14:54:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:47,515 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:54:47,515 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-07-06 14:54:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:54:47,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:54:47,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:54:47,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:47,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:47,546 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,547 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,547 INFO L758 garLoopResultBuilder]: At program point L23(lines 13 24) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 14:54:47,547 INFO L758 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,548 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 14:54:47,549 INFO L762 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-07-06 14:54:47,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-06 14:54:47,773 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 14:54:47,774 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:54:47,776 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/2) [2021-07-06 14:54:47,779 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:54:47,780 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 14:54:47,780 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:54:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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 14:54:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:54:47,781 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:54:47,781 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:54:47,782 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:54:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:54:47,782 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2021-07-06 14:54:47,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:54:47,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447594674] [2021-07-06 14:54:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:54:47,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:54:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:54:47,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:54:47,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:54:47,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 14:54:47,805 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 14:54:47,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:54:47,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447594674] [2021-07-06 14:54:47,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447594674] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:54:47,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:54:47,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:54:47,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144859082] [2021-07-06 14:54:47,807 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:54:47,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:54:47,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:54:47,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:54:47,809 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:54:47,836 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-07-06 14:54:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 14:54:47,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-07-06 14:54:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:54:47,837 INFO L225 Difference]: With dead ends: 15 [2021-07-06 14:54:47,837 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:54:47,838 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:54:47,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:54:47,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:54:47,838 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 14:54:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:54:47,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-07-06 14:54:47,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:54:47,839 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:54:47,839 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:54:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:54:47,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:54:47,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:54:47,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:47,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:54:47,846 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,846 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,846 INFO L758 garLoopResultBuilder]: At program point L23(lines 13 24) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:54:47,847 INFO L758 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:54:47,847 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,847 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,847 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:54:47,847 INFO L762 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,848 INFO L762 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-07-06 14:54:47,848 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 14:54:47,848 INFO L762 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-07-06 14:54:47,848 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-06 14:54:47,848 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:54:47,849 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/2) [2021-07-06 14:54:47,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 02:54:47 BoogieIcfgContainer [2021-07-06 14:54:47,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 14:54:47,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 14:54:47,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 14:54:47,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 14:54:47,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:54:46" (3/4) ... [2021-07-06 14:54:47,879 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-06 14:54:47,887 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-07-06 14:54:47,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-06 14:54:47,941 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 14:54:47,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 14:54:47,942 INFO L168 Benchmark]: Toolchain (without parser) took 1593.04 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 29.2 MB in the beginning and 67.3 MB in the end (delta: -38.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:47,943 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 52.4 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:54:47,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.35 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.0 MB in the beginning and 54.8 MB in the end (delta: -25.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:47,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 59.1 MB in the end (delta: -4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:47,944 INFO L168 Benchmark]: Boogie Preprocessor took 14.64 ms. Allocated memory is still 75.5 MB. Free memory was 59.1 MB in the beginning and 58.2 MB in the end (delta: 906.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:54:47,945 INFO L168 Benchmark]: RCFGBuilder took 226.85 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 49.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:47,945 INFO L168 Benchmark]: TraceAbstraction took 1059.42 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 48.5 MB in the beginning and 69.4 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:54:47,946 INFO L168 Benchmark]: Witness Printer took 78.57 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 14:54:47,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 52.4 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 159.35 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.0 MB in the beginning and 54.8 MB in the end (delta: -25.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 59.1 MB in the end (delta: -4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.64 ms. Allocated memory is still 75.5 MB. Free memory was 59.1 MB in the beginning and 58.2 MB in the end (delta: 906.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 226.85 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 49.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1059.42 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 48.5 MB in the beginning and 69.4 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 78.57 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 908.1ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 10.4ms, AutomataDifference: 174.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 27.7ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 24 SDslu, 3 SDs, 0 SdLazy, 29 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 9.6ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 12.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.3ms SsaConstructionTime, 38.1ms SatisfiabilityAnalysisTime, 252.9ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 70.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.0ms, AutomataDifference: 30.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5.2ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.9ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4ms SsaConstructionTime, 3.5ms SatisfiabilityAnalysisTime, 15.7ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-07-06 14:54:47,999 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...