./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.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/TelAviv-Amir-Minimum.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 687269bb6882b72a3d48999f1e5c55a1d5283a94 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:55:26,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 14:55:26,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 14:55:26,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 14:55:26,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 14:55:26,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 14:55:26,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 14:55:26,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 14:55:26,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 14:55:26,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 14:55:26,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 14:55:26,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 14:55:26,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 14:55:26,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 14:55:26,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 14:55:26,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 14:55:26,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 14:55:26,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 14:55:26,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 14:55:26,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 14:55:26,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 14:55:26,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 14:55:26,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 14:55:26,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 14:55:26,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 14:55:26,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 14:55:26,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 14:55:26,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 14:55:26,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 14:55:26,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 14:55:26,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 14:55:26,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 14:55:26,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 14:55:26,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 14:55:26,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 14:55:26,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 14:55:26,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 14:55:26,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 14:55:26,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 14:55:26,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 14:55:26,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 14:55:26,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 14:55:26,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 14:55:26,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 14:55:26,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 14:55:26,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 14:55:26,395 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 14:55:26,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 14:55:26,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 14:55:26,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 14:55:26,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 14:55:26,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 14:55:26,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 14:55:26,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 14:55:26,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 14:55:26,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 14:55:26,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:55:26,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 14:55:26,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 14:55:26,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2021-07-06 14:55:26,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 14:55:26,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 14:55:26,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 14:55:26,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 14:55:26,682 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 14:55:26,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-07-06 14:55:26,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78772acec/260d38d1bea5468e8dd2e52fbef65822/FLAGc512dff72 [2021-07-06 14:55:27,059 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 14:55:27,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-07-06 14:55:27,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78772acec/260d38d1bea5468e8dd2e52fbef65822/FLAGc512dff72 [2021-07-06 14:55:27,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78772acec/260d38d1bea5468e8dd2e52fbef65822 [2021-07-06 14:55:27,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 14:55:27,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 14:55:27,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 14:55:27,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 14:55:27,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 14:55:27,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e151a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27, skipping insertion in model container [2021-07-06 14:55:27,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 14:55:27,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 14:55:27,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:55:27,633 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 14:55:27,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 14:55:27,651 INFO L208 MainTranslator]: Completed translation [2021-07-06 14:55:27,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27 WrapperNode [2021-07-06 14:55:27,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 14:55:27,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 14:55:27,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 14:55:27,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 14:55:27,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 14:55:27,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 14:55:27,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 14:55:27,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 14:55:27,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 14:55:27,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 14:55:27,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 14:55:27,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 14:55:27,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (1/1) ... [2021-07-06 14:55:27,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 14:55:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 14:55:27,738 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 14:55:27,767 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 14:55:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 14:55:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 14:55:27,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 14:55:27,956 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 14:55:27,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:55:27 BoogieIcfgContainer [2021-07-06 14:55:27,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 14:55:27,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 14:55:27,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 14:55:27,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 14:55:27,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 02:55:27" (1/3) ... [2021-07-06 14:55:27,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a8662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:55:27, skipping insertion in model container [2021-07-06 14:55:27,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 02:55:27" (2/3) ... [2021-07-06 14:55:27,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a8662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 02:55:27, skipping insertion in model container [2021-07-06 14:55:27,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:55:27" (3/3) ... [2021-07-06 14:55:27,978 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-07-06 14:55:27,982 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 14:55:27,982 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-07-06 14:55:28,023 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,027 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 14:55:28,028 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:55:28,043 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,044 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:55:28,049 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2021-07-06 14:55:28,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977325208] [2021-07-06 14:55:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,175 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 14:55:28,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977325208] [2021-07-06 14:55:28,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977325208] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 14:55:28,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214054708] [2021-07-06 14:55:28,183 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,198 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 2.5) internal successors, (5), 2 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 14:55:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,275 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-07-06 14:55:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,282 INFO L225 Difference]: With dead ends: 55 [2021-07-06 14:55:28,282 INFO L226 Difference]: Without dead ends: 30 [2021-07-06 14:55:28,284 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-07-06 14:55:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-07-06 14:55:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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 14:55:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2021-07-06 14:55:28,304 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 5 [2021-07-06 14:55:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,305 INFO L442 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-07-06 14:55:28,305 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2021-07-06 14:55:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 14:55:28,306 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,307 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,307 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 14:55:28,308 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash 528899004, now seen corresponding path program 1 times [2021-07-06 14:55:28,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979344748] [2021-07-06 14:55:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,358 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 14:55:28,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979344748] [2021-07-06 14:55:28,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979344748] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 14:55:28,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486758484] [2021-07-06 14:55:28,360 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:55:28,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:55:28,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:55:28,361 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,406 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-07-06 14:55:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-06 14:55:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,407 INFO L225 Difference]: With dead ends: 24 [2021-07-06 14:55:28,407 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,408 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:55:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,409 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 14:55:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-06 14:55:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,410 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,410 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,429 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,429 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,429 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,430 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,430 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648)) [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,431 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,432 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,432 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,432 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,432 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-06 14:55:28,432 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,434 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/8) [2021-07-06 14:55:28,436 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,441 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 14:55:28,442 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 14:55:28,444 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,444 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,444 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,447 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2021-07-06 14:55:28,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267418497] [2021-07-06 14:55:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,461 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 14:55:28,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267418497] [2021-07-06 14:55:28,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267418497] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:55:28,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103020476] [2021-07-06 14:55:28,462 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,463 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,481 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2021-07-06 14:55:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 14:55:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,482 INFO L225 Difference]: With dead ends: 31 [2021-07-06 14:55:28,482 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,483 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,483 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 14:55:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 14:55:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,484 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,484 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,488 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,489 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,490 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648)) [2021-07-06 14:55:28,490 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,491 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,491 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,491 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,491 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,491 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,491 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-06 14:55:28,491 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,492 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/8) [2021-07-06 14:55:28,493 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,494 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 14:55:28,494 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:55:28,496 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,496 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:55:28,496 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,496 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2021-07-06 14:55:28,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830137840] [2021-07-06 14:55:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,510 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 14:55:28,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830137840] [2021-07-06 14:55:28,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830137840] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 14:55:28,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505035330] [2021-07-06 14:55:28,511 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,512 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 2.5) internal successors, (5), 2 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 14:55:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,554 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-07-06 14:55:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,556 INFO L225 Difference]: With dead ends: 55 [2021-07-06 14:55:28,556 INFO L226 Difference]: Without dead ends: 30 [2021-07-06 14:55:28,556 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-07-06 14:55:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-07-06 14:55:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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 14:55:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-07-06 14:55:28,559 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 5 [2021-07-06 14:55:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,559 INFO L442 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-07-06 14:55:28,559 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-07-06 14:55:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 14:55:28,560 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,560 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,560 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-06 14:55:28,560 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,561 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2021-07-06 14:55:28,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659747416] [2021-07-06 14:55:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:55:28,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659747416] [2021-07-06 14:55:28,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659747416] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 14:55:28,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514631418] [2021-07-06 14:55:28,593 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:55:28,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:55:28,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:55:28,595 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,634 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2021-07-06 14:55:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-06 14:55:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,636 INFO L225 Difference]: With dead ends: 22 [2021-07-06 14:55:28,637 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,637 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:55:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,637 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 14:55:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-06 14:55:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,638 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,638 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,655 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,655 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,655 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,655 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,656 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,657 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,657 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,657 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,658 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,658 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,658 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,659 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,660 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,660 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:28,660 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,662 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,662 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,662 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,663 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,663 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,663 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-06 14:55:28,663 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,663 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (3/8) [2021-07-06 14:55:28,667 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,670 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 14:55:28,670 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 14:55:28,672 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,672 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,672 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,673 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2021-07-06 14:55:28,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352619957] [2021-07-06 14:55:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,685 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 14:55:28,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352619957] [2021-07-06 14:55:28,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352619957] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:55:28,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993311790] [2021-07-06 14:55:28,686 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,687 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,710 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2021-07-06 14:55:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 14:55:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,711 INFO L225 Difference]: With dead ends: 31 [2021-07-06 14:55:28,711 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,711 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,712 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 14:55:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 14:55:28,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,712 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,712 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,715 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,716 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,717 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,718 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,719 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,719 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-06 14:55:28,719 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,719 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (4/8) [2021-07-06 14:55:28,720 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,720 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 14:55:28,721 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:55:28,722 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,722 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:55:28,722 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,722 INFO L82 PathProgramCache]: Analyzing trace with hash 29880469, now seen corresponding path program 1 times [2021-07-06 14:55:28,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645153800] [2021-07-06 14:55:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,733 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 14:55:28,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645153800] [2021-07-06 14:55:28,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645153800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 14:55:28,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687854420] [2021-07-06 14:55:28,734 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,735 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 2.5) internal successors, (5), 2 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 14:55:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,785 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-07-06 14:55:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,786 INFO L225 Difference]: With dead ends: 55 [2021-07-06 14:55:28,787 INFO L226 Difference]: Without dead ends: 30 [2021-07-06 14:55:28,788 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-07-06 14:55:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-07-06 14:55:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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 14:55:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-07-06 14:55:28,792 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 5 [2021-07-06 14:55:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,792 INFO L442 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-07-06 14:55:28,793 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-07-06 14:55:28,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 14:55:28,794 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,794 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,794 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-06 14:55:28,794 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,795 INFO L82 PathProgramCache]: Analyzing trace with hash 528915885, now seen corresponding path program 1 times [2021-07-06 14:55:28,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882760735] [2021-07-06 14:55:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 14:55:28,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882760735] [2021-07-06 14:55:28,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882760735] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 14:55:28,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259988389] [2021-07-06 14:55:28,825 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:55:28,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:55:28,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:55:28,830 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,856 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2021-07-06 14:55:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-06 14:55:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,857 INFO L225 Difference]: With dead ends: 22 [2021-07-06 14:55:28,857 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,857 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:55:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,860 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 14:55:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-06 14:55:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,861 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,861 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,870 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,871 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,872 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:28,873 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,873 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,874 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,874 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,878 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,878 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,878 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-06 14:55:28,878 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,878 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (5/8) [2021-07-06 14:55:28,882 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,882 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 14:55:28,882 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 14:55:28,885 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,885 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 14:55:28,885 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,885 INFO L82 PathProgramCache]: Analyzing trace with hash 926294606, now seen corresponding path program 1 times [2021-07-06 14:55:28,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648853173] [2021-07-06 14:55:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:28,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,921 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 14:55:28,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648853173] [2021-07-06 14:55:28,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648853173] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:55:28,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798450670] [2021-07-06 14:55:28,922 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,922 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:28,938 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2021-07-06 14:55:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:28,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 14:55:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:28,939 INFO L225 Difference]: With dead ends: 31 [2021-07-06 14:55:28,939 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:28,939 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:28,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:28,940 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 14:55:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:28,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 14:55:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:28,940 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:28,940 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:28,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:28,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:28,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:28,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:28,944 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,944 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,944 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:28,945 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:28,946 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:28,947 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:28,947 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-06 14:55:28,947 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:28,947 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (6/8) [2021-07-06 14:55:28,950 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:28,950 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 14:55:28,950 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-06 14:55:28,952 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:28,952 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-06 14:55:28,953 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:28,953 INFO L82 PathProgramCache]: Analyzing trace with hash 29880661, now seen corresponding path program 1 times [2021-07-06 14:55:28,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:28,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144872060] [2021-07-06 14:55:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:28,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:28,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:28,980 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 14:55:28,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:28,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144872060] [2021-07-06 14:55:28,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144872060] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:28,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:28,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 14:55:28,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298914850] [2021-07-06 14:55:28,981 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:28,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:28,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:28,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:28,982 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 2.5) internal successors, (5), 2 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 14:55:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:29,015 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-07-06 14:55:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:29,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:29,016 INFO L225 Difference]: With dead ends: 55 [2021-07-06 14:55:29,016 INFO L226 Difference]: Without dead ends: 30 [2021-07-06 14:55:29,016 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-07-06 14:55:29,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-07-06 14:55:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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 14:55:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2021-07-06 14:55:29,019 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 5 [2021-07-06 14:55:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:29,019 INFO L442 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-07-06 14:55:29,019 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:55:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2021-07-06 14:55:29,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 14:55:29,020 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:29,020 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 14:55:29,020 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-06 14:55:29,020 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:29,020 INFO L82 PathProgramCache]: Analyzing trace with hash 149020322, now seen corresponding path program 1 times [2021-07-06 14:55:29,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:29,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802362938] [2021-07-06 14:55:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:29,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:29,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:29,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:29,036 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 14:55:29,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:29,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802362938] [2021-07-06 14:55:29,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802362938] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:29,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:29,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 14:55:29,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623126307] [2021-07-06 14:55:29,037 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 14:55:29,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:29,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 14:55:29,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 14:55:29,038 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:29,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:29,059 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-07-06 14:55:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:29,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-06 14:55:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:29,060 INFO L225 Difference]: With dead ends: 24 [2021-07-06 14:55:29,060 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:29,060 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 14:55:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:29,061 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 14:55:29,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:29,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-06 14:55:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:29,061 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:29,061 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:29,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:29,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:29,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:29,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,067 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,068 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:29,069 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:29,070 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,070 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-06 14:55:29,070 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:29,070 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (7/8) [2021-07-06 14:55:29,071 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 14:55:29,071 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 14:55:29,071 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 14:55:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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 14:55:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 14:55:29,072 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 14:55:29,072 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 14:55:29,072 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 14:55:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 14:55:29,073 INFO L82 PathProgramCache]: Analyzing trace with hash 926300564, now seen corresponding path program 1 times [2021-07-06 14:55:29,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 14:55:29,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100770869] [2021-07-06 14:55:29,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 14:55:29,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 14:55:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 14:55:29,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:29,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 14:55:29,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 14:55:29,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 14:55:29,085 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 14:55:29,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 14:55:29,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100770869] [2021-07-06 14:55:29,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100770869] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 14:55:29,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 14:55:29,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 14:55:29,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760053276] [2021-07-06 14:55:29,086 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 14:55:29,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 14:55:29,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 14:55:29,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:29,087 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:29,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 14:55:29,105 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2021-07-06 14:55:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 14:55:29,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 14:55:29,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 14:55:29,106 INFO L225 Difference]: With dead ends: 31 [2021-07-06 14:55:29,106 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 14:55:29,106 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 14:55:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 14:55:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 14:55:29,107 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 14:55:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 14:55:29,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 14:55:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 14:55:29,107 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 14:55:29,107 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 14:55:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 14:55:29,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 14:55:29,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 14:55:29,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:29,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 14:55:29,110 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,110 INFO L762 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,111 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L765 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-07-06 14:55:29,112 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,113 INFO L762 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,113 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,113 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L758 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-07-06 14:55:29,114 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-07-06 14:55:29,114 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-06 14:55:29,114 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 14:55:29,115 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (8/8) [2021-07-06 14:55:29,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 02:55:29 BoogieIcfgContainer [2021-07-06 14:55:29,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 14:55:29,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 14:55:29,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 14:55:29,128 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 14:55:29,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 02:55:27" (3/4) ... [2021-07-06 14:55:29,130 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-06 14:55:29,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-07-06 14:55:29,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-06 14:55:29,164 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 14:55:29,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 14:55:29,165 INFO L168 Benchmark]: Toolchain (without parser) took 1670.60 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.9 MB in the beginning and 48.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-07-06 14:55:29,165 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:55:29,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.00 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 34.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 14:55:29,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.45 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 46.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 14:55:29,166 INFO L168 Benchmark]: Boogie Preprocessor took 22.21 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:55:29,166 INFO L168 Benchmark]: RCFGBuilder took 238.26 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 34.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 14:55:29,167 INFO L168 Benchmark]: TraceAbstraction took 1166.53 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 14:55:29,167 INFO L168 Benchmark]: Witness Printer took 36.82 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 48.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 14:55:29,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 157.00 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 34.2 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 42.45 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 46.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.21 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 238.26 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 34.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1166.53 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 36.82 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 48.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 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 - 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 - 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 - 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 412.9ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 6.9ms, AutomataDifference: 148.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 14.8ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 40 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 5.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 4.1ms SsaConstructionTime, 28.7ms SatisfiabilityAnalysisTime, 66.9ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 55.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 20.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.9ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4ms SsaConstructionTime, 2.3ms SatisfiabilityAnalysisTime, 9.5ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 170.2ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 1.1ms, AutomataDifference: 88.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15.4ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 40 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 10.2ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0ms SsaConstructionTime, 7.2ms SatisfiabilityAnalysisTime, 30.8ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 3/3 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.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 51.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 25.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.6ms, InitialAbstractionConstructionTime: 0.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3ms SsaConstructionTime, 2.0ms SatisfiabilityAnalysisTime, 7.7ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 158.2ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 1.9ms, AutomataDifference: 85.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 7.9ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 40 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 4.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 9.5ms SatisfiabilityAnalysisTime, 25.3ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 3/3 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.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 66.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.9ms, AutomataDifference: 17.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3.1ms, InitialAbstractionConstructionTime: 1.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.6ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4ms SsaConstructionTime, 10.5ms SatisfiabilityAnalysisTime, 20.1ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 120.3ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 1.3ms, AutomataDifference: 58.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 40 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9ms SsaConstructionTime, 8.1ms SatisfiabilityAnalysisTime, 29.4ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 43.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.6ms, AutomataDifference: 19.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.5ms, InitialAbstractionConstructionTime: 0.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2ms SsaConstructionTime, 1.1ms SatisfiabilityAnalysisTime, 8.9ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((x <= 2147483648 && x <= 2147483647) && y <= 2147483648) && y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-07-06 14:55:29,214 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...