./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer --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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:03:26,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:03:26,815 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:03:26,823 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:03:26,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:03:26,824 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:03:26,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:03:26,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:03:26,827 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:03:26,828 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:03:26,828 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:03:26,828 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:03:26,829 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:03:26,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:03:26,831 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:03:26,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:03:26,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:03:26,833 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:03:26,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:03:26,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:03:26,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:03:26,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:03:26,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:03:26,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:03:26,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:03:26,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:03:26,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:03:26,842 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:03:26,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:03:26,844 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:03:26,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:03:26,845 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:03:26,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:03:26,845 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:03:26,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:03:26,846 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:03:26,846 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:03:26,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:03:26,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:03:26,858 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:03:26,858 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:03:26,858 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:03:26,858 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:03:26,858 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:03:26,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:03:26,859 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:03:26,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:03:26,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:03:26,860 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:03:26,860 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:03:26,860 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:03:26,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:03:26,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:03:26,861 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer 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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-11-28 12:03:26,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:03:26,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:03:26,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:03:26,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:03:26,896 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:03:26,896 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 12:03:26,931 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/data/8042b31b1/63ca3496f2b1481688698d1a389fb118/FLAG49aae496d [2018-11-28 12:03:27,329 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:03:27,330 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 12:03:27,335 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/data/8042b31b1/63ca3496f2b1481688698d1a389fb118/FLAG49aae496d [2018-11-28 12:03:27,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/data/8042b31b1/63ca3496f2b1481688698d1a389fb118 [2018-11-28 12:03:27,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:03:27,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:03:27,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:03:27,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:03:27,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:03:27,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e991360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27, skipping insertion in model container [2018-11-28 12:03:27,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:03:27,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:03:27,472 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:03:27,474 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:03:27,483 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:03:27,493 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:03:27,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27 WrapperNode [2018-11-28 12:03:27,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:03:27,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:03:27,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:03:27,494 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:03:27,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:03:27,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:03:27,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:03:27,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:03:27,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... [2018-11-28 12:03:27,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:03:27,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:03:27,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:03:27,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:03:27,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:03:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:03:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:03:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:03:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:03:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:03:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:03:27,688 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:03:27,688 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:03:27,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:03:27 BoogieIcfgContainer [2018-11-28 12:03:27,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:03:27,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:03:27,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:03:27,692 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:03:27,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:03:27" (1/3) ... [2018-11-28 12:03:27,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebfe1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:03:27, skipping insertion in model container [2018-11-28 12:03:27,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:03:27" (2/3) ... [2018-11-28 12:03:27,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebfe1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:03:27, skipping insertion in model container [2018-11-28 12:03:27,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:03:27" (3/3) ... [2018-11-28 12:03:27,694 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 12:03:27,702 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:03:27,709 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:03:27,718 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:03:27,737 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:03:27,738 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:03:27,738 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:03:27,738 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:03:27,738 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:03:27,738 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:03:27,738 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:03:27,738 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:03:27,738 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:03:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 12:03:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:03:27,757 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:27,757 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:27,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:27,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:27,762 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-11-28 12:03:27,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:27,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:27,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:27,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:27,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:27,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:03:27,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:03:27,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:03:27,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:03:27,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:03:27,887 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-11-28 12:03:27,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:27,955 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-28 12:03:27,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:03:27,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 12:03:27,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:27,964 INFO L225 Difference]: With dead ends: 33 [2018-11-28 12:03:27,964 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 12:03:27,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:03:27,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 12:03:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 12:03:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 12:03:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 12:03:27,990 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-28 12:03:27,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:27,990 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 12:03:27,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:03:27,990 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 12:03:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:03:27,990 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:27,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:27,991 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:27,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-11-28 12:03:27,991 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:27,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:27,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:27,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:27,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:03:28,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:03:28,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:03:28,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:03:28,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:03:28,026 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-28 12:03:28,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:28,084 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-28 12:03:28,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:03:28,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 12:03:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:28,085 INFO L225 Difference]: With dead ends: 20 [2018-11-28 12:03:28,085 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 12:03:28,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:03:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 12:03:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 12:03:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 12:03:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 12:03:28,089 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-28 12:03:28,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:28,089 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 12:03:28,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:03:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 12:03:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:03:28,089 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:28,090 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:28,090 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:28,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:28,090 INFO L82 PathProgramCache]: Analyzing trace with hash 865022446, now seen corresponding path program 1 times [2018-11-28 12:03:28,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:28,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:28,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,136 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:03:28,137 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:03:28,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:03:28,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-28 12:03:28,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:03:28,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:03:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:03:28,252 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 8 states. [2018-11-28 12:03:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:28,298 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-28 12:03:28,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:03:28,299 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 12:03:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:28,300 INFO L225 Difference]: With dead ends: 28 [2018-11-28 12:03:28,301 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 12:03:28,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:03:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 12:03:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2018-11-28 12:03:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 12:03:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-28 12:03:28,305 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2018-11-28 12:03:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:28,306 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-28 12:03:28,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:03:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-28 12:03:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:03:28,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:28,306 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:28,307 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:28,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash 865022638, now seen corresponding path program 1 times [2018-11-28 12:03:28,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:28,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:03:28,332 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:03:28,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,414 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:03:28,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-28 12:03:28,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:03:28,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:03:28,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:03:28,415 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2018-11-28 12:03:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:28,558 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-28 12:03:28,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:03:28,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 12:03:28,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:28,559 INFO L225 Difference]: With dead ends: 52 [2018-11-28 12:03:28,559 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 12:03:28,559 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:03:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 12:03:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-11-28 12:03:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 12:03:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-28 12:03:28,564 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 13 [2018-11-28 12:03:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:28,564 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-28 12:03:28,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:03:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-28 12:03:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:03:28,565 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:28,565 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:28,565 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:28,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:28,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517224, now seen corresponding path program 1 times [2018-11-28 12:03:28,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:28,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:28,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:03:28,597 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:03:28,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:03:28,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-11-28 12:03:28,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:03:28,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:03:28,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:03:28,644 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 7 states. [2018-11-28 12:03:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:28,688 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2018-11-28 12:03:28,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:03:28,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 12:03:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:28,690 INFO L225 Difference]: With dead ends: 35 [2018-11-28 12:03:28,690 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 12:03:28,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:03:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 12:03:28,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2018-11-28 12:03:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 12:03:28,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-11-28 12:03:28,695 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2018-11-28 12:03:28,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:28,695 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-11-28 12:03:28,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:03:28,695 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-28 12:03:28,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:03:28,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:28,696 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:28,696 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:28,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517416, now seen corresponding path program 1 times [2018-11-28 12:03:28,697 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:28,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:28,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:03:28,724 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:03:28,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:03:28,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-28 12:03:28,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:03:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:03:28,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:03:28,769 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 8 states. [2018-11-28 12:03:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:28,824 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-11-28 12:03:28,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:03:28,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 12:03:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:28,824 INFO L225 Difference]: With dead ends: 37 [2018-11-28 12:03:28,825 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 12:03:28,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:03:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 12:03:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-11-28 12:03:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:03:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-11-28 12:03:28,829 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2018-11-28 12:03:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:28,829 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-11-28 12:03:28,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:03:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-28 12:03:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:03:28,830 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:03:28,830 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:03:28,830 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:03:28,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:03:28,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1987862754, now seen corresponding path program 1 times [2018-11-28 12:03:28,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:03:28,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:03:28,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:03:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,878 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:03:28,878 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:03:28,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:03:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:03:28,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:03:28,966 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:03:28,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-11-28 12:03:28,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:03:28,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:03:28,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:03:28,967 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2018-11-28 12:03:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:29,347 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-11-28 12:03:29,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 12:03:29,347 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-11-28 12:03:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:29,348 INFO L225 Difference]: With dead ends: 60 [2018-11-28 12:03:29,348 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:03:29,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=382, Invalid=878, Unknown=0, NotChecked=0, Total=1260 [2018-11-28 12:03:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:03:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:03:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:03:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:03:29,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 12:03:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:29,349 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:03:29,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:03:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:03:29,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:03:29,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:03:29,432 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:03:29,432 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:03:29,432 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:03:29,432 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:03:29,432 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:03:29,432 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 16 30) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 16 30) no Hoare annotation was computed. [2018-11-28 12:03:29,433 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:03:29,434 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 16 30) the Hoare annotation is: true [2018-11-28 12:03:29,434 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 26) no Hoare annotation was computed. [2018-11-28 12:03:29,434 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 28) no Hoare annotation was computed. [2018-11-28 12:03:29,434 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 21 27) the Hoare annotation is: (and (<= 0 main_~y1~0) (<= 0 main_~y2~0) (<= main_~y2~0 2147483647) (<= main_~y1~0 2147483647)) [2018-11-28 12:03:29,434 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 28) no Hoare annotation was computed. [2018-11-28 12:03:29,434 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:03:29,436 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:03:29,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:03:29 BoogieIcfgContainer [2018-11-28 12:03:29,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:03:29,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:03:29,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:03:29,444 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:03:29,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:03:27" (3/4) ... [2018-11-28 12:03:29,447 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:03:29,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:03:29,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:03:29,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:03:29,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:03:29,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:03:29,485 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6e27e90d-7870-490a-ba54-78f82ec1c0ed/bin-2019/uautomizer/witness.graphml [2018-11-28 12:03:29,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:03:29,486 INFO L168 Benchmark]: Toolchain (without parser) took 2137.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:03:29,487 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:03:29,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:29,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:03:29,488 INFO L168 Benchmark]: Boogie Preprocessor took 23.07 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 996.0 MB in the end (delta: -53.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:29,490 INFO L168 Benchmark]: RCFGBuilder took 159.63 ms. Allocated memory is still 1.0 GB. Free memory was 996.0 MB in the beginning and 993.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:29,490 INFO L168 Benchmark]: TraceAbstraction took 1754.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 993.6 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:29,490 INFO L168 Benchmark]: Witness Printer took 41.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:29,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.07 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 996.0 MB in the end (delta: -53.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.63 ms. Allocated memory is still 1.0 GB. Free memory was 996.0 MB in the beginning and 993.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1754.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 993.6 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= y1 && 0 <= y2) && y2 <= 2147483647) && y1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 1.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 179 SDslu, 132 SDs, 0 SdLazy, 458 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 42 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 15 NumberOfFragments, 18 HoareAnnotationTreeSize, 5 FomulaSimplifications, 263 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 396 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 8664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 20/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...