./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:51:47,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:51:47,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:51:47,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:51:47,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:51:47,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:51:47,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:51:47,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:51:47,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:51:47,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:51:47,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:51:47,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:51:47,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:51:47,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:51:47,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:51:47,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:51:47,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:51:47,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:51:47,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:51:47,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:51:47,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:51:47,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:51:47,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:51:47,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:51:47,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:51:47,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:51:47,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:51:47,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:51:47,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:51:47,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:51:47,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:51:47,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:51:47,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:51:47,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:51:47,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:51:47,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:51:47,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:51:47,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:51:47,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:51:47,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:51:47,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:51:47,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 18:51:47,981 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:51:47,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:51:47,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:51:47,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:51:47,982 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:51:47,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:51:47,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:51:47,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 18:51:47,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:51:47,984 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:51:47,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:51:47,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:51:47,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:51:47,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:51:47,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:51:47,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:51:47,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:51:47,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:51:47,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/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 -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2019-12-07 18:51:48,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:51:48,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:51:48,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:51:48,110 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:51:48,111 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:51:48,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2019-12-07 18:51:48,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/data/9546c70cb/e46cb6af1fb843f283915d983afb19a6/FLAG69834524f [2019-12-07 18:51:48,482 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:51:48,483 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2019-12-07 18:51:48,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/data/9546c70cb/e46cb6af1fb843f283915d983afb19a6/FLAG69834524f [2019-12-07 18:51:48,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/data/9546c70cb/e46cb6af1fb843f283915d983afb19a6 [2019-12-07 18:51:48,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:51:48,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:51:48,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:51:48,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:51:48,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:51:48,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b37d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48, skipping insertion in model container [2019-12-07 18:51:48,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:51:48,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:51:48,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:51:48,622 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:51:48,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:51:48,678 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:51:48,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48 WrapperNode [2019-12-07 18:51:48,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:51:48,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:51:48,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:51:48,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:51:48,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:51:48,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:51:48,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:51:48,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:51:48,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... [2019-12-07 18:51:48,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:51:48,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:51:48,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:51:48,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:51:48,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/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 [2019-12-07 18:51:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:51:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:51:48,854 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:51:48,854 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:51:48,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:51:48 BoogieIcfgContainer [2019-12-07 18:51:48,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:51:48,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:51:48,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:51:48,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:51:48,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:51:48" (1/3) ... [2019-12-07 18:51:48,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49586e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:51:48, skipping insertion in model container [2019-12-07 18:51:48,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:51:48" (2/3) ... [2019-12-07 18:51:48,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49586e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:51:48, skipping insertion in model container [2019-12-07 18:51:48,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:51:48" (3/3) ... [2019-12-07 18:51:48,860 INFO L109 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1.c [2019-12-07 18:51:48,866 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:51:48,870 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-12-07 18:51:48,878 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-07 18:51:48,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:51:48,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:51:48,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:51:48,892 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:51:48,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:51:48,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:51:48,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:51:48,893 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:51:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-12-07 18:51:48,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:51:48,906 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:51:48,907 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:51:48,907 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:51:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:51:48,911 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2019-12-07 18:51:48,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:51:48,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009951618] [2019-12-07 18:51:48,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:51:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:51:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:51:49,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009951618] [2019-12-07 18:51:49,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:51:49,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:51:49,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43580099] [2019-12-07 18:51:49,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:51:49,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:51:49,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:51:49,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:51:49,031 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-12-07 18:51:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:51:49,129 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2019-12-07 18:51:49,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:51:49,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 18:51:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:51:49,139 INFO L225 Difference]: With dead ends: 45 [2019-12-07 18:51:49,139 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:51:49,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:51:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:51:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2019-12-07 18:51:49,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 18:51:49,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 18:51:49,166 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2019-12-07 18:51:49,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:51:49,166 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 18:51:49,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:51:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 18:51:49,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:51:49,167 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:51:49,167 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:51:49,167 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:51:49,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:51:49,168 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-12-07 18:51:49,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:51:49,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429593498] [2019-12-07 18:51:49,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:51:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:51:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:51:49,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429593498] [2019-12-07 18:51:49,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:51:49,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:51:49,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417750348] [2019-12-07 18:51:49,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:51:49,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:51:49,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:51:49,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:51:49,194 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-12-07 18:51:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:51:49,243 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-12-07 18:51:49,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:51:49,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 18:51:49,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:51:49,244 INFO L225 Difference]: With dead ends: 31 [2019-12-07 18:51:49,244 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 18:51:49,244 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:51:49,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 18:51:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 15. [2019-12-07 18:51:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:51:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-12-07 18:51:49,247 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2019-12-07 18:51:49,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:51:49,248 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-12-07 18:51:49,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:51:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-12-07 18:51:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 18:51:49,248 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:51:49,248 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 18:51:49,248 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:51:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:51:49,249 INFO L82 PathProgramCache]: Analyzing trace with hash 29873486, now seen corresponding path program 1 times [2019-12-07 18:51:49,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:51:49,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26379161] [2019-12-07 18:51:49,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:51:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:51:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:51:49,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26379161] [2019-12-07 18:51:49,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:51:49,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:51:49,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590549393] [2019-12-07 18:51:49,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:51:49,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:51:49,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:51:49,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:51:49,268 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2019-12-07 18:51:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:51:49,290 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-12-07 18:51:49,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:51:49,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 18:51:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:51:49,291 INFO L225 Difference]: With dead ends: 15 [2019-12-07 18:51:49,291 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 18:51:49,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:51:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 18:51:49,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 18:51:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:51:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-12-07 18:51:49,294 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2019-12-07 18:51:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:51:49,294 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-07 18:51:49,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:51:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-07 18:51:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 18:51:49,295 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:51:49,295 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 18:51:49,295 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:51:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:51:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-12-07 18:51:49,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:51:49,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206050302] [2019-12-07 18:51:49,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:51:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:51:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:51:49,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206050302] [2019-12-07 18:51:49,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:51:49,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:51:49,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996736063] [2019-12-07 18:51:49,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:51:49,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:51:49,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:51:49,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:51:49,317 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2019-12-07 18:51:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:51:49,335 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-07 18:51:49,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:51:49,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 18:51:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:51:49,335 INFO L225 Difference]: With dead ends: 13 [2019-12-07 18:51:49,336 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:51:49,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:51:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:51:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:51:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:51:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:51:49,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 18:51:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:51:49,337 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:51:49,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:51:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:51:49,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:51:49,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:51:49,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,365 INFO L246 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:51:49,366 INFO L242 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~q~0 2147483647) [2019-12-07 18:51:49,367 INFO L246 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2019-12-07 18:51:49,367 INFO L242 CegarLoopResult]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~q~0 2147483647)) [2019-12-07 18:51:49,367 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-12-07 18:51:49,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:51:49 BoogieIcfgContainer [2019-12-07 18:51:49,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:51:49,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:51:49,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:51:49,379 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:51:49,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:51:48" (3/4) ... [2019-12-07 18:51:49,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:51:49,389 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:51:49,389 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:51:49,417 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ee843ad-b682-4041-9bb1-256f5fa2b601/bin/uautomizer/witness.graphml [2019-12-07 18:51:49,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:51:49,419 INFO L168 Benchmark]: Toolchain (without parser) took 920.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 938.1 MB in the beginning and 995.4 MB in the end (delta: -57.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:51:49,419 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:51:49,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:51:49,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:51:49,420 INFO L168 Benchmark]: Boogie Preprocessor took 11.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:51:49,420 INFO L168 Benchmark]: RCFGBuilder took 143.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:51:49,420 INFO L168 Benchmark]: TraceAbstraction took 522.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.4 MB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:51:49,421 INFO L168 Benchmark]: Witness Printer took 38.40 ms. Allocated memory is still 1.1 GB. Free memory is still 995.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:51:49,422 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 522.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.4 MB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.40 ms. Allocated memory is still 1.1 GB. Free memory is still 995.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= y + 2147483648 && y <= 2147483647) && q <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: q <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 104 SDslu, 3 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...