./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/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 0d4863d19d9edc8c921323118a78f9e7d3499a81 .................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:55:02,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:55:02,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:55:02,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:55:02,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:55:02,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:55:02,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:55:02,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:55:02,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:55:02,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:55:02,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:55:02,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:55:02,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:55:02,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:55:02,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:55:02,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:55:02,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:55:02,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:55:02,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:55:02,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:55:02,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:55:02,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:55:02,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:55:02,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:55:02,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:55:02,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:55:02,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:55:02,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:55:02,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:55:02,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:55:02,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:55:02,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:55:02,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:55:02,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:55:02,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:55:02,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:55:02,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:55:02,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:55:02,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:55:02,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:55:02,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:55:02,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-25 08:55:02,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:55:02,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:55:02,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:55:02,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:55:02,724 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:55:02,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:55:02,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:55:02,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:55:02,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:55:02,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:55:02,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:55:02,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:55:02,725 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-25 08:55:02,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:55:02,726 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:55:02,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:55:02,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:55:02,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:55:02,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:55:02,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:55:02,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:02,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:55:02,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:55:02,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:55:02,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:55:02,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:55:02,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:55:02,728 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_0d5df379-245f-47a7-a4af-2e9137224f47/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 -> 0d4863d19d9edc8c921323118a78f9e7d3499a81 [2019-11-25 08:55:02,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:55:02,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:55:02,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:55:02,869 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:55:02,869 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:55:02,870 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2019-11-25 08:55:02,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/data/6fd909df9/0227b28e5e794e89ab6582070ad14d94/FLAG43227b14e [2019-11-25 08:55:03,266 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:55:03,267 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2019-11-25 08:55:03,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/data/6fd909df9/0227b28e5e794e89ab6582070ad14d94/FLAG43227b14e [2019-11-25 08:55:03,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/data/6fd909df9/0227b28e5e794e89ab6582070ad14d94 [2019-11-25 08:55:03,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:55:03,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:55:03,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:03,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:55:03,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:55:03,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fdab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03, skipping insertion in model container [2019-11-25 08:55:03,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:55:03,676 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:55:03,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:03,812 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:55:03,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:03,900 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:55:03,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03 WrapperNode [2019-11-25 08:55:03,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:03,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:03,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:55:03,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:55:03,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:03,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:55:03,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:55:03,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:55:03,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... [2019-11-25 08:55:03,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:55:03,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:55:03,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:55:03,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:55:03,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/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 [2019-11-25 08:55:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:55:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:55:04,182 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:55:04,183 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:55:04,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:04 BoogieIcfgContainer [2019-11-25 08:55:04,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:55:04,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:55:04,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:55:04,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:55:04,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:55:03" (1/3) ... [2019-11-25 08:55:04,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bbaec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:04, skipping insertion in model container [2019-11-25 08:55:04,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:03" (2/3) ... [2019-11-25 08:55:04,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bbaec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:04, skipping insertion in model container [2019-11-25 08:55:04,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:04" (3/3) ... [2019-11-25 08:55:04,194 INFO L109 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2019-11-25 08:55:04,202 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:55:04,209 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:55:04,219 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:55:04,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:55:04,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:55:04,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:55:04,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:55:04,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:55:04,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:55:04,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:55:04,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:55:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-25 08:55:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-25 08:55:04,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:04,267 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-25 08:55:04,268 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:55:04,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:04,273 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-25 08:55:04,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:04,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125932167] [2019-11-25 08:55:04,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:04,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125932167] [2019-11-25 08:55:04,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:04,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:55:04,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347639031] [2019-11-25 08:55:04,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:55:04,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:55:04,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:55:04,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:55:04,447 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-11-25 08:55:04,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:04,515 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-25 08:55:04,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:55:04,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-25 08:55:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:04,531 INFO L225 Difference]: With dead ends: 14 [2019-11-25 08:55:04,531 INFO L226 Difference]: Without dead ends: 5 [2019-11-25 08:55:04,534 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 [2019-11-25 08:55:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-11-25 08:55:04,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-25 08:55:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:55:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-11-25 08:55:04,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-11-25 08:55:04,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:04,567 INFO L462 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-25 08:55:04,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:55:04,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-11-25 08:55:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:55:04,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:04,568 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:55:04,568 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:55:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:04,569 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-25 08:55:04,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:04,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704803864] [2019-11-25 08:55:04,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:04,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704803864] [2019-11-25 08:55:04,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:04,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:55:04,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925853251] [2019-11-25 08:55:04,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:55:04,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:55:04,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:55:04,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:55:04,620 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-11-25 08:55:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:04,640 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-11-25 08:55:04,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:55:04,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-25 08:55:04,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:04,641 INFO L225 Difference]: With dead ends: 5 [2019-11-25 08:55:04,641 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:55:04,642 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 [2019-11-25 08:55:04,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:55:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:55:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:55:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:55:04,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-25 08:55:04,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:04,643 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:55:04,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:55:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:55:04,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:55:04,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:55:04,669 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-25 08:55:04,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:55:04,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-25 08:55:04,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:55:04,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:55:04,670 INFO L440 ceAbstractionStarter]: At program point L21(lines 13 22) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-25 08:55:04,670 INFO L444 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-25 08:55:04,671 INFO L444 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-11-25 08:55:04,671 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-25 08:55:04,671 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2019-11-25 08:55:04,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:55:04 BoogieIcfgContainer [2019-11-25 08:55:04,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:55:04,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:04,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:04,684 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:04,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:04" (3/4) ... [2019-11-25 08:55:04,688 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:55:04,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:55:04,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:55:04,736 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d5df379-245f-47a7-a4af-2e9137224f47/bin/uautomizer/witness.graphml [2019-11-25 08:55:04,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:04,739 INFO L168 Benchmark]: Toolchain (without parser) took 1090.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:04,739 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:04,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -207.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.34 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,741 INFO L168 Benchmark]: Boogie Preprocessor took 22.41 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,742 INFO L168 Benchmark]: RCFGBuilder took 226.06 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,743 INFO L168 Benchmark]: TraceAbstraction took 499.15 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,743 INFO L168 Benchmark]: Witness Printer took 52.60 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:04,747 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -207.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.34 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.41 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.06 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 499.15 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Witness Printer took 52.60 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 11 SDslu, 3 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...