./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9c51224894dcd32e556532086a33c2900554a2d1 ............................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:44:49,064 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:44:49,065 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:44:49,071 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:44:49,071 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:44:49,072 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:44:49,073 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:44:49,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:44:49,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:44:49,075 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:44:49,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:44:49,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:44:49,076 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:44:49,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:44:49,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:44:49,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:44:49,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:44:49,079 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:44:49,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:44:49,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:44:49,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:44:49,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:44:49,082 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:44:49,083 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:44:49,083 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:44:49,083 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:44:49,084 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:44:49,084 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:44:49,084 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:44:49,085 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:44:49,085 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:44:49,085 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:44:49,086 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:44:49,086 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:44:49,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:44:49,087 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:44:49,087 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-02 03:44:49,094 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:44:49,094 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:44:49,094 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:44:49,095 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 03:44:49,095 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:44:49,095 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:44:49,095 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:44:49,095 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:44:49,096 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:44:49,097 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:44:49,097 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 03:44:49,097 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 03:44:49,097 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:44:49,097 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:44:49,097 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 03:44:49,097 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:44:49,097 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:44:49,098 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:44:49,098 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 03:44:49,098 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:44:49,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 03:44:49,098 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak 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 -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2018-12-02 03:44:49,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:44:49,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:44:49,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:44:49,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:44:49,125 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:44:49,125 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-02 03:44:49,160 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/data/d556bacf0/b5b1a200538548cda49d9b23e3ddde38/FLAG2cc4f1ec5 [2018-12-02 03:44:49,605 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:44:49,605 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-02 03:44:49,609 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/data/d556bacf0/b5b1a200538548cda49d9b23e3ddde38/FLAG2cc4f1ec5 [2018-12-02 03:44:49,617 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/data/d556bacf0/b5b1a200538548cda49d9b23e3ddde38 [2018-12-02 03:44:49,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:44:49,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:44:49,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:44:49,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:44:49,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:44:49,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49, skipping insertion in model container [2018-12-02 03:44:49,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:44:49,636 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:44:49,721 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:44:49,723 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:44:49,731 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:44:49,739 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:44:49,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49 WrapperNode [2018-12-02 03:44:49,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:44:49,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:44:49,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:44:49,740 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:44:49,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:44:49,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:44:49,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:44:49,757 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:44:49,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:44:49,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:44:49,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:44:49,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:44:49,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-12-02 03:44:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:44:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:44:49,917 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:44:49,917 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 03:44:49,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:44:49 BoogieIcfgContainer [2018-12-02 03:44:49,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:44:49,918 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 03:44:49,918 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 03:44:49,927 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 03:44:49,927 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:44:49" (1/1) ... [2018-12-02 03:44:49,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:44:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2018-12-02 03:44:49,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-12-02 03:44:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 03:44:49,962 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 03:44:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:44:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:44:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2018-12-02 03:44:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2018-12-02 03:44:50,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 03:44:50,090 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 03:44:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:44:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:44:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2018-12-02 03:44:50,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2018-12-02 03:44:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 03:44:50,272 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 03:44:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:44:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:44:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 17 states and 29 transitions. [2018-12-02 03:44:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 29 transitions. [2018-12-02 03:44:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 03:44:50,518 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 03:44:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:44:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 03:44:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2018-12-02 03:44:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2018-12-02 03:44:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 03:44:50,674 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 03:44:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:44:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 03:44:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 03:44:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-12-02 03:44:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-12-02 03:44:50,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 03:44:50,777 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2018-12-02 03:44:50,783 INFO L779 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-12-02 03:44:50,802 INFO L583 CodeCheckObserver]: Invariant with dag size 10 [2018-12-02 03:44:50,809 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 03:44:50,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 03:44:50 ImpRootNode [2018-12-02 03:44:50,810 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 03:44:50,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:44:50,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:44:50,810 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:44:50,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:44:49" (3/4) ... [2018-12-02 03:44:50,813 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 03:44:50,819 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 03:44:50,819 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 03:44:50,819 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 03:44:50,846 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e06fe29-b4e8-4bdb-9336-07c88ccbdc12/bin-2019/ukojak/witness.graphml [2018-12-02 03:44:50,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:44:50,846 INFO L168 Benchmark]: Toolchain (without parser) took 1227.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 956.0 MB in the beginning and 909.4 MB in the end (delta: 46.5 MB). Peak memory consumption was 147.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:44:50,847 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:44:50,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:44:50,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:44:50,848 INFO L168 Benchmark]: Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:44:50,849 INFO L168 Benchmark]: RCFGBuilder took 149.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:44:50,849 INFO L168 Benchmark]: CodeCheck took 892.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.8 MB in the end (delta: 172.1 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. [2018-12-02 03:44:50,850 INFO L168 Benchmark]: Witness Printer took 35.94 ms. Allocated memory is still 1.1 GB. Free memory was 914.8 MB in the beginning and 909.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 03:44:50,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 2 error locations. SAFE Result, 0.8s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 178 SDslu, 0 SDs, 0 SdLazy, 954 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 274 SyntacticMatches, 14 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/12 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x <= y + 2147483646 && 1 <= y) && y <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * CodeCheck took 892.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.8 MB in the end (delta: 172.1 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.94 ms. Allocated memory is still 1.1 GB. Free memory was 914.8 MB in the beginning and 909.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...