./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/gcd02_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/gcd02_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/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 32bit --witnessprinter.graph.data.programhash 4ba31a8852254650e4ff6b6614669c496c01110f ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:40:54,981 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:40:54,982 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:40:54,990 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:40:54,990 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:40:54,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:40:54,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:40:54,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:40:54,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:40:54,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:40:54,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:40:54,995 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:40:54,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:40:54,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:40:54,997 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:40:54,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:40:54,998 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:40:54,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:40:55,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:40:55,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:40:55,003 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:40:55,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:40:55,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:40:55,005 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:40:55,005 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:40:55,006 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:40:55,007 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:40:55,007 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:40:55,008 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:40:55,009 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:40:55,009 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:40:55,009 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:40:55,010 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:40:55,010 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:40:55,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:40:55,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:40:55,011 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-23 06:40:55,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:40:55,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:40:55,022 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:40:55,022 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 06:40:55,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:40:55,023 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:40:55,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:40:55,023 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:40:55,023 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:40:55,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:40:55,025 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:40:55,025 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:40:55,025 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 06:40:55,025 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 06:40:55,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:40:55,025 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:40:55,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 06:40:55,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:40:55,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:40:55,026 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:40:55,026 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 06:40:55,026 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:40:55,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:40:55,026 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_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba31a8852254650e4ff6b6614669c496c01110f [2018-11-23 06:40:55,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:40:55,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:40:55,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:40:55,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:40:55,059 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:40:55,059 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/../../sv-benchmarks/c/recursive/gcd02_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 06:40:55,095 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/data/f892abdc0/3ae8814cc32c4f87b374d9cb925af52f/FLAG2f49a4538 [2018-11-23 06:40:55,406 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:40:55,407 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/sv-benchmarks/c/recursive/gcd02_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 06:40:55,412 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/data/f892abdc0/3ae8814cc32c4f87b374d9cb925af52f/FLAG2f49a4538 [2018-11-23 06:40:55,424 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/data/f892abdc0/3ae8814cc32c4f87b374d9cb925af52f [2018-11-23 06:40:55,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:40:55,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:40:55,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:40:55,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:40:55,433 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:40:55,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e234a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55, skipping insertion in model container [2018-11-23 06:40:55,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:40:55,461 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:40:55,593 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:40:55,595 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:40:55,605 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:40:55,615 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:40:55,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55 WrapperNode [2018-11-23 06:40:55,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:40:55,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:40:55,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:40:55,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:40:55,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:40:55,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:40:55,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:40:55,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:40:55,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:40:55,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:40:55,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:40:55,650 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:40:55,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/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 [2018-11-23 06:40:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure divides [2018-11-23 06:40:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure divides [2018-11-23 06:40:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2018-11-23 06:40:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2018-11-23 06:40:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:40:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:40:55,916 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:40:55,916 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 06:40:55,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:55 BoogieIcfgContainer [2018-11-23 06:40:55,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:40:55,916 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 06:40:55,917 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 06:40:55,925 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 06:40:55,925 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:55" (1/1) ... [2018-11-23 06:40:55,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:40:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 47 transitions. [2018-11-23 06:40:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-11-23 06:40:55,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 06:40:55,961 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 54 transitions. [2018-11-23 06:40:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2018-11-23 06:40:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 06:40:56,174 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:56,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 62 transitions. [2018-11-23 06:40:56,494 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2018-11-23 06:40:56,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 06:40:56,495 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 45 states and 61 transitions. [2018-11-23 06:40:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2018-11-23 06:40:56,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 06:40:56,602 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 44 states and 60 transitions. [2018-11-23 06:40:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2018-11-23 06:40:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 06:40:56,673 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 52 states and 76 transitions. [2018-11-23 06:40:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2018-11-23 06:40:57,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 06:40:57,042 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 52 states and 75 transitions. [2018-11-23 06:40:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2018-11-23 06:40:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 06:40:57,160 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 57 states and 85 transitions. [2018-11-23 06:40:57,761 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2018-11-23 06:40:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 06:40:57,762 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:57,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 57 states and 84 transitions. [2018-11-23 06:40:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2018-11-23 06:40:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 06:40:57,885 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:57,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 42 states and 59 transitions. [2018-11-23 06:40:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2018-11-23 06:40:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 06:40:58,512 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 41 states and 58 transitions. [2018-11-23 06:40:58,624 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2018-11-23 06:40:58,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 06:40:58,625 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:40:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 74 transitions. [2018-11-23 06:40:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2018-11-23 06:40:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 06:40:59,877 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:40:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:40:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 06:40:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:40:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 74 transitions. [2018-11-23 06:40:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2018-11-23 06:40:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 06:40:59,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:41:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:41:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 06:41:00,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:41:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 43 states and 60 transitions. [2018-11-23 06:41:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2018-11-23 06:41:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 06:41:00,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:41:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:41:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 06:41:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:41:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 32 states and 41 transitions. [2018-11-23 06:41:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-11-23 06:41:01,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:41:01,819 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2018-11-23 06:41:01,825 INFO L775 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2018-11-23 06:41:01,929 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 06:41:01,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 06:41:01 ImpRootNode [2018-11-23 06:41:01,931 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 06:41:01,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:41:01,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:41:01,932 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:41:01,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:55" (3/4) ... [2018-11-23 06:41:01,934 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:41:01,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure divides [2018-11-23 06:41:01,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2018-11-23 06:41:01,942 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 06:41:01,943 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 06:41:01,979 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49e03234-a0c5-4fa6-bb3a-7f5455ca6601/bin-2019/ukojak/witness.graphml [2018-11-23 06:41:01,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:41:01,979 INFO L168 Benchmark]: Toolchain (without parser) took 6551.95 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 353.9 MB). Free memory was 958.2 MB in the beginning and 1.3 GB in the end (delta: -351.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:41:01,981 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:41:01,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:41:01,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.12 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:41:01,982 INFO L168 Benchmark]: Boogie Preprocessor took 12.63 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:41:01,982 INFO L168 Benchmark]: RCFGBuilder took 265.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-23 06:41:01,984 INFO L168 Benchmark]: CodeCheck took 6014.90 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -165.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:41:01,984 INFO L168 Benchmark]: Witness Printer took 47.30 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:41:01,985 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 3 procedures, 43 locations, 6 error locations. SAFE Result, 5.8s OverallTime, 15 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 126796 SDtfs, 152950 SDslu, 2048 SDs, 0 SdLazy, 729366 SolverSat, 154852 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2181 GetRequests, 1917 SyntacticMatches, 82 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12977 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 11217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 20/40 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 40]: 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 21.12 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.63 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 265.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * CodeCheck took 6014.90 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -165.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.30 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...