./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/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 0497b69437c9ebb889888bdb31aaefcc8eaad029 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:26:23,579 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:26:23,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:26:23,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:26:23,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:26:23,591 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:26:23,592 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:26:23,593 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:26:23,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:26:23,596 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:26:23,597 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:26:23,597 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:26:23,598 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:26:23,599 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:26:23,600 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:26:23,601 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:26:23,602 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:26:23,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:26:23,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:26:23,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:26:23,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:26:23,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:26:23,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:26:23,613 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:26:23,613 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:26:23,614 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:26:23,615 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:26:23,616 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:26:23,617 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:26:23,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:26:23,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:26:23,620 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:26:23,620 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:26:23,620 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:26:23,621 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:26:23,622 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:26:23,622 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-10 06:26:23,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:26:23,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:26:23,633 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:26:23,634 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 06:26:23,634 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:26:23,634 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:26:23,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:26:23,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:26:23,635 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:26:23,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:26:23,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:26:23,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:26:23,636 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:26:23,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:26:23,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:26:23,636 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 06:26:23,637 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:26:23,637 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:26:23,637 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:26:23,637 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 06:26:23,637 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 06:26:23,638 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:26:23,638 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:26:23,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 06:26:23,638 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:26:23,638 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:26:23,639 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:26:23,639 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 06:26:23,639 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:26:23,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:26:23,639 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_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/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 -> 0497b69437c9ebb889888bdb31aaefcc8eaad029 [2018-11-10 06:26:23,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:26:23,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:26:23,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:26:23,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:26:23,681 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:26:23,681 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 06:26:23,727 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/data/902c5b416/2f19499f1f7d4d378cce20b3cb2b3f0f/FLAG217637896 [2018-11-10 06:26:24,092 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:26:24,092 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 06:26:24,098 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/data/902c5b416/2f19499f1f7d4d378cce20b3cb2b3f0f/FLAG217637896 [2018-11-10 06:26:24,112 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/data/902c5b416/2f19499f1f7d4d378cce20b3cb2b3f0f [2018-11-10 06:26:24,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:26:24,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:26:24,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:26:24,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:26:24,122 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:26:24,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24, skipping insertion in model container [2018-11-10 06:26:24,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:26:24,146 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:26:24,274 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:26:24,277 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:26:24,290 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:26:24,301 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:26:24,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24 WrapperNode [2018-11-10 06:26:24,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:26:24,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:26:24,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:26:24,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:26:24,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:26:24,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:26:24,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:26:24,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:26:24,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:26:24,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:26:24,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:26:24,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:26:24,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/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 [2018-11-10 06:26:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:26:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:26:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2018-11-10 06:26:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2018-11-10 06:26:24,672 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:26:24,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:26:24 BoogieIcfgContainer [2018-11-10 06:26:24,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:26:24,674 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 06:26:24,674 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 06:26:24,686 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 06:26:24,687 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:26:24" (1/1) ... [2018-11-10 06:26:24,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:26:24,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2018-11-10 06:26:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-10 06:26:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 06:26:24,756 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 40 transitions. [2018-11-10 06:26:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-11-10 06:26:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 06:26:25,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 50 transitions. [2018-11-10 06:26:25,666 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2018-11-10 06:26:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 06:26:25,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 49 transitions. [2018-11-10 06:26:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2018-11-10 06:26:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 06:26:25,815 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:25,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 48 transitions. [2018-11-10 06:26:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-11-10 06:26:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:26:25,902 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 47 transitions. [2018-11-10 06:26:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2018-11-10 06:26:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:26:26,049 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:26,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 57 transitions. [2018-11-10 06:26:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2018-11-10 06:26:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:26:26,657 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 56 transitions. [2018-11-10 06:26:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2018-11-10 06:26:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:26:26,834 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:26,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 55 transitions. [2018-11-10 06:26:27,044 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2018-11-10 06:26:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:26:27,045 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:26:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:26:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:26:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:26:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 27 transitions. [2018-11-10 06:26:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2018-11-10 06:26:27,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:26:27,512 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-11-10 06:26:27,521 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-10 06:26:27,581 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 06:26:27,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 06:26:27 ImpRootNode [2018-11-10 06:26:27,583 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 06:26:27,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:26:27,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:26:27,584 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:26:27,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:26:24" (3/4) ... [2018-11-10 06:26:27,588 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:26:27,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2018-11-10 06:26:27,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 06:26:27,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 06:26:27,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 06:26:27,637 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bfd8d9bc-e726-480a-8d32-5b17bbbdf9e6/bin-2019/ukojak/witness.graphml [2018-11-10 06:26:27,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:26:27,638 INFO L168 Benchmark]: Toolchain (without parser) took 3522.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -95.2 MB). Peak memory consumption was 133.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,639 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:26:27,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.95 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:26:27,640 INFO L168 Benchmark]: Boogie Preprocessor took 18.73 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,641 INFO L168 Benchmark]: RCFGBuilder took 318.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -206.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,641 INFO L168 Benchmark]: CodeCheck took 2909.69 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 58.7 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 92.9 MB). Peak memory consumption was 151.6 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,641 INFO L168 Benchmark]: Witness Printer took 53.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:26:27,645 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 2 procedures, 29 locations, 4 error locations. SAFE Result, 2.7s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2676 SDtfs, 3740 SDslu, 512 SDs, 0 SdLazy, 20670 SolverSat, 5442 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1007 GetRequests, 883 SyntacticMatches, 34 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2766 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 3979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 15/23 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 33.95 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.73 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -206.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * CodeCheck took 2909.69 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 58.7 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 92.9 MB). Peak memory consumption was 151.6 MB. Max. memory is 11.5 GB. * Witness Printer took 53.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...