./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/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 d5d419a3a7f083f15010050e5cf28b10f30a132d .............................................................................................................................................................................................................................................. 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 14:59:58,450 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:59:58,451 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:59:58,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:59:58,457 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:59:58,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:59:58,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:59:58,459 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:59:58,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:59:58,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:59:58,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:59:58,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:59:58,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:59:58,462 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:59:58,463 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:59:58,464 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:59:58,464 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:59:58,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:59:58,466 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:59:58,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:59:58,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:59:58,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:59:58,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:59:58,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:59:58,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:59:58,470 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:59:58,471 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:59:58,471 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:59:58,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:59:58,472 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:59:58,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:59:58,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:59:58,473 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:59:58,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:59:58,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:59:58,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:59:58,474 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-12-02 14:59:58,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:59:58,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:59:58,483 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:59:58,483 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 14:59:58,483 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 14:59:58,484 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:59:58,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:59:58,485 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 14:59:58,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:59:58,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 14:59:58,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:59:58,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:59:58,486 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_79f51ad2-f489-4d01-90f3-a7450068dda0/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 -> d5d419a3a7f083f15010050e5cf28b10f30a132d [2018-12-02 14:59:58,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:59:58,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:59:58,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:59:58,513 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:59:58,513 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:59:58,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-12-02 14:59:58,548 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/data/65cf46648/c236ad122e6e4d9cb5c61a0a6c889ce5/FLAG922bee813 [2018-12-02 14:59:58,990 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:59:58,991 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-12-02 14:59:58,994 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/data/65cf46648/c236ad122e6e4d9cb5c61a0a6c889ce5/FLAG922bee813 [2018-12-02 14:59:59,002 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/data/65cf46648/c236ad122e6e4d9cb5c61a0a6c889ce5 [2018-12-02 14:59:59,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:59:59,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:59:59,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:59:59,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:59:59,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:59:59,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59, skipping insertion in model container [2018-12-02 14:59:59,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:59:59,024 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:59:59,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:59:59,109 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:59:59,119 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:59:59,127 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:59:59,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59 WrapperNode [2018-12-02 14:59:59,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:59:59,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:59:59,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:59:59,128 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:59:59,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:59:59,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:59:59,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:59:59,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:59:59,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:59:59,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:59:59,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:59:59,191 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:59:59,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:59:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/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 14:59:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:59:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:59:59,372 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:59:59,372 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-02 14:59:59,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:59:59 BoogieIcfgContainer [2018-12-02 14:59:59,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:59:59,373 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 14:59:59,373 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 14:59:59,379 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 14:59:59,380 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:59:59" (1/1) ... [2018-12-02 14:59:59,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:59:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:59:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-02 14:59:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-02 14:59:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 14:59:59,410 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:59:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:59:59,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:59:59,504 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 14:59:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:59:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-12-02 14:59:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-12-02 14:59:59,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 14:59:59,544 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:59:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:59:59,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:59:59,560 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 14:59:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:59:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-12-02 14:59:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-12-02 14:59:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 14:59:59,597 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:59:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:59:59,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:59:59,613 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 14:59:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:59:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2018-12-02 14:59:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-12-02 14:59:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 14:59:59,664 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:59:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:59:59,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:59:59,673 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 14:59:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:59:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-12-02 14:59:59,765 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-02 14:59:59,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 14:59:59,765 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-12-02 14:59:59,771 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-02 14:59:59,784 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 14:59:59,786 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 14:59:59,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 02:59:59 ImpRootNode [2018-12-02 14:59:59,786 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 14:59:59,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:59:59,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:59:59,786 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:59:59,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:59:59" (3/4) ... [2018-12-02 14:59:59,789 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 14:59:59,795 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-02 14:59:59,795 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 14:59:59,795 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 14:59:59,822 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_79f51ad2-f489-4d01-90f3-a7450068dda0/bin-2019/ukojak/witness.graphml [2018-12-02 14:59:59,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:59:59,823 INFO L168 Benchmark]: Toolchain (without parser) took 818.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -55.5 MB). Peak memory consumption was 66.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,824 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:59:59,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.84 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.92 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:59:59,824 INFO L168 Benchmark]: Boogie Preprocessor took 40.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,825 INFO L168 Benchmark]: RCFGBuilder took 181.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,825 INFO L168 Benchmark]: CodeCheck took 413.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,825 INFO L168 Benchmark]: Witness Printer took 36.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:59:59,827 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, 21 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 268 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 8 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.84 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 21.92 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * CodeCheck took 413.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * Witness Printer took 36.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...