./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.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_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/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 8d39666f7b9e3c393826226f879477647e7209cc ........................................................................................................................................................................................................................................ 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 03:53:01,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:53:01,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:53:01,732 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:53:01,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:53:01,733 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:53:01,734 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:53:01,735 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:53:01,735 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:53:01,736 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:53:01,737 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:53:01,737 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:53:01,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:53:01,738 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:53:01,739 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:53:01,740 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:53:01,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:53:01,742 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:53:01,744 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:53:01,745 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:53:01,746 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:53:01,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:53:01,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:53:01,750 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:53:01,750 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:53:01,751 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:53:01,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:53:01,752 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:53:01,752 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:53:01,753 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:53:01,753 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:53:01,753 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:53:01,753 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:53:01,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:53:01,754 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:53:01,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:53:01,755 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-10 03:53:01,763 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:53:01,763 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:53:01,764 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:53:01,764 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:53:01,765 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:53:01,765 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:53:01,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:53:01,765 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:53:01,765 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:53:01,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:53:01,766 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:53:01,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:53:01,768 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 03:53:01,768 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 03:53:01,768 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:53:01,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:53:01,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 03:53:01,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:53:01,769 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:53:01,769 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:53:01,769 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 03:53:01,769 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:53:01,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:53:01,769 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_85df4932-8215-40f8-a189-6587cb1dcc36/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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2018-11-10 03:53:01,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:53:01,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:53:01,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:53:01,807 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:53:01,808 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:53:01,808 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-10 03:53:01,852 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/data/c548532d7/ac2a295a15764392aa7a2ed8b23df900/FLAG72f2b1cdc [2018-11-10 03:53:02,250 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:53:02,250 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-10 03:53:02,255 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/data/c548532d7/ac2a295a15764392aa7a2ed8b23df900/FLAG72f2b1cdc [2018-11-10 03:53:02,265 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/data/c548532d7/ac2a295a15764392aa7a2ed8b23df900 [2018-11-10 03:53:02,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:53:02,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:53:02,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:53:02,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:53:02,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:53:02,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4541c043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02, skipping insertion in model container [2018-11-10 03:53:02,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:53:02,291 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:53:02,388 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:53:02,390 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:53:02,400 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:53:02,408 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:53:02,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02 WrapperNode [2018-11-10 03:53:02,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:53:02,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:53:02,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:53:02,409 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:53:02,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:53:02,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:53:02,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:53:02,426 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:53:02,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:53:02,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:53:02,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:53:02,435 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:53:02,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:53:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/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 03:53:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:53:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:53:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-10 03:53:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-10 03:53:02,621 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:53:02,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:53:02 BoogieIcfgContainer [2018-11-10 03:53:02,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:53:02,622 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 03:53:02,622 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 03:53:02,632 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 03:53:02,632 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:53:02" (1/1) ... [2018-11-10 03:53:02,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:53:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2018-11-10 03:53:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-10 03:53:02,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 03:53:02,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:53:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:53:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 03:53:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-11-10 03:53:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-10 03:53:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 03:53:02,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:53:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:53:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 03:53:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-11-10 03:53:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 03:53:02,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 03:53:02,872 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:53:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:53:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 03:53:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2018-11-10 03:53:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-10 03:53:03,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 03:53:03,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:53:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:53:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 03:53:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-11-10 03:53:03,205 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-11-10 03:53:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 03:53:03,206 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:53:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:53:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 03:53:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:53:03,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-11-10 03:53:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-11-10 03:53:03,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:53:03,391 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2018-11-10 03:53:03,398 INFO L778 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-11-10 03:53:03,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 03:53:03 ImpRootNode [2018-11-10 03:53:03,449 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 03:53:03,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:53:03,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:53:03,450 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:53:03,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:53:02" (3/4) ... [2018-11-10 03:53:03,453 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 03:53:03,457 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-10 03:53:03,461 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-10 03:53:03,461 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 03:53:03,461 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 03:53:03,491 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_85df4932-8215-40f8-a189-6587cb1dcc36/bin-2019/ukojak/witness.graphml [2018-11-10 03:53:03,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:53:03,492 INFO L168 Benchmark]: Toolchain (without parser) took 1224.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -40.7 MB). Peak memory consumption was 86.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,493 INFO L168 Benchmark]: CDTParser took 0.15 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 03:53:03,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.33 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.21 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:53:03,494 INFO L168 Benchmark]: Boogie Preprocessor took 8.93 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,494 INFO L168 Benchmark]: RCFGBuilder took 187.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,494 INFO L168 Benchmark]: CodeCheck took 826.73 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: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,495 INFO L168 Benchmark]: Witness Printer took 41.95 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:53:03,497 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, 20 locations, 2 error locations. SAFE Result, 0.7s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 152 SDslu, 72 SDs, 0 SdLazy, 482 SolverSat, 158 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 505 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 51/68 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: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 139.33 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.21 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 8.93 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 826.73 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: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. * Witness Printer took 41.95 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...