./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887ada769b510ae5d273618525924110908f2b5f ................................................................................................................................................................................................................................................. 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 07:54:04,620 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:54:04,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:54:04,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:54:04,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:54:04,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:54:04,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:54:04,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:54:04,632 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:54:04,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:54:04,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:54:04,633 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:54:04,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:54:04,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:54:04,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:54:04,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:54:04,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:54:04,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:54:04,639 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:54:04,640 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:54:04,641 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:54:04,642 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:54:04,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:54:04,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:54:04,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:54:04,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:54:04,645 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:54:04,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:54:04,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:54:04,647 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:54:04,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:54:04,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:54:04,648 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:54:04,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:54:04,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:54:04,649 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:54:04,650 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 07:54:04,658 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:54:04,658 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:54:04,658 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:54:04,659 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:54:04,659 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:54:04,659 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:54:04,659 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:54:04,659 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:54:04,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:54:04,661 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:54:04,661 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:54:04,661 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 07:54:04,661 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 07:54:04,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:54:04,661 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:54:04,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:54:04,661 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:54:04,662 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:54:04,662 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:54:04,662 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 07:54:04,662 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:54:04,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:54:04,662 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_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/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 ! call(__VERIFIER_error())) ) 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 -> 887ada769b510ae5d273618525924110908f2b5f [2018-11-10 07:54:04,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:54:04,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:54:04,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:54:04,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:54:04,702 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:54:04,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/../../sv-benchmarks/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 07:54:04,741 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/data/e49f5c380/2f72b6c17414424da232dcd0ed8f0abb/FLAGf5f425864 [2018-11-10 07:54:05,133 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:54:05,134 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/sv-benchmarks/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 07:54:05,137 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/data/e49f5c380/2f72b6c17414424da232dcd0ed8f0abb/FLAGf5f425864 [2018-11-10 07:54:05,146 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/data/e49f5c380/2f72b6c17414424da232dcd0ed8f0abb [2018-11-10 07:54:05,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:54:05,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:54:05,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:54:05,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:54:05,152 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:54:05,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4104a14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05, skipping insertion in model container [2018-11-10 07:54:05,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:54:05,171 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:54:05,261 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:54:05,263 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:54:05,272 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:54:05,279 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:54:05,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05 WrapperNode [2018-11-10 07:54:05,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:54:05,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:54:05,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:54:05,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:54:05,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:54:05,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:54:05,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:54:05,299 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:54:05,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:54:05,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:54:05,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:54:05,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:54:05,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:54:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/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 07:54:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2018-11-10 07:54:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2018-11-10 07:54:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:54:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:54:05,494 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:54:05,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:54:05 BoogieIcfgContainer [2018-11-10 07:54:05,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:54:05,495 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 07:54:05,495 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 07:54:05,506 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 07:54:05,506 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:54:05" (1/1) ... [2018-11-10 07:54:05,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:54:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-11-10 07:54:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-11-10 07:54:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:54:05,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:05,696 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 07:54:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-11-10 07:54:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 07:54:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 07:54:05,804 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:54:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 30 transitions. [2018-11-10 07:54:06,153 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-11-10 07:54:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:54:06,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:54:06,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 25 states and 39 transitions. [2018-11-10 07:54:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2018-11-10 07:54:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 07:54:06,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 07:54:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:07,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 28 states and 49 transitions. [2018-11-10 07:54:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 49 transitions. [2018-11-10 07:54:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 07:54:07,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:07,802 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 07:54:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 31 states and 60 transitions. [2018-11-10 07:54:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 60 transitions. [2018-11-10 07:54:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 07:54:08,473 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:54:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:54:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-10 07:54:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:54:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 13 states and 15 transitions. [2018-11-10 07:54:10,306 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-10 07:54:10,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:54:10,306 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2018-11-10 07:54:10,312 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-10 07:54:10,330 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:54:10,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 07:54:10 ImpRootNode [2018-11-10 07:54:10,332 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 07:54:10,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:54:10,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:54:10,333 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:54:10,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:54:05" (3/4) ... [2018-11-10 07:54:10,335 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:54:10,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2018-11-10 07:54:10,343 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 07:54:10,344 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:54:10,344 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 07:54:10,371 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3d5027b-89db-4d3e-8af2-ffb7a8ed5d41/bin-2019/ukojak/witness.graphml [2018-11-10 07:54:10,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:54:10,372 INFO L168 Benchmark]: Toolchain (without parser) took 5223.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -121.6 MB). Peak memory consumption was 55.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,373 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:54:10,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:54:10,374 INFO L168 Benchmark]: Boogie Preprocessor took 10.28 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,375 INFO L168 Benchmark]: RCFGBuilder took 185.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,375 INFO L168 Benchmark]: CodeCheck took 4837.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,376 INFO L168 Benchmark]: Witness Printer took 38.91 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: 657.1 kB). Peak memory consumption was 657.1 kB. Max. memory is 11.5 GB. [2018-11-10 07:54:10,378 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, 17 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 388 SDtfs, 256 SDslu, 320 SDs, 0 SdLazy, 2656 SolverSat, 684 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1496 GetRequests, 1282 SyntacticMatches, 70 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7363 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 13530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 130/180 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: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.28 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 4837.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. * Witness Printer took 38.91 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: 657.1 kB). Peak memory consumption was 657.1 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...