./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.p+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.p+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/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 7790858330d8d9c65e097c00c8669b9df5f9c726 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:51:09,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:09,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:09,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:09,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:09,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:09,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:09,641 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:09,642 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:09,643 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:09,644 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:09,644 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:09,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:09,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:09,646 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:09,646 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:09,647 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:09,648 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:09,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:09,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:09,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:09,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:09,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:09,654 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:09,654 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:09,655 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:09,655 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:09,656 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:09,656 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:09,657 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:09,657 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:09,658 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:09,658 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:09,658 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:09,659 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:09,659 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:09,659 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 15:51:09,669 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:09,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:09,670 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:09,670 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:51:09,671 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:09,671 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:09,671 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:09,671 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:09,671 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:09,671 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:09,672 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:09,673 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:51:09,673 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:51:09,673 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:09,673 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:09,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:51:09,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:09,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:09,674 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:09,674 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:51:09,674 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:09,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:09,674 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_ccec3894-90ec-4e88-a855-839e320a9a40/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 -> 7790858330d8d9c65e097c00c8669b9df5f9c726 [2018-11-18 15:51:09,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:09,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:09,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:09,711 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:09,711 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:09,712 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.p+nlh-reducer.c [2018-11-18 15:51:09,754 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/data/cdf8b6685/8ef58c2d83ff4181997282e91170ec33/FLAG7dea12108 [2018-11-18 15:51:10,113 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:10,114 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.p+nlh-reducer.c [2018-11-18 15:51:10,125 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/data/cdf8b6685/8ef58c2d83ff4181997282e91170ec33/FLAG7dea12108 [2018-11-18 15:51:10,136 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/data/cdf8b6685/8ef58c2d83ff4181997282e91170ec33 [2018-11-18 15:51:10,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:10,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:51:10,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:10,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:10,142 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:10,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399b9200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10, skipping insertion in model container [2018-11-18 15:51:10,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:10,197 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:10,512 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:10,516 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:10,668 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:10,732 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:10,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10 WrapperNode [2018-11-18 15:51:10,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:10,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:10,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:51:10,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:51:10,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:10,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:10,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:10,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:10,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... [2018-11-18 15:51:10,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:10,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:10,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:10,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:10,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/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 [2018-11-18 15:51:10,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:11,756 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:11,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:11 BoogieIcfgContainer [2018-11-18 15:51:11,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:11,757 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:51:11,757 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:51:11,766 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:51:11,766 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:11" (1/1) ... [2018-11-18 15:51:11,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 249 states and 484 transitions. [2018-11-18 15:51:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 484 transitions. [2018-11-18 15:51:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 15:51:11,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 251 states and 484 transitions. [2018-11-18 15:51:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 484 transitions. [2018-11-18 15:51:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 15:51:12,390 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 254 states and 487 transitions. [2018-11-18 15:51:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 487 transitions. [2018-11-18 15:51:12,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-18 15:51:12,615 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 256 states and 489 transitions. [2018-11-18 15:51:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 489 transitions. [2018-11-18 15:51:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 15:51:12,962 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 259 states and 494 transitions. [2018-11-18 15:51:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 494 transitions. [2018-11-18 15:51:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 15:51:13,335 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:51:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 258 states and 492 transitions. [2018-11-18 15:51:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 492 transitions. [2018-11-18 15:51:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-18 15:51:13,512 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 259 states and 495 transitions. [2018-11-18 15:51:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 495 transitions. [2018-11-18 15:51:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-18 15:51:13,712 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:51:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:51:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:51:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 245 states and 477 transitions. [2018-11-18 15:51:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 477 transitions. [2018-11-18 15:51:13,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:51:13,946 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-11-18 15:51:13,955 INFO L775 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-11-18 15:51:14,319 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,322 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,322 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,322 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,323 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,323 INFO L579 CodeCheckObserver]: Invariant with dag size 8 [2018-11-18 15:51:14,329 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,329 INFO L579 CodeCheckObserver]: Invariant with dag size 8 [2018-11-18 15:51:14,329 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,329 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:51:14,330 INFO L579 CodeCheckObserver]: Invariant with dag size 8 [2018-11-18 15:51:14,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:51:14 ImpRootNode [2018-11-18 15:51:14,330 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:51:14,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:14,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:14,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:14,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:11" (3/4) ... [2018-11-18 15:51:14,341 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:51:14,360 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 15:51:14,361 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:51:14,362 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:51:14,532 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ccec3894-90ec-4e88-a855-839e320a9a40/bin-2019/ukojak/witness.graphml [2018-11-18 15:51:14,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:14,532 INFO L168 Benchmark]: Toolchain (without parser) took 4394.00 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -210.6 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,534 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:14,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -254.5 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,534 INFO L168 Benchmark]: Boogie Preprocessor took 44.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,535 INFO L168 Benchmark]: RCFGBuilder took 931.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 159.3 MB). Peak memory consumption was 159.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,535 INFO L168 Benchmark]: CodeCheck took 2572.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 112.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -161.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:14,535 INFO L168 Benchmark]: Witness Printer took 201.38 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,537 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, 251 locations, 2 error locations. SAFE Result, 2.1s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28448 SDtfs, 13442 SDslu, 5888 SDs, 0 SdLazy, 20114 SolverSat, 1240 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7925 GetRequests, 7757 SyntacticMatches, 122 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 979 NumberOfCodeBlocks, 979 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 972 ConstructedInterpolants, 0 QuantifiedInterpolants, 293456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 4/6 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: 1775]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1758]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1537]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1737]: Loop Invariant Derived loop invariant: main__i + 1 <= main__nlen && 0 < main__i + 1 - InvariantResult [Line: 1098]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1762]: Loop Invariant Derived loop invariant: main__i + 1 <= main__nlen && 0 < main__i + 1 - InvariantResult [Line: 1296]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 659]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1749]: Loop Invariant Derived loop invariant: main__i + 1 <= main__nlen && 0 < main__i + 1 * 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 593.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -254.5 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 931.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 159.3 MB). Peak memory consumption was 159.3 MB. Max. memory is 11.5 GB. * CodeCheck took 2572.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 112.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -161.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 201.38 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...