./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i --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_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/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 fb13e67548d34af589d64a91d36af5946c1dd198 ....................................................................................................................................................................................................................................... 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 15:18:32,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:18:32,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:18:32,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:18:32,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:18:32,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:18:32,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:18:32,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:18:32,675 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:18:32,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:18:32,676 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:18:32,677 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:18:32,677 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:18:32,678 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:18:32,679 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:18:32,679 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:18:32,680 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:18:32,681 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:18:32,682 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:18:32,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:18:32,684 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:18:32,685 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:18:32,687 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:18:32,687 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:18:32,687 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:18:32,688 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:18:32,688 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:18:32,689 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:18:32,689 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:18:32,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:18:32,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:18:32,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:18:32,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:18:32,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:18:32,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:18:32,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:18:32,692 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 15:18:32,703 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:18:32,703 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:18:32,703 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:18:32,704 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:18:32,704 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:18:32,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:18:32,704 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:18:32,704 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:18:32,704 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:18:32,705 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:18:32,706 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:18:32,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:18:32,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:18:32,706 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:18:32,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:18:32,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:18:32,707 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_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/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 -> fb13e67548d34af589d64a91d36af5946c1dd198 [2018-11-18 15:18:32,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:18:32,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:18:32,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:18:32,738 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:18:32,739 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:18:32,739 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/../../sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-18 15:18:32,775 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/data/d3a417db7/3c3c0b9d8b7847f9bc74a6a3207b8ded/FLAGe36ead7d2 [2018-11-18 15:18:33,180 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:18:33,181 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/sv-benchmarks/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-18 15:18:33,186 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/data/d3a417db7/3c3c0b9d8b7847f9bc74a6a3207b8ded/FLAGe36ead7d2 [2018-11-18 15:18:33,198 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/data/d3a417db7/3c3c0b9d8b7847f9bc74a6a3207b8ded [2018-11-18 15:18:33,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:18:33,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:18:33,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:33,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:18:33,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:18:33,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf76dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33, skipping insertion in model container [2018-11-18 15:18:33,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:18:33,228 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:18:33,334 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:33,336 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:18:33,345 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:33,353 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:18:33,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33 WrapperNode [2018-11-18 15:18:33,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:33,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:33,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:18:33,355 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:18:33,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:33,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:18:33,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:18:33,374 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:18:33,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:18:33,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:18:33,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:18:33,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:18:33,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/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 15:18:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:18:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:18:33,553 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:18:33,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:33 BoogieIcfgContainer [2018-11-18 15:18:33,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:18:33,553 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:18:33,553 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:18:33,562 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:18:33,562 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:33" (1/1) ... [2018-11-18 15:18:33,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:18:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2018-11-18 15:18:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2018-11-18 15:18:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 15:18:33,603 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:18:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:33,666 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 15:18:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:18:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-11-18 15:18:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-11-18 15:18:33,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:18:33,671 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:18:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:33,707 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 15:18:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:18:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-11-18 15:18:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-18 15:18:33,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:18:33,726 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:18:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:18:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:18:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-11-18 15:18:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-18 15:18:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:18:34,101 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:18:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:18:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:18:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-11-18 15:18:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-11-18 15:18:34,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:18:34,322 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-11-18 15:18:34,328 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 15:18:34,357 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:18:34,359 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:18:34,359 INFO L579 CodeCheckObserver]: Invariant with dag size 19 [2018-11-18 15:18:34,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:18:34 ImpRootNode [2018-11-18 15:18:34,364 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:18:34,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:18:34,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:18:34,365 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:18:34,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:33" (3/4) ... [2018-11-18 15:18:34,367 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:18:34,375 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 15:18:34,376 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:18:34,376 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:18:34,405 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fd1a5fa7-8636-4a9c-bdb9-a12f50d04494/bin-2019/ukojak/witness.graphml [2018-11-18 15:18:34,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:18:34,405 INFO L168 Benchmark]: Toolchain (without parser) took 1204.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -92.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,406 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-18 15:18:34,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.13 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,407 INFO L168 Benchmark]: Boogie Preprocessor took 10.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:34,407 INFO L168 Benchmark]: RCFGBuilder took 168.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,408 INFO L168 Benchmark]: CodeCheck took 810.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,408 INFO L168 Benchmark]: Witness Printer took 40.33 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:34,410 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, 13 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 104 SDtfs, 44 SDslu, 56 SDs, 0 SdLazy, 168 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 216 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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: 5]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((mid <= 0 && hi < lo + 1) && lo <= hi) || ((hi <= lo + 2 * mid && lo + 2 * mid <= hi) && lo + 2 <= hi) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 152.13 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 168.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 810.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.33 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...