./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/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 934ee9c856a834ce808d29dea79c6912619f897f ............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:11:46,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:11:46,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:11:46,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:11:46,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:11:46,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:11:46,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:11:46,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:11:46,829 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:11:46,830 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:11:46,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:11:46,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:11:46,831 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:11:46,832 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:11:46,832 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:11:46,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:11:46,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:11:46,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:11:46,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:11:46,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:11:46,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:11:46,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:11:46,838 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:11:46,838 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:11:46,838 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:11:46,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:11:46,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:11:46,840 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:11:46,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:11:46,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:11:46,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:11:46,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:11:46,842 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:11:46,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:11:46,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:11:46,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:11:46,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 08:11:46,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:11:46,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:11:46,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:11:46,853 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 08:11:46,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:11:46,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:11:46,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:11:46,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:11:46,855 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 08:11:46,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 08:11:46,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:11:46,856 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 08:11:46,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:11:46,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:11:46,857 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_2d17d0e9-a226-4860-aaf0-b9841687fa99/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 -> 934ee9c856a834ce808d29dea79c6912619f897f [2018-11-23 08:11:46,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:11:46,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:11:46,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:11:46,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:11:46,895 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:11:46,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-11-23 08:11:46,942 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/data/bc4177483/d6b0f6baa0a74a2c96556aa1a5e3806f/FLAGb1b5beb71 [2018-11-23 08:11:47,267 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:11:47,267 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-11-23 08:11:47,271 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/data/bc4177483/d6b0f6baa0a74a2c96556aa1a5e3806f/FLAGb1b5beb71 [2018-11-23 08:11:47,697 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/data/bc4177483/d6b0f6baa0a74a2c96556aa1a5e3806f [2018-11-23 08:11:47,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:11:47,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:11:47,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:11:47,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:11:47,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:11:47,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c78306b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47, skipping insertion in model container [2018-11-23 08:11:47,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:11:47,727 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:11:47,831 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:11:47,833 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:11:47,845 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:11:47,853 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:11:47,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47 WrapperNode [2018-11-23 08:11:47,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:11:47,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:11:47,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:11:47,854 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:11:47,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:11:47,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:11:47,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:11:47,874 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:11:47,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... [2018-11-23 08:11:47,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:11:47,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:11:47,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:11:47,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:11:47,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/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 [2018-11-23 08:11:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:11:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:11:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 08:11:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 08:11:48,109 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:11:48,110 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 08:11:48,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48 BoogieIcfgContainer [2018-11-23 08:11:48,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:11:48,110 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 08:11:48,110 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 08:11:48,117 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 08:11:48,117 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48" (1/1) ... [2018-11-23 08:11:48,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:11:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2018-11-23 08:11:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2018-11-23 08:11:48,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 08:11:48,151 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2018-11-23 08:11:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2018-11-23 08:11:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 08:11:48,358 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:48,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:48,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 51 transitions. [2018-11-23 08:11:48,540 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2018-11-23 08:11:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 08:11:48,541 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2018-11-23 08:11:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2018-11-23 08:11:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 08:11:48,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:49,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2018-11-23 08:11:49,036 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2018-11-23 08:11:49,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 08:11:49,037 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:49,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-11-23 08:11:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-11-23 08:11:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 08:11:49,376 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:11:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 40 states and 68 transitions. [2018-11-23 08:11:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2018-11-23 08:11:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 08:11:49,473 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 08:11:49,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 35 states and 57 transitions. [2018-11-23 08:11:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2018-11-23 08:11:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 08:11:49,501 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 08:11:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 36 states and 62 transitions. [2018-11-23 08:11:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions. [2018-11-23 08:11:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 08:11:49,892 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 08:11:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 31 states and 46 transitions. [2018-11-23 08:11:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2018-11-23 08:11:49,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 08:11:49,976 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 08:11:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:11:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 08:11:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 08:11:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 22 states and 32 transitions. [2018-11-23 08:11:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-11-23 08:11:50,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:11:50,173 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-23 08:11:50,179 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 08:11:50,230 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 08:11:50,232 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 08:11:50,232 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 08:11:50,232 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 08:11:50,233 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 08:11:50,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:11:50 ImpRootNode [2018-11-23 08:11:50,233 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 08:11:50,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:11:50,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:11:50,233 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:11:50,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:48" (3/4) ... [2018-11-23 08:11:50,236 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:11:50,240 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 08:11:50,242 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 08:11:50,242 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 08:11:50,276 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2d17d0e9-a226-4860-aaf0-b9841687fa99/bin-2019/ukojak/witness.graphml [2018-11-23 08:11:50,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:11:50,277 INFO L168 Benchmark]: Toolchain (without parser) took 2576.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 961.9 MB in the beginning and 931.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 166.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,277 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:11:50,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,278 INFO L168 Benchmark]: Boogie Preprocessor took 14.01 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. [2018-11-23 08:11:50,279 INFO L168 Benchmark]: RCFGBuilder took 221.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,279 INFO L168 Benchmark]: CodeCheck took 2122.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.2 MB in the end (delta: 176.8 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,279 INFO L168 Benchmark]: Witness Printer took 42.73 ms. Allocated memory is still 1.2 GB. Free memory was 936.2 MB in the beginning and 931.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-23 08:11:50,281 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, 24 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9216 SDtfs, 9394 SDslu, 5388 SDs, 0 SdLazy, 44942 SolverSat, 12380 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1661 GetRequests, 1552 SyntacticMatches, 35 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 9132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 31/51 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 20.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.01 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 221.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * CodeCheck took 2122.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.2 MB in the end (delta: 176.8 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.73 ms. Allocated memory is still 1.2 GB. Free memory was 936.2 MB in the beginning and 931.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...