./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/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 fffaea79f968c931abbf923bf574b15b9c605c6a ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 21:13:35,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:13:35,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:13:35,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:13:35,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:13:35,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:13:35,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:13:35,132 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:13:35,132 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:13:35,133 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:13:35,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:13:35,134 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:13:35,134 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:13:35,135 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:13:35,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:13:35,136 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:13:35,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:13:35,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:13:35,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:13:35,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:13:35,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:13:35,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:13:35,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:13:35,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:13:35,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:13:35,142 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:13:35,143 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:13:35,143 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:13:35,144 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:13:35,144 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:13:35,145 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:13:35,145 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:13:35,145 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:13:35,145 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:13:35,146 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:13:35,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:13:35,147 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 21:13:35,154 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:13:35,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:13:35,155 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:13:35,155 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 21:13:35,155 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 21:13:35,155 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 21:13:35,156 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:13:35,156 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:13:35,157 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 21:13:35,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:13:35,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 21:13:35,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:13:35,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:13:35,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:13:35,158 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 21:13:35,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:13:35,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 21:13:35,158 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_8e0e6193-77e6-4831-b7b2-dea8da765bc6/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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2018-12-02 21:13:35,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:13:35,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:13:35,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:13:35,185 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:13:35,185 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:13:35,186 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-12-02 21:13:35,221 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/data/c7e1d19ac/1d4f69361788412880d979f0b9644ae4/FLAGe373b095a [2018-12-02 21:13:35,645 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:13:35,645 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-12-02 21:13:35,649 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/data/c7e1d19ac/1d4f69361788412880d979f0b9644ae4/FLAGe373b095a [2018-12-02 21:13:35,657 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/data/c7e1d19ac/1d4f69361788412880d979f0b9644ae4 [2018-12-02 21:13:35,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:13:35,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:13:35,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:13:35,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:13:35,662 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:13:35,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35, skipping insertion in model container [2018-12-02 21:13:35,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:13:35,677 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:13:35,768 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:13:35,780 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:13:35,790 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:13:35,807 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:13:35,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35 WrapperNode [2018-12-02 21:13:35,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:13:35,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:13:35,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:13:35,808 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:13:35,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:13:35,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:13:35,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:13:35,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:13:35,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... [2018-12-02 21:13:35,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:13:35,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:13:35,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:13:35,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:13:35,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:13:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/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 [2018-12-02 21:13:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 21:13:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 21:13:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:13:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:13:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 21:13:36,016 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:13:36,016 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 21:13:36,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:13:36 BoogieIcfgContainer [2018-12-02 21:13:36,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:13:36,017 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 21:13:36,017 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 21:13:36,023 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 21:13:36,024 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:13:36" (1/1) ... [2018-12-02 21:13:36,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:13:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 21:13:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2018-12-02 21:13:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2018-12-02 21:13:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 21:13:36,054 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 21:13:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:13:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:13:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 21:13:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-02 21:13:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-02 21:13:36,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 21:13:36,128 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 21:13:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:13:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:13:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 21:13:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-12-02 21:13:36,247 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-12-02 21:13:36,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 21:13:36,247 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 21:13:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:13:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:13:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 21:13:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-02 21:13:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-02 21:13:36,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 21:13:36,443 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-12-02 21:13:36,449 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-02 21:13:36,467 INFO L583 CodeCheckObserver]: Invariant with dag size 19 [2018-12-02 21:13:36,470 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,470 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,473 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,473 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,474 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 21:13:36,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:13:36 ImpRootNode [2018-12-02 21:13:36,474 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 21:13:36,474 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 21:13:36,474 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 21:13:36,474 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 21:13:36,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:13:36" (3/4) ... [2018-12-02 21:13:36,477 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 21:13:36,482 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 21:13:36,482 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 21:13:36,482 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 21:13:36,509 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8e0e6193-77e6-4831-b7b2-dea8da765bc6/bin-2019/ukojak/witness.graphml [2018-12-02 21:13:36,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 21:13:36,509 INFO L168 Benchmark]: Toolchain (without parser) took 850.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 962.0 MB in the beginning and 1.0 GB in the end (delta: -79.1 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,510 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:13:36,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.41 ms. Allocated memory is still 1.0 GB. Free memory was 962.0 MB in the beginning and 950.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,511 INFO L168 Benchmark]: Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:13:36,511 INFO L168 Benchmark]: RCFGBuilder took 141.92 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,511 INFO L168 Benchmark]: CodeCheck took 457.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,511 INFO L168 Benchmark]: Witness Printer took 34.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-02 21:13:36,513 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, 14 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 18 SDslu, 8 SDs, 0 SdLazy, 120 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 18]: Loop Invariant [2018-12-02 21:13:36,514 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,514 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,514 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 21:13:36,515 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (k == i || unknown-#memory_int-unknown[y][y + k] == 0) && 0 == unknown-#memory_int-unknown[x][x + i] - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.41 ms. Allocated memory is still 1.0 GB. Free memory was 962.0 MB in the beginning and 950.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 141.92 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * CodeCheck took 457.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. * Witness Printer took 34.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int RESULT: Ultimate proved your program to be correct! Received shutdown request...