./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label09_true-unreach-call.c --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_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label09_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/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 bd67834e8971a579ed0a849416006fd592ec6188 .................................................................................................................................................................................................................................................................................. 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 03:40:31,172 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:40:31,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:40:31,182 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:40:31,183 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:40:31,183 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:40:31,184 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:40:31,186 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:40:31,187 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:40:31,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:40:31,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:40:31,189 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:40:31,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:40:31,190 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:40:31,191 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:40:31,192 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:40:31,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:40:31,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:40:31,195 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:40:31,198 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:40:31,199 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:40:31,200 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:40:31,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:40:31,202 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:40:31,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:40:31,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:40:31,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:40:31,206 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:40:31,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:40:31,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:40:31,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:40:31,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:40:31,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:40:31,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:40:31,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:40:31,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:40:31,211 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 03:40:31,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:40:31,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:40:31,223 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:40:31,223 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 03:40:31,224 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:40:31,224 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:40:31,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:40:31,224 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:40:31,225 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:40:31,226 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:40:31,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:40:31,226 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:40:31,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:40:31,226 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 03:40:31,226 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 03:40:31,227 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:40:31,227 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:40:31,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 03:40:31,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:40:31,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:40:31,228 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:40:31,228 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 03:40:31,228 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:40:31,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:40:31,228 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_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/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 -> bd67834e8971a579ed0a849416006fd592ec6188 [2018-11-23 03:40:31,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:40:31,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:40:31,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:40:31,272 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:40:31,272 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:40:31,272 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-11-23 03:40:31,327 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/data/109092862/341840657f5741b486d1ad1eb2c7e6c1/FLAG24aba2f99 [2018-11-23 03:40:31,728 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:40:31,728 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/sv-benchmarks/c/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-11-23 03:40:31,739 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/data/109092862/341840657f5741b486d1ad1eb2c7e6c1/FLAG24aba2f99 [2018-11-23 03:40:32,097 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/data/109092862/341840657f5741b486d1ad1eb2c7e6c1 [2018-11-23 03:40:32,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:40:32,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:40:32,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:40:32,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:40:32,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:40:32,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9255568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32, skipping insertion in model container [2018-11-23 03:40:32,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:40:32,154 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:40:32,405 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:40:32,408 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:40:32,489 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:40:32,504 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:40:32,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32 WrapperNode [2018-11-23 03:40:32,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:40:32,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:40:32,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:40:32,506 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:40:32,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:40:32,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:40:32,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:40:32,637 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:40:32,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... [2018-11-23 03:40:32,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:40:32,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:40:32,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:40:32,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:40:32,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/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 03:40:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 03:40:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:40:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:41:39,732 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:41:39,732 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 03:41:39,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:39 BoogieIcfgContainer [2018-11-23 03:41:39,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:41:39,733 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 03:41:39,733 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 03:41:39,744 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 03:41:39,744 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:39" (1/1) ... [2018-11-23 03:41:39,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-23 03:41:39,796 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-23 03:41:39,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 03:41:39,799 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:39,990 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 03:41:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-23 03:41:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-23 03:41:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 03:41:40,054 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:40,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2018-11-23 03:41:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2018-11-23 03:41:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:41:40,728 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 47 transitions. [2018-11-23 03:41:41,598 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2018-11-23 03:41:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:41:41,598 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2018-11-23 03:41:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2018-11-23 03:41:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:41:41,937 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-11-23 03:41:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-11-23 03:41:42,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 03:41:42,394 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:42,984 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 03:41:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 40 states and 79 transitions. [2018-11-23 03:41:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 79 transitions. [2018-11-23 03:41:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 03:41:44,343 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 03:41:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 85 transitions. [2018-11-23 03:41:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 85 transitions. [2018-11-23 03:41:48,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:41:48,211 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 03:41:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 55 states and 105 transitions. [2018-11-23 03:41:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 105 transitions. [2018-11-23 03:41:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:41:50,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 03:41:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 58 states and 110 transitions. [2018-11-23 03:41:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2018-11-23 03:41:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:41:51,282 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 03:41:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 61 states and 113 transitions. [2018-11-23 03:41:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2018-11-23 03:41:52,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 03:41:52,010 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:41:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 03:41:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:41:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 30 states and 53 transitions. [2018-11-23 03:41:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2018-11-23 03:41:53,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:41:53,512 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-11-23 03:41:53,519 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 03:41:53,730 INFO L579 CodeCheckObserver]: Invariant with dag size 26 [2018-11-23 03:41:53,740 INFO L579 CodeCheckObserver]: Invariant with dag size 25 [2018-11-23 03:41:53,741 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 03:41:53,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:41:53 ImpRootNode [2018-11-23 03:41:53,741 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 03:41:53,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:41:53,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:41:53,742 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:41:53,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:39" (3/4) ... [2018-11-23 03:41:53,745 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:41:53,761 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 178 nodes and edges [2018-11-23 03:41:53,763 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-23 03:41:53,763 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:41:53,764 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:41:53,856 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3177ad8f-6811-4ca3-b1f4-1e9c0fc940ed/bin-2019/ukojak/witness.graphml [2018-11-23 03:41:53,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:41:53,857 INFO L168 Benchmark]: Toolchain (without parser) took 81756.02 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 557.8 MB). Free memory was 953.9 MB in the beginning and 1.2 GB in the end (delta: -291.9 MB). Peak memory consumption was 265.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,858 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:41:53,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 924.3 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 921.6 MB in the beginning and 1.1 GB in the end (delta: -227.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,858 INFO L168 Benchmark]: Boogie Preprocessor took 54.83 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,859 INFO L168 Benchmark]: RCFGBuilder took 67040.82 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -124.9 MB). Peak memory consumption was 492.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,859 INFO L168 Benchmark]: CodeCheck took 14008.49 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 226.0 MB). Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.6 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,859 INFO L168 Benchmark]: Witness Printer took 114.37 ms. Allocated memory is still 1.6 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:53,861 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, 206 locations, 1 error locations. SAFE Result, 13.7s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12412 SDtfs, 24902 SDslu, 16632 SDs, 0 SdLazy, 74280 SolverSat, 9558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1880 GetRequests, 1604 SyntacticMatches, 102 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16691 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 32680 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 68/238 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: 172]: 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: 582]: Loop Invariant Derived loop invariant: ((((!(a10 == 2) && a12 == 0) && a4 == 14) || ((218 < a1 && !(!(a10 == 2) || !(a19 == 6))) && a4 == 14)) || ((!(a19 == 6) && a12 == 0) && a4 == 14)) || ((a1 <= 38 && a12 == 0) && a4 == 14) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((218 < a1 && !(!(a10 == 2) || !(a19 == 6))) && a4 == 14) || ((((a1 <= 38 || !(a10 == 2)) || !(a19 == 6)) && a12 == 0) && a4 == 14) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 403.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 924.3 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 130.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 921.6 MB in the beginning and 1.1 GB in the end (delta: -227.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.83 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 67040.82 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -124.9 MB). Peak memory consumption was 492.1 MB. Max. memory is 11.5 GB. * CodeCheck took 14008.49 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 226.0 MB). Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.6 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. * Witness Printer took 114.37 ms. Allocated memory is still 1.6 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...