./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label18_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_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label18_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/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 ed29b44a6f9564cbed38c70bbb18181a8a1a6c41 ...................................................................................................................................................................................................................................................... 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 14:44:41,119 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:44:41,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:44:41,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:44:41,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:44:41,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:44:41,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:44:41,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:44:41,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:44:41,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:44:41,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:44:41,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:44:41,134 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:44:41,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:44:41,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:44:41,136 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:44:41,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:44:41,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:44:41,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:44:41,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:44:41,141 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:44:41,142 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:44:41,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:44:41,144 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:44:41,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:44:41,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:44:41,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:44:41,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:44:41,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:44:41,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:44:41,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:44:41,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:44:41,148 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:44:41,148 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:44:41,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:44:41,149 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:44:41,149 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 14:44:41,157 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:44:41,157 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:44:41,158 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:44:41,158 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 14:44:41,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:44:41,158 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:44:41,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:44:41,159 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:44:41,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:44:41,160 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:44:41,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:44:41,160 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 14:44:41,160 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 14:44:41,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:44:41,162 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:44:41,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 14:44:41,163 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:44:41,163 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:44:41,163 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:44:41,163 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 14:44:41,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:44:41,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:44:41,163 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_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/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 -> ed29b44a6f9564cbed38c70bbb18181a8a1a6c41 [2018-11-23 14:44:41,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:44:41,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:44:41,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:44:41,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:44:41,201 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:44:41,202 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label18_true-unreach-call.c [2018-11-23 14:44:41,241 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/data/d9dabaf52/6f5d47748bcc41198903b1a4bfd9c923/FLAG2bc91b708 [2018-11-23 14:44:41,657 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:44:41,657 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/sv-benchmarks/c/eca-rers2012/Problem10_label18_true-unreach-call.c [2018-11-23 14:44:41,666 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/data/d9dabaf52/6f5d47748bcc41198903b1a4bfd9c923/FLAG2bc91b708 [2018-11-23 14:44:42,011 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/data/d9dabaf52/6f5d47748bcc41198903b1a4bfd9c923 [2018-11-23 14:44:42,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:44:42,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:44:42,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:44:42,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:44:42,020 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:44:42,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a197f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42, skipping insertion in model container [2018-11-23 14:44:42,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:44:42,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:44:42,298 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:44:42,301 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:44:42,371 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:44:42,383 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:44:42,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42 WrapperNode [2018-11-23 14:44:42,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:44:42,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:44:42,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:44:42,385 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:44:42,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:44:42,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:44:42,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:44:42,505 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:44:42,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... [2018-11-23 14:44:42,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:44:42,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:44:42,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:44:42,557 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:44:42,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/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 14:44:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 14:44:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:44:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:45:29,234 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:45:29,234 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 14:45:29,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:29 BoogieIcfgContainer [2018-11-23 14:45:29,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:45:29,235 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 14:45:29,235 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 14:45:29,244 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 14:45:29,244 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:29" (1/1) ... [2018-11-23 14:45:29,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-23 14:45:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-23 14:45:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 14:45:29,282 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:29,436 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 14:45:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-23 14:45:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-23 14:45:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:45:29,485 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:29,756 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 14:45:30,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2018-11-23 14:45:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2018-11-23 14:45:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:45:30,105 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:30,424 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 14:45:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 37 transitions. [2018-11-23 14:45:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2018-11-23 14:45:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:45:30,649 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:30,833 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 14:45:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2018-11-23 14:45:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2018-11-23 14:45:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:45:30,911 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:31,942 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 14:45:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2018-11-23 14:45:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2018-11-23 14:45:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 14:45:32,842 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-23 14:45:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2018-11-23 14:45:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2018-11-23 14:45:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:45:34,706 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:45:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-23 14:45:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:45:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2018-11-23 14:45:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2018-11-23 14:45:35,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:45:35,280 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-11-23 14:45:35,286 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 14:45:35,408 INFO L579 CodeCheckObserver]: Invariant with dag size 21 [2018-11-23 14:45:35,415 INFO L579 CodeCheckObserver]: Invariant with dag size 19 [2018-11-23 14:45:35,416 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 14:45:35,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 02:45:35 ImpRootNode [2018-11-23 14:45:35,416 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 14:45:35,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:45:35,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:45:35,417 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:45:35,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:29" (3/4) ... [2018-11-23 14:45:35,421 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:45:35,439 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 178 nodes and edges [2018-11-23 14:45:35,440 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-23 14:45:35,441 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 14:45:35,442 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 14:45:35,537 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_54f65b18-0ec5-4f22-bf4a-ced9b0d13514/bin-2019/ukojak/witness.graphml [2018-11-23 14:45:35,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:45:35,538 INFO L168 Benchmark]: Toolchain (without parser) took 53523.31 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 483.9 MB). Free memory was 956.6 MB in the beginning and 929.9 MB in the end (delta: 26.7 MB). Peak memory consumption was 510.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,539 INFO L168 Benchmark]: CDTParser took 0.15 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 14:45:35,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.30 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 919.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -208.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,540 INFO L168 Benchmark]: Boogie Preprocessor took 52.07 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,540 INFO L168 Benchmark]: RCFGBuilder took 46677.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.1 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,541 INFO L168 Benchmark]: CodeCheck took 6181.42 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 185.6 MB). Free memory was 1.2 GB in the beginning and 953.9 MB in the end (delta: 269.5 MB). Peak memory consumption was 455.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,541 INFO L168 Benchmark]: Witness Printer took 120.91 ms. Allocated memory is still 1.5 GB. Free memory was 953.9 MB in the beginning and 929.9 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:35,542 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, 6.0s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 740 SDtfs, 1396 SDslu, 968 SDs, 0 SdLazy, 3692 SolverSat, 540 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 811 SyntacticMatches, 59 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3844 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 16088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 68/135 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: 178]: 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: (((!(a19 == 6) && a12 == 0) && a4 == 14) || ((!(a10 == 4) && a12 == 0) && a4 == 14)) || ((a1 <= 218 && a12 == 0) && a4 == 14) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (a12 == 0 && ((a1 <= 218 || !(a19 == 6)) || !(a10 == 4))) && 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 0.15 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 367.30 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 919.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -208.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.07 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 46677.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.1 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. * CodeCheck took 6181.42 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 185.6 MB). Free memory was 1.2 GB in the beginning and 953.9 MB in the end (delta: 269.5 MB). Peak memory consumption was 455.1 MB. Max. memory is 11.5 GB. * Witness Printer took 120.91 ms. Allocated memory is still 1.5 GB. Free memory was 953.9 MB in the beginning and 929.9 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...