./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label35_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_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label35_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/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 a5075b92abebcbe37fcff17adbe2d1154240de3f ................................................................................................................................................................................................................................................................................................ 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 13:59:40,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:59:40,175 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:59:40,184 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:59:40,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:59:40,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:59:40,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:59:40,187 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:59:40,188 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:59:40,189 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:59:40,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:59:40,190 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:59:40,191 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:59:40,192 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:59:40,193 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:59:40,194 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:59:40,194 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:59:40,196 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:59:40,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:59:40,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:59:40,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:59:40,200 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:59:40,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:59:40,202 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:59:40,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:59:40,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:59:40,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:59:40,205 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:59:40,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:59:40,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:59:40,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:59:40,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:59:40,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:59:40,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:59:40,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:59:40,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:59:40,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 13:59:40,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:59:40,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:59:40,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:59:40,222 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 13:59:40,222 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:59:40,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:59:40,223 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:59:40,223 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:59:40,223 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:59:40,223 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:59:40,224 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:59:40,225 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:59:40,225 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 13:59:40,225 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 13:59:40,225 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:59:40,225 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:59:40,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 13:59:40,226 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:59:40,226 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:59:40,226 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:59:40,226 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 13:59:40,226 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:59:40,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:59:40,227 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_fa44c101-a4a2-4d24-aa9c-da273a716faa/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 -> a5075b92abebcbe37fcff17adbe2d1154240de3f [2018-11-23 13:59:40,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:59:40,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:59:40,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:59:40,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:59:40,267 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:59:40,268 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-11-23 13:59:40,312 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/data/1c57f0b7d/543ec340e73243af8a4b977f4bfd0f03/FLAG28d777042 [2018-11-23 13:59:40,735 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:59:40,735 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/sv-benchmarks/c/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-11-23 13:59:40,747 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/data/1c57f0b7d/543ec340e73243af8a4b977f4bfd0f03/FLAG28d777042 [2018-11-23 13:59:40,761 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/data/1c57f0b7d/543ec340e73243af8a4b977f4bfd0f03 [2018-11-23 13:59:40,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:59:40,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:59:40,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:59:40,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:59:40,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:59:40,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:40" (1/1) ... [2018-11-23 13:59:40,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:40, skipping insertion in model container [2018-11-23 13:59:40,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:40" (1/1) ... [2018-11-23 13:59:40,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:59:40,827 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:59:41,084 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:59:41,087 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:59:41,172 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:59:41,186 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:59:41,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41 WrapperNode [2018-11-23 13:59:41,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:59:41,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:59:41,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:59:41,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:59:41,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:59:41,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:59:41,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:59:41,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:59:41,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... [2018-11-23 13:59:41,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:59:41,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:59:41,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:59:41,390 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:59:41,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/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 13:59:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:59:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:59:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:00:17,997 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:00:17,998 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 14:00:17,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:17 BoogieIcfgContainer [2018-11-23 14:00:17,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:00:17,998 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 14:00:17,999 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 14:00:18,006 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 14:00:18,006 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:17" (1/1) ... [2018-11-23 14:00:18,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:00:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-23 14:00:18,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-23 14:00:18,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 14:00:18,042 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:18,216 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 14:00:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:18,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-23 14:00:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-23 14:00:18,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:00:18,268 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:18,580 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 14:00:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-11-23 14:00:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-11-23 14:00:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:00:18,920 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:19,446 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 14:00:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 25 states and 44 transitions. [2018-11-23 14:00:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 44 transitions. [2018-11-23 14:00:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:00:20,040 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:20,322 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 14:00:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 27 states and 49 transitions. [2018-11-23 14:00:20,481 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 49 transitions. [2018-11-23 14:00:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:00:20,482 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:20,828 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 14:00:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2018-11-23 14:00:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2018-11-23 14:00:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:00:21,141 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:22,039 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 14:00:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:24,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 75 transitions. [2018-11-23 14:00:24,693 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 75 transitions. [2018-11-23 14:00:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:00:24,693 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:25,307 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 14:00:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 43 states and 82 transitions. [2018-11-23 14:00:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 82 transitions. [2018-11-23 14:00:25,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:00:25,849 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:26,268 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 14:00:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 47 states and 88 transitions. [2018-11-23 14:00:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 88 transitions. [2018-11-23 14:00:26,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 14:00:26,868 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:27,263 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 14:00:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 50 states and 97 transitions. [2018-11-23 14:00:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 97 transitions. [2018-11-23 14:00:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:00:27,949 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:28,423 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 14:00:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 52 states and 99 transitions. [2018-11-23 14:00:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 99 transitions. [2018-11-23 14:00:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:00:28,660 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:29,165 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 14:00:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 55 states and 102 transitions. [2018-11-23 14:00:29,323 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 102 transitions. [2018-11-23 14:00:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:00:29,324 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:29,741 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 14:00:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 57 states and 105 transitions. [2018-11-23 14:00:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 105 transitions. [2018-11-23 14:00:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:00:29,920 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:00:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:00:30,356 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 14:00:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:00:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2018-11-23 14:00:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2018-11-23 14:00:30,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:00:30,584 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2018-11-23 14:00:30,592 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 14:00:30,748 INFO L579 CodeCheckObserver]: Invariant with dag size 22 [2018-11-23 14:00:30,755 INFO L579 CodeCheckObserver]: Invariant with dag size 20 [2018-11-23 14:00:30,756 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 14:00:30,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 02:00:30 ImpRootNode [2018-11-23 14:00:30,756 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 14:00:30,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:00:30,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:00:30,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:00:30,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:17" (3/4) ... [2018-11-23 14:00:30,760 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:00:30,775 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 178 nodes and edges [2018-11-23 14:00:30,776 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-23 14:00:30,777 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 14:00:30,778 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:00:30,862 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa44c101-a4a2-4d24-aa9c-da273a716faa/bin-2019/ukojak/witness.graphml [2018-11-23 14:00:30,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:00:30,863 INFO L168 Benchmark]: Toolchain (without parser) took 50098.92 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 562.6 MB). Free memory was 952.2 MB in the beginning and 929.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 585.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,864 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:00:30,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.90 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 917.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 917.3 MB in the beginning and 1.2 GB in the end (delta: -240.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,865 INFO L168 Benchmark]: Boogie Preprocessor took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,865 INFO L168 Benchmark]: RCFGBuilder took 36608.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.3 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -137.2 MB). Peak memory consumption was 499.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,865 INFO L168 Benchmark]: CodeCheck took 12757.84 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 209.7 MB). Free memory was 1.3 GB in the beginning and 942.2 MB in the end (delta: 349.1 MB). Peak memory consumption was 558.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,866 INFO L168 Benchmark]: Witness Printer took 106.06 ms. Allocated memory is still 1.6 GB. Free memory was 942.2 MB in the beginning and 929.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:00:30,868 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, 12.5s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49336 SDtfs, 94082 SDslu, 65904 SDs, 0 SdLazy, 274510 SolverSat, 34860 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2222 GetRequests, 1923 SyntacticMatches, 165 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11701 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 42196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 184/352 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: 157]: 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: (((a12 == 0 && a4 == 14) && !(a10 == 4)) || ((!(a19 == 7) && a12 == 0) && a4 == 14)) || ((a12 == 0 && a4 == 14) && 0 <= a1 + 12) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (a12 == 0 && a4 == 14) && ((!(a19 == 7) || 0 < a1 + 13) || !(a10 == 4)) - 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 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 420.90 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 917.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 145.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 917.3 MB in the beginning and 1.2 GB in the end (delta: -240.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 36608.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.3 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -137.2 MB). Peak memory consumption was 499.6 MB. Max. memory is 11.5 GB. * CodeCheck took 12757.84 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 209.7 MB). Free memory was 1.3 GB in the beginning and 942.2 MB in the end (delta: 349.1 MB). Peak memory consumption was 558.8 MB. Max. memory is 11.5 GB. * Witness Printer took 106.06 ms. Allocated memory is still 1.6 GB. Free memory was 942.2 MB in the beginning and 929.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...