./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label17_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label17_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/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 dde52c9168444887391772c09fe456cad8792595 ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:18:38,252 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:18:38,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:18:38,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:18:38,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:18:38,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:18:38,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:18:38,265 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:18:38,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:18:38,267 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:18:38,268 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:18:38,268 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:18:38,269 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:18:38,269 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:18:38,270 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:18:38,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:18:38,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:18:38,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:18:38,274 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:18:38,275 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:18:38,276 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:18:38,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:18:38,278 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:18:38,279 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:18:38,279 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:18:38,280 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:18:38,280 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:18:38,281 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:18:38,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:18:38,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:18:38,283 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:18:38,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:18:38,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:18:38,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:18:38,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:18:38,285 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:18:38,285 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:18:38,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:18:38,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:18:38,301 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:18:38,302 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:18:38,306 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:18:38,306 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:18:38,307 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:18:38,307 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:18:38,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:18:38,307 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:18:38,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:18:38,307 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:18:38,308 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:18:38,308 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:18:38,309 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:18:38,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:18:38,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:18:38,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:18:38,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:18:38,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:18:38,309 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:18:38,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:18:38,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:18:38,311 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_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/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 -> dde52c9168444887391772c09fe456cad8792595 [2018-10-26 23:18:38,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:18:38,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:18:38,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:18:38,352 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:18:38,353 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:18:38,353 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label17_true-unreach-call.c [2018-10-26 23:18:38,396 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/data/5940caebb/90c998b2699d4c09bbe55f8eb42abc80/FLAG8f65c0ab6 [2018-10-26 23:18:38,855 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:18:38,856 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/sv-benchmarks/c/eca-rers2012/Problem10_label17_true-unreach-call.c [2018-10-26 23:18:38,865 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/data/5940caebb/90c998b2699d4c09bbe55f8eb42abc80/FLAG8f65c0ab6 [2018-10-26 23:18:38,877 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/data/5940caebb/90c998b2699d4c09bbe55f8eb42abc80 [2018-10-26 23:18:38,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:18:38,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:18:38,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:18:38,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:18:38,891 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:18:38,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:18:38" (1/1) ... [2018-10-26 23:18:38,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:38, skipping insertion in model container [2018-10-26 23:18:38,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:18:38" (1/1) ... [2018-10-26 23:18:38,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:18:38,965 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:18:39,250 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:18:39,253 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:18:39,402 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:18:39,423 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:18:39,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39 WrapperNode [2018-10-26 23:18:39,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:18:39,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:18:39,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:18:39,425 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:18:39,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:18:39,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:18:39,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:18:39,599 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:18:39,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... [2018-10-26 23:18:39,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:18:39,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:18:39,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:18:39,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:18:39,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/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 [2018-10-26 23:18:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 23:18:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:18:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:21:06,754 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:21:06,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:06 BoogieIcfgContainer [2018-10-26 23:21:06,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:21:06,756 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:21:06,756 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:21:06,772 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:21:06,773 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:06" (1/1) ... [2018-10-26 23:21:06,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:21:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2018-10-26 23:21:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2018-10-26 23:21:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 23:21:06,826 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-10-26 23:21:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-10-26 23:21:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 23:21:07,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:08,140 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 20 [2018-10-26 23:21:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:08,615 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-26 23:21:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2018-10-26 23:21:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2018-10-26 23:21:19,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:21:19,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:30,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 32 states and 53 transitions. [2018-10-26 23:21:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2018-10-26 23:21:30,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:21:30,736 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:31,687 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2018-10-26 23:21:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 35 states and 57 transitions. [2018-10-26 23:21:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2018-10-26 23:21:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:21:31,847 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:32,644 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2018-10-26 23:21:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:32,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 36 states and 57 transitions. [2018-10-26 23:21:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2018-10-26 23:21:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:21:32,754 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:33,652 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:21:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 50 states and 89 transitions. [2018-10-26 23:21:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 89 transitions. [2018-10-26 23:21:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:21:40,887 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:21:41,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 57 states and 97 transitions. [2018-10-26 23:21:41,975 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2018-10-26 23:21:41,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:21:41,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:21:42,826 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2018-10-26 23:21:43,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:43,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 58 states and 97 transitions. [2018-10-26 23:21:43,177 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2018-10-26 23:21:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:21:43,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:45,303 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-26 23:21:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-26 23:21:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 66 states and 111 transitions. [2018-10-26 23:21:47,392 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 111 transitions. [2018-10-26 23:21:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:21:47,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-26 23:21:49,759 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2018-10-26 23:21:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 67 states and 111 transitions. [2018-10-26 23:21:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 111 transitions. [2018-10-26 23:21:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:21:49,831 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-26 23:21:51,565 WARN L179 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2018-10-26 23:21:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 68 states and 111 transitions. [2018-10-26 23:21:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 111 transitions. [2018-10-26 23:21:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 23:21:51,666 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:21:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:21:54,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:21:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 43 states and 70 transitions. [2018-10-26 23:21:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2018-10-26 23:21:54,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:21:54,460 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2018-10-26 23:21:54,468 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 23:21:54,782 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2018-10-26 23:21:54,782 INFO L582 CodeCheckObserver]: Invariant with dag size 26 [2018-10-26 23:21:54,790 INFO L582 CodeCheckObserver]: Invariant with dag size 24 [2018-10-26 23:21:54,791 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:21:54,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:21:54 ImpRootNode [2018-10-26 23:21:54,791 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:21:54,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:21:54,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:21:54,792 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:21:54,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:06" (3/4) ... [2018-10-26 23:21:54,797 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:21:54,814 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 180 nodes and edges [2018-10-26 23:21:54,815 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-10-26 23:21:54,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 23:21:54,817 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:21:54,927 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b4a14ab3-e3ec-47f4-b31e-f24204d333bf/bin-2019/ukojak/witness.graphml [2018-10-26 23:21:54,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:21:54,928 INFO L168 Benchmark]: Toolchain (without parser) took 196048.41 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 405.8 MB). Free memory was 956.4 MB in the beginning and 1.3 GB in the end (delta: -370.6 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,929 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:21:54,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 925.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 925.8 MB in the beginning and 1.2 GB in the end (delta: -227.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,930 INFO L168 Benchmark]: Boogie Preprocessor took 94.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2018-10-26 23:21:54,930 INFO L168 Benchmark]: RCFGBuilder took 147062.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.9 MB). Peak memory consumption was 325.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,930 INFO L168 Benchmark]: CodeCheck took 48035.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -257.3 MB). Peak memory consumption was 421.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,931 INFO L168 Benchmark]: Witness Printer took 135.99 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:54,932 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, 207 locations, 1 error locations. SAFE Result, 47.6s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28748 SDtfs, 67828 SDslu, 65840 SDs, 0 SdLazy, 141176 SolverSat, 18648 SolverUnsat, 3072 SolverUnknown, 0 SolverNotchecked, 257.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2341 GetRequests, 2037 SyntacticMatches, 136 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14577 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 57550 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 90/332 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: 94]: 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: (((((a1 <= 38 || 219 <= a1) && a12 == 0) && a4 == 14) || ((!(a19 == 6) && a12 == 0) && a4 == 14)) || 9 <= a19) || ((a12 == 0 && a4 == 14) && !(a10 == 4)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((a1 <= 38 || 218 < a1) || !(a19 == 6)) || !(a10 == 4)) && a12 == 0) && a4 == 14) || 9 <= a19 - 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 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 536.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 925.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 173.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 925.8 MB in the beginning and 1.2 GB in the end (delta: -227.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 147062.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.9 MB). Peak memory consumption was 325.4 MB. Max. memory is 11.5 GB. * CodeCheck took 48035.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -257.3 MB). Peak memory consumption was 421.6 MB. Max. memory is 11.5 GB. * Witness Printer took 135.99 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...