./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label04_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label04_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/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 5fd2482788fea6b43734c3f004d7ea7158b142e8 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:26:37,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:26:37,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:26:37,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:26:37,708 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:26:37,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:26:37,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:26:37,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:26:37,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:26:37,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:26:37,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:26:37,713 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:26:37,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:26:37,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:26:37,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:26:37,715 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:26:37,716 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:26:37,717 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:26:37,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:26:37,719 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:26:37,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:26:37,720 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:26:37,721 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:26:37,722 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:26:37,722 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:26:37,722 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:26:37,723 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:26:37,723 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:26:37,724 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:26:37,725 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:26:37,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:26:37,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:26:37,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:26:37,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:26:37,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:26:37,727 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:26:37,727 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 15:26:37,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:26:37,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:26:37,737 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:26:37,737 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:26:37,738 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:26:37,738 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:26:37,738 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:26:37,738 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:26:37,738 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:26:37,739 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:26:37,740 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:26:37,740 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:26:37,740 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:26:37,740 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:26:37,740 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:26:37,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:26:37,741 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:26:37,741 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:26:37,741 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:26:37,741 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:26:37,741 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:26:37,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:26:37,741 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_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/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 -> 5fd2482788fea6b43734c3f004d7ea7158b142e8 [2018-11-18 15:26:37,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:26:37,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:26:37,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:26:37,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:26:37,777 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:26:37,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label04_true-unreach-call.c [2018-11-18 15:26:37,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/data/6b8d30458/46b075c2f309487180e0470b9ad284c5/FLAG7095229f7 [2018-11-18 15:26:38,276 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:26:38,277 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/sv-benchmarks/c/eca-rers2012/Problem10_label04_true-unreach-call.c [2018-11-18 15:26:38,286 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/data/6b8d30458/46b075c2f309487180e0470b9ad284c5/FLAG7095229f7 [2018-11-18 15:26:38,797 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/data/6b8d30458/46b075c2f309487180e0470b9ad284c5 [2018-11-18 15:26:38,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:26:38,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:26:38,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:26:38,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:26:38,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:26:38,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:26:38" (1/1) ... [2018-11-18 15:26:38,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:38, skipping insertion in model container [2018-11-18 15:26:38,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:26:38" (1/1) ... [2018-11-18 15:26:38,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:26:38,843 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:26:39,069 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:26:39,071 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:26:39,140 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:26:39,150 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:26:39,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39 WrapperNode [2018-11-18 15:26:39,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:26:39,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:26:39,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:26:39,152 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:26:39,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:26:39,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:26:39,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:26:39,262 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:26:39,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... [2018-11-18 15:26:39,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:26:39,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:26:39,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:26:39,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:26:39,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:26:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/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 [2018-11-18 15:26:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 15:26:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:26:39,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:27:41,682 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:27:41,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:41 BoogieIcfgContainer [2018-11-18 15:27:41,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:27:41,683 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:27:41,683 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:27:41,689 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:27:41,689 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:41" (1/1) ... [2018-11-18 15:27:41,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:27:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2018-11-18 15:27:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2018-11-18 15:27:41,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 15:27:41,721 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:27:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-11-18 15:27:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-11-18 15:27:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:27:41,977 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:42,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:27:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2018-11-18 15:27:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2018-11-18 15:27:42,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:27:42,544 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:27:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2018-11-18 15:27:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2018-11-18 15:27:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:27:43,765 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:27:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 39 states and 63 transitions. [2018-11-18 15:27:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2018-11-18 15:27:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:27:44,237 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 15:27:53,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2018-11-18 15:27:53,385 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2018-11-18 15:27:53,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:27:53,386 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 15:27:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 47 states and 77 transitions. [2018-11-18 15:27:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 77 transitions. [2018-11-18 15:27:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:27:53,813 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 15:27:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 50 states and 82 transitions. [2018-11-18 15:27:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 82 transitions. [2018-11-18 15:27:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:27:54,218 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 15:27:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 59 states and 97 transitions. [2018-11-18 15:27:55,627 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 97 transitions. [2018-11-18 15:27:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:27:55,628 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 15:27:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 60 states and 98 transitions. [2018-11-18 15:27:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 98 transitions. [2018-11-18 15:27:56,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:27:56,425 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 15:27:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 63 states and 101 transitions. [2018-11-18 15:27:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 101 transitions. [2018-11-18 15:27:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:27:57,186 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:27:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 15:27:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:27:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 54 transitions. [2018-11-18 15:27:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2018-11-18 15:27:59,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:27:59,721 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-11-18 15:27:59,727 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 15:27:59,878 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2018-11-18 15:28:00,045 INFO L579 CodeCheckObserver]: Invariant with dag size 25 [2018-11-18 15:28:00,054 INFO L579 CodeCheckObserver]: Invariant with dag size 30 [2018-11-18 15:28:00,055 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 15:28:00,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:28:00 ImpRootNode [2018-11-18 15:28:00,056 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:28:00,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:28:00,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:28:00,057 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:28:00,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:41" (3/4) ... [2018-11-18 15:28:00,061 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:28:00,077 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 179 nodes and edges [2018-11-18 15:28:00,078 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 15:28:00,079 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:28:00,080 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:28:00,172 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_afe98fda-bc02-4b9c-9cdf-9ff7ee3add3c/bin-2019/ukojak/witness.graphml [2018-11-18 15:28:00,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:28:00,173 INFO L168 Benchmark]: Toolchain (without parser) took 81373.84 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 508.6 MB). Free memory was 956.5 MB in the beginning and 1.4 GB in the end (delta: -427.2 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,173 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. [2018-11-18 15:28:00,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.39 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 921.6 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 921.6 MB in the beginning and 1.2 GB in the end (delta: -250.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,174 INFO L168 Benchmark]: Boogie Preprocessor took 47.75 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,174 INFO L168 Benchmark]: RCFGBuilder took 62372.73 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -93.6 MB). Peak memory consumption was 473.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,175 INFO L168 Benchmark]: CodeCheck took 18373.40 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 133.7 MB). Free memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: -146.7 MB). Peak memory consumption was 525.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,175 INFO L168 Benchmark]: Witness Printer took 115.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:28:00,177 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, 18.0s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15244 SDtfs, 37220 SDslu, 36400 SDs, 0 SdLazy, 79422 SolverSat, 11714 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2004 GetRequests, 1754 SyntacticMatches, 132 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7943 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 56450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 135/319 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: 202]: 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 && !(a10 == 1)) && a4 == 14) || ((a12 == 0 && a4 == 14) && (39 <= a1 || a1 + 13 <= 0))) || ((!(a19 == 6) && a12 == 0) && a4 == 14) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((a19 == 8 || a19 == 7) || 9 <= a19) && a12 == 0) && a4 == 14) || (((((38 < a1 || a19 <= 5) || !(a10 == 1)) || a1 + 13 <= 0) && a12 == 0) && a4 == 14) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 351.39 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 921.6 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 110.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 921.6 MB in the beginning and 1.2 GB in the end (delta: -250.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.75 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 62372.73 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -93.6 MB). Peak memory consumption was 473.8 MB. Max. memory is 11.5 GB. * CodeCheck took 18373.40 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 133.7 MB). Free memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: -146.7 MB). Peak memory consumption was 525.1 MB. Max. memory is 11.5 GB. * Witness Printer took 115.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...