./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/locks/test_locks_8_true-unreach-call_true-valid-memsafety_false-termination.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_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_8_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/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 f2cbbf56a13532141372a32a461d64a9d1351c0e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:16:49,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:16:49,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:16:49,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:16:49,627 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:16:49,628 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:16:49,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:16:49,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:16:49,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:16:49,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:16:49,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:16:49,633 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:16:49,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:16:49,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:16:49,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:16:49,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:16:49,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:16:49,636 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:16:49,638 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:16:49,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:16:49,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:16:49,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:16:49,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:16:49,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:16:49,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:16:49,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:16:49,644 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:16:49,645 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:16:49,646 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:16:49,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:16:49,647 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:16:49,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:16:49,647 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:16:49,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:16:49,648 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:16:49,649 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:16:49,649 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 13:16:49,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:16:49,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:16:49,660 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:16:49,660 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:16:49,660 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:16:49,661 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:16:49,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:16:49,661 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:16:49,661 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:16:49,661 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:16:49,661 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:16:49,662 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:16:49,663 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:16:49,663 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:16:49,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:16:49,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:16:49,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:16:49,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:16:49,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:16:49,664 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:16:49,664 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:16:49,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:16:49,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:16:49,664 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_a64c5add-e7d4-418b-953f-b465071c27c8/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 -> f2cbbf56a13532141372a32a461d64a9d1351c0e [2018-11-18 13:16:49,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:16:49,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:16:49,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:16:49,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:16:49,706 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:16:49,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/../../sv-benchmarks/c/locks/test_locks_8_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 13:16:49,750 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/data/a9bf78e63/1ab6069d67524c57914c32562525bd70/FLAG1a04b41b0 [2018-11-18 13:16:50,155 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:16:50,156 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/sv-benchmarks/c/locks/test_locks_8_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 13:16:50,160 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/data/a9bf78e63/1ab6069d67524c57914c32562525bd70/FLAG1a04b41b0 [2018-11-18 13:16:50,170 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/data/a9bf78e63/1ab6069d67524c57914c32562525bd70 [2018-11-18 13:16:50,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:16:50,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:16:50,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:16:50,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:16:50,175 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:16:50,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50, skipping insertion in model container [2018-11-18 13:16:50,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:16:50,198 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:16:50,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:16:50,307 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:16:50,325 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:16:50,333 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:16:50,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50 WrapperNode [2018-11-18 13:16:50,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:16:50,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:16:50,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:16:50,334 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:16:50,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:16:50,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:16:50,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:16:50,358 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:16:50,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:16:50,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:16:50,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:16:50,415 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:16:50,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:16:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/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 13:16:50,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:16:50,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:16:50,794 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:16:50,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:16:50 BoogieIcfgContainer [2018-11-18 13:16:50,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:16:50,795 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:16:50,795 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:16:50,805 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:16:50,806 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:16:50" (1/1) ... [2018-11-18 13:16:50,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:16:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 43 transitions. [2018-11-18 13:16:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 43 transitions. [2018-11-18 13:16:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:16:50,853 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,015 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 13:16:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2018-11-18 13:16:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2018-11-18 13:16:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 13:16:51,055 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,107 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 13:16:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2018-11-18 13:16:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2018-11-18 13:16:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 13:16:51,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,284 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 13:16:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2018-11-18 13:16:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2018-11-18 13:16:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 13:16:51,341 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,385 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 13:16:51,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2018-11-18 13:16:51,616 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2018-11-18 13:16:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:16:51,617 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,631 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 13:16:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2018-11-18 13:16:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2018-11-18 13:16:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:16:51,733 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:51,797 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 13:16:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2018-11-18 13:16:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2018-11-18 13:16:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:16:52,111 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:52,125 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 13:16:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2018-11-18 13:16:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2018-11-18 13:16:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:16:52,211 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:52,223 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 13:16:52,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2018-11-18 13:16:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2018-11-18 13:16:52,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:16:52,320 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:52,369 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 13:16:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2018-11-18 13:16:52,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2018-11-18 13:16:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:16:52,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:52,813 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 13:16:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2018-11-18 13:16:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2018-11-18 13:16:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:16:52,901 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:52,911 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 13:16:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2018-11-18 13:16:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2018-11-18 13:16:52,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:16:52,998 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:53,004 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 13:16:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2018-11-18 13:16:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2018-11-18 13:16:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:16:53,113 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:53,122 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 13:16:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2018-11-18 13:16:53,209 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2018-11-18 13:16:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:16:53,209 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:53,266 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 13:16:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-11-18 13:16:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-11-18 13:16:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:16:53,932 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:53,941 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 13:16:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2018-11-18 13:16:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2018-11-18 13:16:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:16:54,058 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:54,066 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 13:16:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2018-11-18 13:16:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2018-11-18 13:16:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:54,195 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:54,203 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 13:16:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-11-18 13:16:54,398 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-11-18 13:16:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:54,398 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:54,408 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 13:16:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2018-11-18 13:16:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2018-11-18 13:16:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:54,569 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:54,577 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 13:16:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2018-11-18 13:16:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2018-11-18 13:16:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:54,696 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:54,792 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 13:16:55,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 39 states and 63 transitions. [2018-11-18 13:16:55,959 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2018-11-18 13:16:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:55,959 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:55,966 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 13:16:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2018-11-18 13:16:56,173 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2018-11-18 13:16:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:16:56,173 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:56,181 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 13:16:56,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 32 states and 51 transitions. [2018-11-18 13:16:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2018-11-18 13:16:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:56,351 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:56,357 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 13:16:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2018-11-18 13:16:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2018-11-18 13:16:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:56,577 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:56,581 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 13:16:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2018-11-18 13:16:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2018-11-18 13:16:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:56,746 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:56,753 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 13:16:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2018-11-18 13:16:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-11-18 13:16:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:56,909 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:57,011 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 13:16:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 68 transitions. [2018-11-18 13:16:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2018-11-18 13:16:58,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:58,412 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:58,417 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 13:16:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2018-11-18 13:16:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2018-11-18 13:16:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:58,592 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:58,596 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 13:16:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 43 states and 68 transitions. [2018-11-18 13:16:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2018-11-18 13:16:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:16:58,796 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:58,803 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 13:16:59,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2018-11-18 13:16:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2018-11-18 13:16:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:16:59,009 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:59,016 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 13:16:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2018-11-18 13:16:59,285 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2018-11-18 13:16:59,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:16:59,285 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:59,291 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 13:16:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2018-11-18 13:16:59,481 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2018-11-18 13:16:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:16:59,481 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:59,488 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 13:16:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2018-11-18 13:16:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2018-11-18 13:16:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:16:59,671 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:59,677 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 13:16:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:16:59,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2018-11-18 13:16:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2018-11-18 13:16:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:16:59,877 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:16:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:16:59,882 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 13:17:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:17:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2018-11-18 13:17:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2018-11-18 13:17:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:17:00,082 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:17:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:17:00,088 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 13:17:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:17:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2018-11-18 13:17:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2018-11-18 13:17:00,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:17:00,344 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:17:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:17:00,350 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 13:17:00,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:17:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2018-11-18 13:17:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2018-11-18 13:17:00,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:17:00,588 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2018-11-18 13:17:00,594 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 13:17:00,743 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:17:00,745 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:17:00,745 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:17:00,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:17:00 ImpRootNode [2018-11-18 13:17:00,745 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:17:00,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:17:00,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:17:00,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:17:00,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:16:50" (3/4) ... [2018-11-18 13:17:00,749 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:17:00,757 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 13:17:00,757 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 13:17:00,757 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 13:17:00,798 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a64c5add-e7d4-418b-953f-b465071c27c8/bin-2019/ukojak/witness.graphml [2018-11-18 13:17:00,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:17:00,799 INFO L168 Benchmark]: Toolchain (without parser) took 10627.16 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 446.7 MB). Free memory was 958.2 MB in the beginning and 1.4 GB in the end (delta: -436.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,800 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:17:00,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.70 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.55 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,801 INFO L168 Benchmark]: Boogie Preprocessor took 56.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,801 INFO L168 Benchmark]: RCFGBuilder took 380.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,801 INFO L168 Benchmark]: CodeCheck took 9950.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 310.9 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -296.4 MB). Peak memory consumption was 531.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:17:00,802 INFO L168 Benchmark]: Witness Printer took 52.69 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:17:00,803 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, 35 locations, 1 error locations. SAFE Result, 9.7s OverallTime, 37 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1089990396 SDslu, 0 SDs, 0 SdLazy, -282268168 SolverSat, -35152132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4166 GetRequests, 3910 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29507 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 448 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 22624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 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: 133]: 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: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.70 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.55 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 380.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. * CodeCheck took 9950.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 310.9 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -296.4 MB). Peak memory consumption was 531.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.69 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...