./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:48:26,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:48:26,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:48:26,737 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:48:26,737 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:48:26,738 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:48:26,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:48:26,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:48:26,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:48:26,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:48:26,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:48:26,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:48:26,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:48:26,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:48:26,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:48:26,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:48:26,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:48:26,746 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:48:26,748 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:48:26,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:48:26,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:48:26,750 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:48:26,752 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:48:26,752 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:48:26,752 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:48:26,753 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:48:26,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:48:26,754 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:48:26,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:48:26,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:48:26,756 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:48:26,756 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:48:26,756 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:48:26,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:48:26,757 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:48:26,758 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:48:26,758 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-22 21:48:26,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:48:26,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:48:26,769 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:48:26,769 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-22 21:48:26,769 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 21:48:26,769 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 21:48:26,769 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:48:26,770 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:48:26,771 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-22 21:48:26,771 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:48:26,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-22 21:48:26,772 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:48:26,772 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:48:26,772 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:48:26,772 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-22 21:48:26,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:48:26,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:48:26,773 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_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da [2018-11-22 21:48:26,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:48:26,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:48:26,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:48:26,805 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:48:26,805 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:48:26,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-11-22 21:48:26,845 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/data/bd7011a26/cfca904132554ae48c05c503fd8a116f/FLAGeadaa64d5 [2018-11-22 21:48:27,245 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:48:27,245 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-11-22 21:48:27,249 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/data/bd7011a26/cfca904132554ae48c05c503fd8a116f/FLAGeadaa64d5 [2018-11-22 21:48:27,258 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/data/bd7011a26/cfca904132554ae48c05c503fd8a116f [2018-11-22 21:48:27,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:48:27,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:48:27,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:48:27,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:48:27,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:48:27,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27, skipping insertion in model container [2018-11-22 21:48:27,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:48:27,281 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:48:27,383 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:48:27,385 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:48:27,394 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:48:27,401 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:48:27,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27 WrapperNode [2018-11-22 21:48:27,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:48:27,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:48:27,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:48:27,402 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:48:27,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:48:27,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:48:27,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:48:27,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:48:27,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:48:27,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:48:27,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:48:27,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:48:27,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:48:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/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 [2018-11-22 21:48:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:48:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:48:27,593 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:48:27,594 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 21:48:27,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:48:27 BoogieIcfgContainer [2018-11-22 21:48:27,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:48:27,594 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-22 21:48:27,594 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-22 21:48:27,600 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-22 21:48:27,601 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:48:27" (1/1) ... [2018-11-22 21:48:27,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:48:27,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-22 21:48:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-22 21:48:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-22 21:48:27,629 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2018-11-22 21:48:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-11-22 21:48:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-22 21:48:27,790 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2018-11-22 21:48:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2018-11-22 21:48:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-22 21:48:28,036 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-11-22 21:48:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-11-22 21:48:28,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-22 21:48:28,082 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:28,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2018-11-22 21:48:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2018-11-22 21:48:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 21:48:28,117 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-11-22 21:48:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-11-22 21:48:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 21:48:28,416 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2018-11-22 21:48:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2018-11-22 21:48:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 21:48:28,667 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2018-11-22 21:48:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2018-11-22 21:48:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 21:48:29,022 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2018-11-22 21:48:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2018-11-22 21:48:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:29,407 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:48:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 39 states and 62 transitions. [2018-11-22 21:48:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2018-11-22 21:48:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:29,600 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 43 states and 70 transitions. [2018-11-22 21:48:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2018-11-22 21:48:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:29,947 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 46 states and 75 transitions. [2018-11-22 21:48:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2018-11-22 21:48:30,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:30,403 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 51 states and 85 transitions. [2018-11-22 21:48:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 85 transitions. [2018-11-22 21:48:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:31,031 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 54 states and 89 transitions. [2018-11-22 21:48:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 89 transitions. [2018-11-22 21:48:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:31,219 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 58 states and 99 transitions. [2018-11-22 21:48:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2018-11-22 21:48:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:31,862 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-22 21:48:32,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 61 states and 102 transitions. [2018-11-22 21:48:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 102 transitions. [2018-11-22 21:48:32,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 21:48:32,253 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 63 states and 104 transitions. [2018-11-22 21:48:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 104 transitions. [2018-11-22 21:48:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:32,395 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:48:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 64 states and 104 transitions. [2018-11-22 21:48:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 104 transitions. [2018-11-22 21:48:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:32,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:32,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 21:48:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 65 states and 104 transitions. [2018-11-22 21:48:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 104 transitions. [2018-11-22 21:48:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:32,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 65 states and 102 transitions. [2018-11-22 21:48:33,088 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2018-11-22 21:48:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:33,089 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:33,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 72 states and 115 transitions. [2018-11-22 21:48:33,816 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 115 transitions. [2018-11-22 21:48:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:33,819 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 73 states and 115 transitions. [2018-11-22 21:48:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 115 transitions. [2018-11-22 21:48:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:34,001 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:48:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 75 states and 117 transitions. [2018-11-22 21:48:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 117 transitions. [2018-11-22 21:48:34,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:34,702 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:48:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 76 states and 117 transitions. [2018-11-22 21:48:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 117 transitions. [2018-11-22 21:48:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:34,890 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:48:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 78 states and 119 transitions. [2018-11-22 21:48:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 119 transitions. [2018-11-22 21:48:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-22 21:48:35,295 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 21:48:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 66 states and 100 transitions. [2018-11-22 21:48:35,443 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 100 transitions. [2018-11-22 21:48:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:48:35,443 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:48:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 67 states and 100 transitions. [2018-11-22 21:48:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2018-11-22 21:48:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:48:35,582 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:48:35,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 68 states and 100 transitions. [2018-11-22 21:48:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2018-11-22 21:48:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:48:35,764 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:48:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 71 states and 104 transitions. [2018-11-22 21:48:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2018-11-22 21:48:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:48:36,128 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 21:48:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:48:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 21:48:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 21:48:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-11-22 21:48:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-11-22 21:48:36,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:48:36,365 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 30 iterations. [2018-11-22 21:48:36,371 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-22 21:48:36,457 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-22 21:48:36,459 INFO L579 CodeCheckObserver]: Invariant with dag size 30 [2018-11-22 21:48:36,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 09:48:36 ImpRootNode [2018-11-22 21:48:36,464 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-22 21:48:36,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:48:36,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:48:36,465 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:48:36,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:48:27" (3/4) ... [2018-11-22 21:48:36,468 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:48:36,474 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 21:48:36,474 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-22 21:48:36,475 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:48:36,502 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bad157d1-73a7-4635-b4ed-a3a9e4c8695c/bin-2019/ukojak/witness.graphml [2018-11-22 21:48:36,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:48:36,502 INFO L168 Benchmark]: Toolchain (without parser) took 9242.03 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 356.0 MB). Free memory was 954.8 MB in the beginning and 1.0 GB in the end (delta: -93.1 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. [2018-11-22 21:48:36,503 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:48:36,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:48:36,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:48:36,504 INFO L168 Benchmark]: Boogie Preprocessor took 10.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:48:36,504 INFO L168 Benchmark]: RCFGBuilder took 163.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:48:36,505 INFO L168 Benchmark]: CodeCheck took 8870.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 102.9 MB). Peak memory consumption was 292.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:48:36,505 INFO L168 Benchmark]: Witness Printer took 37.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-22 21:48:36,507 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, 16 locations, 4 error locations. SAFE Result, 8.7s OverallTime, 30 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, -854808900 SDslu, 0 SDs, 0 SdLazy, 1588956076 SolverSat, -922407092 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4061 GetRequests, 3538 SyntacticMatches, 261 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36087 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 23382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 4 PerfectInterpolantSequences, 143/343 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((2147483647 < y1 && y1 <= y2 + 2147483646) && y2 <= 2147483647) || (((1 <= y1 && y1 <= 2147483647) && y2 <= 2147483647) && 1 <= y2)) || (((1 <= y1 && y1 <= 2 * y2 + 2147483645) && 0 <= y2) && y2 < 1)) || (((y2 <= 2147483647 && 0 <= y2) && y1 <= y2 + 2147483647) && y2 + 2147483646 < y1)) || ((y1 <= y2 + 2147483646 && 0 <= y2) && 2 * y2 + 2147483645 < y1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 8870.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 102.9 MB). Peak memory consumption was 292.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...