./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/nested_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/nested_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a881e1073186594f4727f809fbe5d917ff145543 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:09:35,048 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:09:35,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:09:35,056 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:09:35,056 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:09:35,057 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:09:35,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:09:35,059 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:09:35,060 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:09:35,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:09:35,061 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:09:35,061 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:09:35,062 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:09:35,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:09:35,063 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:09:35,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:09:35,064 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:09:35,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:09:35,066 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:09:35,067 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:09:35,068 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:09:35,069 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:09:35,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:09:35,070 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:09:35,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:09:35,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:09:35,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:09:35,072 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:09:35,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:09:35,073 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:09:35,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:09:35,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:09:35,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:09:35,074 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:09:35,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:09:35,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:09:35,076 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:09:35,086 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:09:35,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:09:35,087 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:09:35,087 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:09:35,087 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:09:35,087 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:09:35,087 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:09:35,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:09:35,088 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:09:35,089 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:09:35,089 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:09:35,090 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:09:35,090 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:09:35,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:09:35,091 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_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer 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 -> Automizer 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 -> a881e1073186594f4727f809fbe5d917ff145543 [2018-11-23 07:09:35,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:09:35,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:09:35,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:09:35,130 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:09:35,130 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:09:35,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/../../sv-benchmarks/c/loop-new/nested_true-unreach-call_true-termination.i [2018-11-23 07:09:35,179 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/data/f62daf0f7/1b4266e1345e4370862f37621ff682a2/FLAGae5d6c665 [2018-11-23 07:09:35,508 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:09:35,508 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/sv-benchmarks/c/loop-new/nested_true-unreach-call_true-termination.i [2018-11-23 07:09:35,512 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/data/f62daf0f7/1b4266e1345e4370862f37621ff682a2/FLAGae5d6c665 [2018-11-23 07:09:35,938 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/data/f62daf0f7/1b4266e1345e4370862f37621ff682a2 [2018-11-23 07:09:35,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:09:35,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:09:35,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:09:35,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:09:35,944 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:09:35,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:09:35" (1/1) ... [2018-11-23 07:09:35,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85f6425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:35, skipping insertion in model container [2018-11-23 07:09:35,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:09:35" (1/1) ... [2018-11-23 07:09:35,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:09:35,971 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:09:36,088 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:09:36,091 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:09:36,101 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:09:36,110 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:09:36,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36 WrapperNode [2018-11-23 07:09:36,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:09:36,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:09:36,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:09:36,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:09:36,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:09:36,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:09:36,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:09:36,123 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:09:36,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... [2018-11-23 07:09:36,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:09:36,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:09:36,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:09:36,136 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:09:36,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-11-23 07:09:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:09:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:09:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:09:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:09:36,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:09:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:09:36,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 07:09:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 07:09:36,308 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:09:36,308 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 07:09:36,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:09:36 BoogieIcfgContainer [2018-11-23 07:09:36,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:09:36,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:09:36,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:09:36,312 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:09:36,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:09:35" (1/3) ... [2018-11-23 07:09:36,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfb18cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:09:36, skipping insertion in model container [2018-11-23 07:09:36,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:36" (2/3) ... [2018-11-23 07:09:36,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfb18cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:09:36, skipping insertion in model container [2018-11-23 07:09:36,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:09:36" (3/3) ... [2018-11-23 07:09:36,314 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_true-unreach-call_true-termination.i [2018-11-23 07:09:36,320 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:09:36,325 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:09:36,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:09:36,355 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:09:36,355 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:09:36,356 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:09:36,356 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:09:36,356 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:09:36,356 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:09:36,356 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:09:36,356 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:09:36,356 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:09:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 07:09:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 07:09:36,373 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:36,373 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:36,375 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:36,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:36,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1266359381, now seen corresponding path program 1 times [2018-11-23 07:09:36,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:36,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:36,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:36,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:36,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:09:36,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:09:36,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:09:36,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:09:36,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:09:36,506 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-11-23 07:09:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:36,572 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2018-11-23 07:09:36,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:09:36,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 07:09:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:36,578 INFO L225 Difference]: With dead ends: 45 [2018-11-23 07:09:36,578 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 07:09:36,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:09:36,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 07:09:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2018-11-23 07:09:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 07:09:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-23 07:09:36,603 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2018-11-23 07:09:36,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:36,603 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 07:09:36,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:09:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-23 07:09:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 07:09:36,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:36,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:36,605 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:36,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:36,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1008321469, now seen corresponding path program 1 times [2018-11-23 07:09:36,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:36,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:36,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:36,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:36,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:09:36,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:09:36,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:09:36,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:09:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:09:36,644 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-11-23 07:09:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:36,677 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-23 07:09:36,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:09:36,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-23 07:09:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:36,678 INFO L225 Difference]: With dead ends: 28 [2018-11-23 07:09:36,678 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 07:09:36,679 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:09:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 07:09:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-11-23 07:09:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 07:09:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-23 07:09:36,683 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2018-11-23 07:09:36,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:36,683 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-23 07:09:36,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:09:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-23 07:09:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 07:09:36,684 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:36,684 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:36,684 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:36,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1823795457, now seen corresponding path program 1 times [2018-11-23 07:09:36,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:36,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:36,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:36,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:36,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:36,724 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:36,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:36,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:36,837 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:36,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-23 07:09:36,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:09:36,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:09:36,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:09:36,838 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2018-11-23 07:09:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:36,857 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-23 07:09:36,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:09:36,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-23 07:09:36,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:36,858 INFO L225 Difference]: With dead ends: 31 [2018-11-23 07:09:36,858 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 07:09:36,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:09:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 07:09:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-23 07:09:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 07:09:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-23 07:09:36,863 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2018-11-23 07:09:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:36,863 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-23 07:09:36,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:09:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-23 07:09:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 07:09:36,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:36,864 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:36,864 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:36,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:36,865 INFO L82 PathProgramCache]: Analyzing trace with hash 478895679, now seen corresponding path program 2 times [2018-11-23 07:09:36,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:36,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:36,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:36,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:36,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:36,915 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:36,925 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:09:36,938 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:09:36,938 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:36,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:37,012 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:37,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-23 07:09:37,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 07:09:37,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 07:09:37,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:09:37,013 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2018-11-23 07:09:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:37,037 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2018-11-23 07:09:37,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:09:37,037 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-23 07:09:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:37,038 INFO L225 Difference]: With dead ends: 35 [2018-11-23 07:09:37,038 INFO L226 Difference]: Without dead ends: 23 [2018-11-23 07:09:37,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:09:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-23 07:09:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-23 07:09:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 07:09:37,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-23 07:09:37,043 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19 [2018-11-23 07:09:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:37,043 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-23 07:09:37,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 07:09:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-23 07:09:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 07:09:37,044 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:37,044 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:37,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:37,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:37,045 INFO L82 PathProgramCache]: Analyzing trace with hash 815365117, now seen corresponding path program 3 times [2018-11-23 07:09:37,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:37,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:37,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,046 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:37,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:09:37,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:37,093 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:37,107 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:09:37,113 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 07:09:37,113 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:37,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 07:09:37,160 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:37,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2018-11-23 07:09:37,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 07:09:37,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 07:09:37,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-23 07:09:37,161 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 10 states. [2018-11-23 07:09:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:37,388 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-11-23 07:09:37,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 07:09:37,389 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-23 07:09:37,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:37,389 INFO L225 Difference]: With dead ends: 62 [2018-11-23 07:09:37,389 INFO L226 Difference]: Without dead ends: 48 [2018-11-23 07:09:37,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:09:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-23 07:09:37,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2018-11-23 07:09:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 07:09:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-11-23 07:09:37,397 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2018-11-23 07:09:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:37,397 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-11-23 07:09:37,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 07:09:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-23 07:09:37,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 07:09:37,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:37,398 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:37,398 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:37,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:37,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1891685973, now seen corresponding path program 4 times [2018-11-23 07:09:37,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:37,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:37,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:37,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 07:09:37,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:37,468 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:37,480 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:09:37,493 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:09:37,493 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:37,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 07:09:37,567 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:37,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-23 07:09:37,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 07:09:37,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 07:09:37,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:09:37,568 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 13 states. [2018-11-23 07:09:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:37,598 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-11-23 07:09:37,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:09:37,599 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2018-11-23 07:09:37,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:37,599 INFO L225 Difference]: With dead ends: 59 [2018-11-23 07:09:37,599 INFO L226 Difference]: Without dead ends: 41 [2018-11-23 07:09:37,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:09:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-23 07:09:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2018-11-23 07:09:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 07:09:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-11-23 07:09:37,604 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 34 [2018-11-23 07:09:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:37,604 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-11-23 07:09:37,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 07:09:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-23 07:09:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 07:09:37,605 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:37,605 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:37,606 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:37,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:37,606 INFO L82 PathProgramCache]: Analyzing trace with hash -98733461, now seen corresponding path program 5 times [2018-11-23 07:09:37,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:37,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:37,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,607 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:37,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 25 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-23 07:09:37,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:37,681 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:37,697 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 07:09:37,715 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2018-11-23 07:09:37,716 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:37,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 25 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-23 07:09:37,792 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:37,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-23 07:09:37,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 07:09:37,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 07:09:37,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-11-23 07:09:37,793 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 15 states. [2018-11-23 07:09:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:37,821 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-11-23 07:09:37,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 07:09:37,822 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2018-11-23 07:09:37,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:37,823 INFO L225 Difference]: With dead ends: 65 [2018-11-23 07:09:37,823 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 07:09:37,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-11-23 07:09:37,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 07:09:37,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-23 07:09:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-23 07:09:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2018-11-23 07:09:37,832 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 38 [2018-11-23 07:09:37,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:37,832 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2018-11-23 07:09:37,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 07:09:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-23 07:09:37,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 07:09:37,833 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:37,833 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:37,833 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:37,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:37,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1878148565, now seen corresponding path program 6 times [2018-11-23 07:09:37,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:37,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:37,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,834 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:37,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 87 proven. 36 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-23 07:09:37,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:37,910 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:37,917 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-23 07:09:37,925 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2018-11-23 07:09:37,925 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:37,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-23 07:09:37,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:37,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2018-11-23 07:09:37,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 07:09:37,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 07:09:37,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:09:37,983 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 14 states. [2018-11-23 07:09:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:38,439 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2018-11-23 07:09:38,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 07:09:38,439 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2018-11-23 07:09:38,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:38,440 INFO L225 Difference]: With dead ends: 106 [2018-11-23 07:09:38,440 INFO L226 Difference]: Without dead ends: 84 [2018-11-23 07:09:38,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=668, Invalid=1402, Unknown=0, NotChecked=0, Total=2070 [2018-11-23 07:09:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-23 07:09:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 64. [2018-11-23 07:09:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-23 07:09:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-11-23 07:09:38,450 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 42 [2018-11-23 07:09:38,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:38,450 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-11-23 07:09:38,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 07:09:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-11-23 07:09:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-23 07:09:38,451 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:38,451 INFO L402 BasicCegarLoop]: trace histogram [21, 21, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:38,452 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:38,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:38,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1542827339, now seen corresponding path program 7 times [2018-11-23 07:09:38,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:38,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:38,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:38,453 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:38,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 229 proven. 49 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-11-23 07:09:38,523 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:38,524 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:38,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:38,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 229 proven. 49 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-11-23 07:09:38,675 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:38,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-11-23 07:09:38,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 07:09:38,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 07:09:38,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:09:38,676 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 19 states. [2018-11-23 07:09:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:38,706 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2018-11-23 07:09:38,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 07:09:38,707 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 63 [2018-11-23 07:09:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:38,707 INFO L225 Difference]: With dead ends: 114 [2018-11-23 07:09:38,708 INFO L226 Difference]: Without dead ends: 73 [2018-11-23 07:09:38,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:09:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-23 07:09:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2018-11-23 07:09:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-23 07:09:38,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2018-11-23 07:09:38,715 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 63 [2018-11-23 07:09:38,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:38,716 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2018-11-23 07:09:38,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 07:09:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2018-11-23 07:09:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-23 07:09:38,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:38,717 INFO L402 BasicCegarLoop]: trace histogram [24, 24, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:38,717 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:38,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:38,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1910289101, now seen corresponding path program 8 times [2018-11-23 07:09:38,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:38,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:38,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:38,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:38,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 293 proven. 64 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-11-23 07:09:38,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:38,810 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:38,822 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:09:38,839 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:09:38,839 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:38,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 293 proven. 64 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-11-23 07:09:38,945 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:38,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-11-23 07:09:38,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 07:09:38,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 07:09:38,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:09:38,946 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 21 states. [2018-11-23 07:09:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:38,983 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2018-11-23 07:09:38,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 07:09:38,984 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 69 [2018-11-23 07:09:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:38,984 INFO L225 Difference]: With dead ends: 124 [2018-11-23 07:09:38,984 INFO L226 Difference]: Without dead ends: 79 [2018-11-23 07:09:38,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:09:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-23 07:09:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2018-11-23 07:09:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-23 07:09:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2018-11-23 07:09:38,994 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 69 [2018-11-23 07:09:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:38,995 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2018-11-23 07:09:38,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 07:09:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2018-11-23 07:09:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-23 07:09:38,996 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:38,996 INFO L402 BasicCegarLoop]: trace histogram [27, 27, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:38,996 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:38,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:38,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1389547215, now seen corresponding path program 9 times [2018-11-23 07:09:38,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:38,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:38,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:38,997 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:38,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 365 proven. 81 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-11-23 07:09:39,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:39,085 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:39,091 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:09:39,116 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2018-11-23 07:09:39,116 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:39,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 367 proven. 81 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-11-23 07:09:39,205 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:39,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2018-11-23 07:09:39,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-23 07:09:39,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-23 07:09:39,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-11-23 07:09:39,206 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 23 states. [2018-11-23 07:09:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:39,248 INFO L93 Difference]: Finished difference Result 134 states and 142 transitions. [2018-11-23 07:09:39,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:09:39,248 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 75 [2018-11-23 07:09:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:39,248 INFO L225 Difference]: With dead ends: 134 [2018-11-23 07:09:39,248 INFO L226 Difference]: Without dead ends: 85 [2018-11-23 07:09:39,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=212, Invalid=340, Unknown=0, NotChecked=0, Total=552 [2018-11-23 07:09:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-23 07:09:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2018-11-23 07:09:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-23 07:09:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2018-11-23 07:09:39,259 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 75 [2018-11-23 07:09:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:39,259 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2018-11-23 07:09:39,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-23 07:09:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2018-11-23 07:09:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-23 07:09:39,260 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:39,260 INFO L402 BasicCegarLoop]: trace histogram [30, 30, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:39,260 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:39,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1348099759, now seen corresponding path program 10 times [2018-11-23 07:09:39,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:39,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:39,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,261 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:39,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-11-23 07:09:39,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:39,323 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:39,329 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:09:39,350 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:09:39,350 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:39,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-11-23 07:09:39,427 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:39,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-11-23 07:09:39,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 07:09:39,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 07:09:39,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:09:39,428 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand 11 states. [2018-11-23 07:09:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:39,470 INFO L93 Difference]: Finished difference Result 132 states and 137 transitions. [2018-11-23 07:09:39,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:09:39,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2018-11-23 07:09:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:39,472 INFO L225 Difference]: With dead ends: 132 [2018-11-23 07:09:39,472 INFO L226 Difference]: Without dead ends: 127 [2018-11-23 07:09:39,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:09:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-23 07:09:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 105. [2018-11-23 07:09:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-23 07:09:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2018-11-23 07:09:39,484 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 81 [2018-11-23 07:09:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:39,484 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2018-11-23 07:09:39,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 07:09:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2018-11-23 07:09:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-23 07:09:39,486 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:39,486 INFO L402 BasicCegarLoop]: trace histogram [40, 40, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:39,486 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:39,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:39,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1467049301, now seen corresponding path program 11 times [2018-11-23 07:09:39,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:39,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:39,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,488 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:39,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1742 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-11-23 07:09:39,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:39,586 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:39,593 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 07:09:39,658 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) [2018-11-23 07:09:39,658 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:39,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1742 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-11-23 07:09:39,757 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:39,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-23 07:09:39,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 07:09:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 07:09:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:09:39,758 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand 13 states. [2018-11-23 07:09:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:39,793 INFO L93 Difference]: Finished difference Result 155 states and 161 transitions. [2018-11-23 07:09:39,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:09:39,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2018-11-23 07:09:39,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:39,795 INFO L225 Difference]: With dead ends: 155 [2018-11-23 07:09:39,795 INFO L226 Difference]: Without dead ends: 150 [2018-11-23 07:09:39,795 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:09:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-23 07:09:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 128. [2018-11-23 07:09:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-11-23 07:09:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2018-11-23 07:09:39,812 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 104 [2018-11-23 07:09:39,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:39,813 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2018-11-23 07:09:39,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 07:09:39,813 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2018-11-23 07:09:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-23 07:09:39,814 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:39,814 INFO L402 BasicCegarLoop]: trace histogram [50, 50, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:39,814 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:39,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:39,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1018125521, now seen corresponding path program 12 times [2018-11-23 07:09:39,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:39,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:39,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,815 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:39,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2735 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2018-11-23 07:09:39,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:39,925 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:39,933 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-23 07:09:39,993 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 46 check-sat command(s) [2018-11-23 07:09:39,993 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:39,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2735 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2018-11-23 07:09:40,065 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:40,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-23 07:09:40,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 07:09:40,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 07:09:40,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-11-23 07:09:40,065 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand 15 states. [2018-11-23 07:09:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:40,096 INFO L93 Difference]: Finished difference Result 178 states and 185 transitions. [2018-11-23 07:09:40,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 07:09:40,096 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 127 [2018-11-23 07:09:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:40,097 INFO L225 Difference]: With dead ends: 178 [2018-11-23 07:09:40,097 INFO L226 Difference]: Without dead ends: 173 [2018-11-23 07:09:40,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-11-23 07:09:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-11-23 07:09:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 151. [2018-11-23 07:09:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-23 07:09:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 157 transitions. [2018-11-23 07:09:40,116 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 157 transitions. Word has length 127 [2018-11-23 07:09:40,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:40,116 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 157 transitions. [2018-11-23 07:09:40,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 07:09:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 157 transitions. [2018-11-23 07:09:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-23 07:09:40,118 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:40,118 INFO L402 BasicCegarLoop]: trace histogram [60, 60, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:40,118 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:40,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:40,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1416411605, now seen corresponding path program 13 times [2018-11-23 07:09:40,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:40,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:40,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,119 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:40,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3951 backedges. 0 proven. 3351 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2018-11-23 07:09:40,226 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:40,226 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:40,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:40,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3951 backedges. 0 proven. 3351 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2018-11-23 07:09:40,389 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:40,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-11-23 07:09:40,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 07:09:40,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 07:09:40,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2018-11-23 07:09:40,390 INFO L87 Difference]: Start difference. First operand 151 states and 157 transitions. Second operand 17 states. [2018-11-23 07:09:40,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:40,445 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-11-23 07:09:40,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:09:40,445 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 150 [2018-11-23 07:09:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:40,446 INFO L225 Difference]: With dead ends: 201 [2018-11-23 07:09:40,446 INFO L226 Difference]: Without dead ends: 196 [2018-11-23 07:09:40,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2018-11-23 07:09:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-11-23 07:09:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 174. [2018-11-23 07:09:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-23 07:09:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 181 transitions. [2018-11-23 07:09:40,475 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 181 transitions. Word has length 150 [2018-11-23 07:09:40,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:40,475 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 181 transitions. [2018-11-23 07:09:40,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 07:09:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 181 transitions. [2018-11-23 07:09:40,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-23 07:09:40,479 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:40,479 INFO L402 BasicCegarLoop]: trace histogram [70, 70, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:40,480 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:40,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:40,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1492973649, now seen corresponding path program 14 times [2018-11-23 07:09:40,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:40,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:40,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:09:40,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5390 backedges. 0 proven. 4690 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2018-11-23 07:09:40,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:40,694 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:40,703 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:09:40,739 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:09:40,739 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:40,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5390 backedges. 0 proven. 4690 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2018-11-23 07:09:40,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:40,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-11-23 07:09:40,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 07:09:40,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 07:09:40,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:09:40,855 INFO L87 Difference]: Start difference. First operand 174 states and 181 transitions. Second operand 19 states. [2018-11-23 07:09:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:40,923 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2018-11-23 07:09:40,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 07:09:40,924 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 173 [2018-11-23 07:09:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:40,925 INFO L225 Difference]: With dead ends: 224 [2018-11-23 07:09:40,925 INFO L226 Difference]: Without dead ends: 219 [2018-11-23 07:09:40,925 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:09:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-11-23 07:09:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197. [2018-11-23 07:09:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-11-23 07:09:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 205 transitions. [2018-11-23 07:09:40,940 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 205 transitions. Word has length 173 [2018-11-23 07:09:40,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:40,940 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 205 transitions. [2018-11-23 07:09:40,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 07:09:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 205 transitions. [2018-11-23 07:09:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-23 07:09:40,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:40,942 INFO L402 BasicCegarLoop]: trace histogram [80, 80, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:40,942 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:40,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:40,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1547162027, now seen corresponding path program 15 times [2018-11-23 07:09:40,943 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:40,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:40,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,943 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:40,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7052 backedges. 0 proven. 6252 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2018-11-23 07:09:41,062 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:41,062 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:41,068 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:09:41,180 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 69 check-sat command(s) [2018-11-23 07:09:41,180 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:41,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 7052 backedges. 0 proven. 6252 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2018-11-23 07:09:41,314 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:41,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-11-23 07:09:41,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 07:09:41,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 07:09:41,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:09:41,316 INFO L87 Difference]: Start difference. First operand 197 states and 205 transitions. Second operand 21 states. [2018-11-23 07:09:41,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:41,364 INFO L93 Difference]: Finished difference Result 247 states and 257 transitions. [2018-11-23 07:09:41,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 07:09:41,365 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 196 [2018-11-23 07:09:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:41,366 INFO L225 Difference]: With dead ends: 247 [2018-11-23 07:09:41,366 INFO L226 Difference]: Without dead ends: 242 [2018-11-23 07:09:41,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:09:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-23 07:09:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 220. [2018-11-23 07:09:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-11-23 07:09:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 229 transitions. [2018-11-23 07:09:41,391 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 229 transitions. Word has length 196 [2018-11-23 07:09:41,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:41,391 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 229 transitions. [2018-11-23 07:09:41,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 07:09:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 229 transitions. [2018-11-23 07:09:41,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-23 07:09:41,393 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:41,393 INFO L402 BasicCegarLoop]: trace histogram [90, 90, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:41,393 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:41,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:41,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1463389231, now seen corresponding path program 16 times [2018-11-23 07:09:41,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:41,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:41,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:41,395 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:41,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 8937 backedges. 0 proven. 8037 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2018-11-23 07:09:41,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:09:41,608 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:09:41,615 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:09:41,664 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:09:41,664 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:09:41,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:09:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8937 backedges. 0 proven. 8037 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2018-11-23 07:09:41,814 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:09:41,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2018-11-23 07:09:41,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-23 07:09:41,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-23 07:09:41,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-11-23 07:09:41,815 INFO L87 Difference]: Start difference. First operand 220 states and 229 transitions. Second operand 23 states. [2018-11-23 07:09:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:41,873 INFO L93 Difference]: Finished difference Result 270 states and 281 transitions. [2018-11-23 07:09:41,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:09:41,873 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 219 [2018-11-23 07:09:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:41,874 INFO L225 Difference]: With dead ends: 270 [2018-11-23 07:09:41,875 INFO L226 Difference]: Without dead ends: 265 [2018-11-23 07:09:41,875 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=212, Invalid=340, Unknown=0, NotChecked=0, Total=552 [2018-11-23 07:09:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-11-23 07:09:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 243. [2018-11-23 07:09:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-11-23 07:09:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 253 transitions. [2018-11-23 07:09:41,901 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 253 transitions. Word has length 219 [2018-11-23 07:09:41,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:41,901 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 253 transitions. [2018-11-23 07:09:41,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-23 07:09:41,901 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 253 transitions. [2018-11-23 07:09:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-23 07:09:41,902 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:09:41,903 INFO L402 BasicCegarLoop]: trace histogram [100, 100, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:09:41,903 INFO L423 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:09:41,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:09:41,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1649132245, now seen corresponding path program 17 times [2018-11-23 07:09:41,903 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:09:41,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:09:41,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:41,904 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:09:41,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:09:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:09:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 11045 backedges. 11036 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 07:09:44,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:09:44,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [105] imperfect sequences [] total 105 [2018-11-23 07:09:44,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-11-23 07:09:44,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-11-23 07:09:44,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5257, Invalid=5663, Unknown=0, NotChecked=0, Total=10920 [2018-11-23 07:09:44,562 INFO L87 Difference]: Start difference. First operand 243 states and 253 transitions. Second operand 105 states. [2018-11-23 07:09:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:09:46,118 INFO L93 Difference]: Finished difference Result 9783 states and 10243 transitions. [2018-11-23 07:09:46,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-11-23 07:09:46,119 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 242 [2018-11-23 07:09:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:09:46,119 INFO L225 Difference]: With dead ends: 9783 [2018-11-23 07:09:46,119 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:09:46,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5261, Invalid=5869, Unknown=0, NotChecked=0, Total=11130 [2018-11-23 07:09:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:09:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:09:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:09:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:09:46,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 242 [2018-11-23 07:09:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:09:46,130 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:09:46,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-11-23 07:09:46,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:09:46,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:09:46,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:09:47,064 WARN L180 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 664 [2018-11-23 07:09:50,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:51,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:52,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:53,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:54,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:55,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:56,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:57,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:58,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:09:59,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:00,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:01,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:02,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:03,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:03,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:03,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:03,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:03,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:04,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:04,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:04,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:04,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:05,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:06,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:07,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:07,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:07,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:07,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:08,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:08,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:08,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:09,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:10,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:10,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:10,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:10,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:11,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:11,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:12,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:12,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:12,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:12,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:12,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:13,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:13,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:14,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:14,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:15,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:15,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:15,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:16,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:16,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:17,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:17,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:17,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:17,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:18,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:19,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:19,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:20,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:21,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:21,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:23,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:23,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:23,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:24,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:24,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:24,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:24,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:24,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:25,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:26,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:27,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:31,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:33,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:36,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:36,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:38,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:38,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:38,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:38,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:39,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:40,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:42,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:46,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:10:54,213 WARN L180 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 5175 DAG size of output: 2149 [2018-11-23 07:10:57,680 WARN L180 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 664 DAG size of output: 59 [2018-11-23 07:11:44,638 WARN L180 SmtUtils]: Spent 46.94 s on a formula simplification. DAG size of input: 2124 DAG size of output: 363 [2018-11-23 07:11:44,640 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:11:44,641 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L444 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (let ((.cse0 (<= 10 main_~m~0)) (.cse1 (<= 10 main_~n~0))) (or (and (<= 30 main_~k~0) (<= main_~i~0 3) .cse0 .cse1) (and .cse0 (<= 100 main_~k~0) .cse1) (and .cse0 (<= 40 main_~k~0) (<= main_~i~0 4) .cse1) (and .cse0 (<= 0 main_~k~0) (<= main_~i~0 0) .cse1) (and .cse0 (<= 60 main_~k~0) (<= main_~i~0 6) .cse1) (and .cse0 (<= 10 main_~k~0) (<= main_~i~0 1) .cse1) (and (<= 80 main_~k~0) .cse0 (<= main_~i~0 8) .cse1) (and (<= 50 main_~k~0) .cse0 (<= main_~i~0 5) .cse1) (and .cse0 (<= main_~i~0 9) .cse1 (<= 90 main_~k~0)) (and (<= 70 main_~k~0) .cse0 (<= main_~i~0 7) .cse1) (and .cse0 (<= 20 main_~k~0) (<= main_~i~0 2) .cse1))) [2018-11-23 07:11:44,641 INFO L444 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (and (<= 10 main_~m~0) (<= 100 main_~k~0) (<= 10 main_~n~0)) [2018-11-23 07:11:44,641 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 24) no Hoare annotation was computed. [2018-11-23 07:11:44,641 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-11-23 07:11:44,642 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 07:11:44,642 INFO L448 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-23 07:11:44,642 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2018-11-23 07:11:44,642 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: (let ((.cse6 (<= 10 main_~m~0)) (.cse39 (<= main_~j~0 2))) (let ((.cse29 (<= main_~j~0 4)) (.cse10 (<= main_~j~0 0)) (.cse24 (<= main_~j~0 3)) (.cse33 (<= main_~j~0 1)) (.cse32 (<= main_~j~0 9)) (.cse14 (<= main_~j~0 7)) (.cse16 (<= main_~j~0 8)) (.cse11 (<= main_~j~0 5)) (.cse23 (<= main_~j~0 6)) (.cse30 (and .cse6 .cse39)) (.cse2 (<= 10 main_~n~0))) (let ((.cse7 (and .cse30 .cse2)) (.cse38 (<= 10 main_~k~0)) (.cse27 (and .cse6 .cse2 .cse23)) (.cse0 (and .cse11 .cse6)) (.cse40 (<= 30 main_~k~0)) (.cse17 (<= main_~i~0 0)) (.cse26 (<= 70 main_~k~0)) (.cse9 (<= 60 main_~k~0)) (.cse37 (<= 90 main_~k~0)) (.cse34 (<= 20 main_~k~0)) (.cse25 (and .cse16 .cse6 .cse2)) (.cse8 (and .cse6 .cse14 .cse2)) (.cse31 (<= 50 main_~k~0)) (.cse21 (and .cse6 .cse32)) (.cse20 (<= main_~i~0 7)) (.cse15 (<= main_~i~0 5)) (.cse3 (and .cse6 .cse33 .cse2)) (.cse19 (and .cse6 .cse24)) (.cse41 (<= 80 main_~k~0)) (.cse1 (<= main_~i~0 8)) (.cse36 (and .cse6 .cse10 .cse2)) (.cse28 (<= main_~i~0 3)) (.cse4 (<= main_~i~0 6)) (.cse13 (<= main_~i~0 1)) (.cse22 (<= main_~i~0 2)) (.cse5 (<= (+ main_~i~0 1) main_~n~0)) (.cse18 (and .cse6 .cse29)) (.cse35 (<= 40 main_~k~0)) (.cse12 (<= main_~i~0 4))) (or (and (<= 85 main_~k~0) .cse0 .cse1 .cse2) (and .cse3 .cse4 (<= 61 main_~k~0)) (and (<= 100 main_~k~0) (and .cse5 .cse6 .cse2)) (and (and .cse5 .cse7) (<= 92 main_~k~0)) (and .cse1 .cse8 (<= 87 main_~k~0)) (and .cse6 .cse9 .cse10 .cse4 .cse2) (and .cse11 .cse6 (<= 45 main_~k~0) .cse12 .cse2) (and .cse6 .cse13 (<= 17 main_~k~0) .cse14 .cse2) (and .cse15 .cse3 (<= 51 main_~k~0)) (and .cse16 .cse6 (<= 8 main_~k~0) .cse17 .cse2) (and (<= 64 main_~k~0) .cse4 .cse2 .cse18) (and .cse19 .cse20 .cse2 (<= 73 main_~k~0)) (and (<= 99 main_~k~0) (and .cse5 .cse21 .cse2)) (and .cse6 (<= 26 main_~k~0) .cse22 .cse2 .cse23) (and .cse11 .cse6 (<= 55 main_~k~0) .cse15 .cse2) (and (<= 89 main_~k~0) .cse21 .cse1 .cse2) (and (<= 69 main_~k~0) .cse21 .cse4 .cse2) (and .cse6 .cse24 (<= 3 main_~k~0) .cse17 .cse2) (and .cse25 .cse1 (<= 88 main_~k~0)) (and .cse26 .cse6 .cse10 .cse20 .cse2) (and (<= 66 main_~k~0) .cse27 .cse4) (and (<= 16 main_~k~0) .cse6 .cse13 .cse2 .cse23) (and .cse6 (<= 0 main_~k~0) .cse10 .cse17 .cse2) (and .cse28 .cse6 .cse29 (<= 34 main_~k~0) .cse2) (and .cse27 (<= 56 main_~k~0) .cse15) (and .cse16 (<= 28 main_~k~0) .cse6 .cse22 .cse2) (and .cse6 (<= 6 main_~k~0) .cse17 .cse2 .cse23) (and .cse15 (<= 52 main_~k~0) .cse30 .cse2) (and (and .cse5 .cse27) (<= 96 main_~k~0)) (and .cse31 .cse12 .cse6 .cse2) (and .cse6 (<= 9 main_~k~0) .cse32 .cse17 .cse2) (and (<= 21 main_~k~0) .cse6 .cse33 .cse22 .cse2) (and .cse12 .cse27 (<= 46 main_~k~0)) (and .cse28 .cse6 (<= 39 main_~k~0) .cse32 .cse2) (and .cse30 .cse20 (<= 72 main_~k~0) .cse2) (and (<= 67 main_~k~0) .cse8 .cse4) (and .cse12 .cse30 (<= 42 main_~k~0) .cse2) (and .cse6 .cse24 .cse13 (<= 13 main_~k~0) .cse2) (and .cse6 .cse34 .cse13 .cse2) (and (<= 33 main_~k~0) .cse28 .cse19 .cse2) (and .cse11 .cse6 (<= 65 main_~k~0) .cse4 .cse2) (and (<= 97 main_~k~0) (and .cse5 .cse8)) (and .cse28 (<= 32 main_~k~0) .cse30 .cse2) (and (<= 82 main_~k~0) .cse7 .cse1) (and (<= 58 main_~k~0) .cse15 .cse25) (and .cse28 .cse6 .cse35 .cse2) (and (and .cse5 .cse36) .cse37) (and .cse6 .cse38 .cse17 .cse2) (and .cse6 .cse33 .cse17 .cse2 (<= 1 main_~k~0)) (and .cse6 (<= 22 main_~k~0) .cse22 .cse39 .cse2) (and (<= 11 main_~k~0) .cse6 .cse33 .cse13 .cse2) (and .cse40 .cse28 .cse6 .cse10 .cse2) (and .cse41 .cse6 .cse20 .cse2) (and .cse11 .cse6 (<= 5 main_~k~0) .cse17 .cse2) (and (<= 83 main_~k~0) .cse1 .cse2 .cse19) (and .cse6 (<= 29 main_~k~0) .cse22 .cse32 .cse2) (and .cse11 .cse6 (<= 25 main_~k~0) .cse22 .cse2) (and .cse6 .cse38 .cse13 .cse10 .cse2) (and .cse28 .cse3 (<= 31 main_~k~0)) (and .cse6 .cse12 .cse29 (<= 44 main_~k~0) .cse2) (and .cse6 (<= 7 main_~k~0) .cse14 .cse17 .cse2) (and (<= 86 main_~k~0) .cse27 .cse1) (and .cse12 .cse8 (<= 47 main_~k~0)) (and (<= 2 main_~k~0) .cse6 .cse39 .cse17 .cse2) (and (and .cse5 .cse2 .cse19) (<= 93 main_~k~0)) (and .cse27 .cse20 (<= 76 main_~k~0)) (and .cse12 .cse19 (<= 43 main_~k~0) .cse2) (and (<= 95 main_~k~0) (and .cse5 .cse0 .cse2)) (and (<= 23 main_~k~0) .cse6 .cse24 .cse22 .cse2) (and (<= 78 main_~k~0) .cse25 .cse20) (and .cse6 .cse12 .cse32 (<= 49 main_~k~0) .cse2) (and .cse6 .cse22 .cse29 .cse2 (<= 24 main_~k~0)) (and .cse11 (<= 75 main_~k~0) .cse6 .cse20 .cse2) (and (<= 84 main_~k~0) .cse1 .cse2 .cse18) (and .cse40 .cse6 .cse22 .cse2) (and .cse6 .cse29 .cse17 (<= 4 main_~k~0) .cse2) (and .cse26 .cse6 .cse4 .cse2) (and (<= 37 main_~k~0) .cse28 .cse6 .cse14 .cse2) (and .cse15 .cse8 (<= 57 main_~k~0)) (and .cse28 .cse6 (<= 36 main_~k~0) .cse2 .cse23) (and .cse3 (<= 81 main_~k~0) .cse1) (and (<= 68 main_~k~0) .cse25 .cse4) (and .cse9 .cse6 .cse15 .cse2) (and .cse25 .cse12 (<= 48 main_~k~0)) (and (<= 59 main_~k~0) .cse15 .cse21 .cse2) (and .cse1 .cse6 .cse2 .cse37) (and .cse6 .cse13 .cse39 (<= 12 main_~k~0) .cse2) (and .cse28 .cse11 .cse6 (<= 35 main_~k~0) .cse2) (and .cse6 .cse34 .cse22 .cse10 .cse2) (and (and .cse5 .cse25) (<= 98 main_~k~0)) (and .cse8 .cse20 (<= 77 main_~k~0)) (and .cse31 .cse6 .cse15 .cse10 .cse2) (and .cse12 .cse3 (<= 41 main_~k~0)) (and .cse6 .cse13 .cse32 .cse2 (<= 19 main_~k~0)) (and .cse11 .cse6 (<= 15 main_~k~0) .cse13 .cse2) (and .cse21 .cse20 (<= 79 main_~k~0) .cse2) (and (<= 54 main_~k~0) .cse15 .cse2 .cse18) (and (<= 74 main_~k~0) .cse20 .cse2 .cse18) (and .cse3 (<= 71 main_~k~0) .cse20) (and (<= 53 main_~k~0) .cse19 .cse15 .cse2) (and .cse16 .cse6 (<= 18 main_~k~0) .cse13 .cse2) (and (<= 91 main_~k~0) (and .cse5 .cse3)) (and .cse19 (<= 63 main_~k~0) .cse4 .cse2) (and .cse41 .cse1 .cse36) (and .cse28 .cse16 .cse6 (<= 38 main_~k~0) .cse2) (and .cse30 (<= 62 main_~k~0) .cse4 .cse2) (and (<= 14 main_~k~0) .cse6 .cse13 .cse29 .cse2) (and .cse6 .cse22 .cse14 .cse2 (<= 27 main_~k~0)) (and (and .cse5 .cse2 .cse18) (<= 94 main_~k~0)) (and .cse6 .cse35 .cse12 .cse10 .cse2))))) [2018-11-23 07:11:44,643 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 07:11:44,643 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 07:11:44,643 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 07:11:44,643 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 07:11:44,643 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 07:11:44,643 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 07:11:44,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:11:44 BoogieIcfgContainer [2018-11-23 07:11:44,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:11:44,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:11:44,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:11:44,671 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:11:44,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:09:36" (3/4) ... [2018-11-23 07:11:44,675 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:11:44,681 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:11:44,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:11:44,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 07:11:44,686 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 07:11:44,686 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:11:44,686 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:11:44,725 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68317b11-a161-49b6-a4e1-05e5ffa70043/bin-2019/uautomizer/witness.graphml [2018-11-23 07:11:44,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:11:44,726 INFO L168 Benchmark]: Toolchain (without parser) took 128786.21 ms. Allocated memory was 1.0 GB in the beginning and 4.8 GB in the end (delta: 3.8 GB). Free memory was 959.8 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. [2018-11-23 07:11:44,727 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:11:44,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:11:44,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:11:44,728 INFO L168 Benchmark]: Boogie Preprocessor took 12.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:11:44,728 INFO L168 Benchmark]: RCFGBuilder took 172.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:11:44,728 INFO L168 Benchmark]: TraceAbstraction took 128361.74 ms. Allocated memory was 1.2 GB in the beginning and 4.8 GB in the end (delta: 3.6 GB). Free memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. [2018-11-23 07:11:44,728 INFO L168 Benchmark]: Witness Printer took 54.58 ms. Allocated memory is still 4.8 GB. Free memory is still 3.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:11:44,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 172.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 128361.74 ms. Allocated memory was 1.2 GB in the beginning and 4.8 GB in the end (delta: 3.6 GB). Free memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. * Witness Printer took 54.58 ms. Allocated memory is still 4.8 GB. Free memory is still 3.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 17]: Loop Invariant Derived loop invariant: ((((((((((((30 <= k && i <= 3) && 10 <= m) && 10 <= n) || ((10 <= m && 100 <= k) && 10 <= n)) || (((10 <= m && 40 <= k) && i <= 4) && 10 <= n)) || (((10 <= m && 0 <= k) && i <= 0) && 10 <= n)) || (((10 <= m && 60 <= k) && i <= 6) && 10 <= n)) || (((10 <= m && 10 <= k) && i <= 1) && 10 <= n)) || (((80 <= k && 10 <= m) && i <= 8) && 10 <= n)) || (((50 <= k && 10 <= m) && i <= 5) && 10 <= n)) || (((10 <= m && i <= 9) && 10 <= n) && 90 <= k)) || (((70 <= k && 10 <= m) && i <= 7) && 10 <= n)) || (((10 <= m && 20 <= k) && i <= 2) && 10 <= n) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((85 <= k && j <= 5 && 10 <= m) && i <= 8) && 10 <= n) || ((((10 <= m && j <= 1) && 10 <= n) && i <= 6) && 61 <= k)) || (100 <= k && (i + 1 <= n && 10 <= m) && 10 <= n)) || ((i + 1 <= n && (10 <= m && j <= 2) && 10 <= n) && 92 <= k)) || ((i <= 8 && (10 <= m && j <= 7) && 10 <= n) && 87 <= k)) || ((((10 <= m && 60 <= k) && j <= 0) && i <= 6) && 10 <= n)) || ((((j <= 5 && 10 <= m) && 45 <= k) && i <= 4) && 10 <= n)) || ((((10 <= m && i <= 1) && 17 <= k) && j <= 7) && 10 <= n)) || ((i <= 5 && (10 <= m && j <= 1) && 10 <= n) && 51 <= k)) || ((((j <= 8 && 10 <= m) && 8 <= k) && i <= 0) && 10 <= n)) || (((64 <= k && i <= 6) && 10 <= n) && 10 <= m && j <= 4)) || ((((10 <= m && j <= 3) && i <= 7) && 10 <= n) && 73 <= k)) || (99 <= k && (i + 1 <= n && 10 <= m && j <= 9) && 10 <= n)) || ((((10 <= m && 26 <= k) && i <= 2) && 10 <= n) && j <= 6)) || ((((j <= 5 && 10 <= m) && 55 <= k) && i <= 5) && 10 <= n)) || (((89 <= k && 10 <= m && j <= 9) && i <= 8) && 10 <= n)) || (((69 <= k && 10 <= m && j <= 9) && i <= 6) && 10 <= n)) || ((((10 <= m && j <= 3) && 3 <= k) && i <= 0) && 10 <= n)) || ((((j <= 8 && 10 <= m) && 10 <= n) && i <= 8) && 88 <= k)) || ((((70 <= k && 10 <= m) && j <= 0) && i <= 7) && 10 <= n)) || ((66 <= k && (10 <= m && 10 <= n) && j <= 6) && i <= 6)) || ((((16 <= k && 10 <= m) && i <= 1) && 10 <= n) && j <= 6)) || ((((10 <= m && 0 <= k) && j <= 0) && i <= 0) && 10 <= n)) || ((((i <= 3 && 10 <= m) && j <= 4) && 34 <= k) && 10 <= n)) || ((((10 <= m && 10 <= n) && j <= 6) && 56 <= k) && i <= 5)) || ((((j <= 8 && 28 <= k) && 10 <= m) && i <= 2) && 10 <= n)) || ((((10 <= m && 6 <= k) && i <= 0) && 10 <= n) && j <= 6)) || (((i <= 5 && 52 <= k) && 10 <= m && j <= 2) && 10 <= n)) || ((i + 1 <= n && (10 <= m && 10 <= n) && j <= 6) && 96 <= k)) || (((50 <= k && i <= 4) && 10 <= m) && 10 <= n)) || ((((10 <= m && 9 <= k) && j <= 9) && i <= 0) && 10 <= n)) || ((((21 <= k && 10 <= m) && j <= 1) && i <= 2) && 10 <= n)) || ((i <= 4 && (10 <= m && 10 <= n) && j <= 6) && 46 <= k)) || ((((i <= 3 && 10 <= m) && 39 <= k) && j <= 9) && 10 <= n)) || ((((10 <= m && j <= 2) && i <= 7) && 72 <= k) && 10 <= n)) || ((67 <= k && (10 <= m && j <= 7) && 10 <= n) && i <= 6)) || (((i <= 4 && 10 <= m && j <= 2) && 42 <= k) && 10 <= n)) || ((((10 <= m && j <= 3) && i <= 1) && 13 <= k) && 10 <= n)) || (((10 <= m && 20 <= k) && i <= 1) && 10 <= n)) || (((33 <= k && i <= 3) && 10 <= m && j <= 3) && 10 <= n)) || ((((j <= 5 && 10 <= m) && 65 <= k) && i <= 6) && 10 <= n)) || (97 <= k && i + 1 <= n && (10 <= m && j <= 7) && 10 <= n)) || (((i <= 3 && 32 <= k) && 10 <= m && j <= 2) && 10 <= n)) || ((82 <= k && (10 <= m && j <= 2) && 10 <= n) && i <= 8)) || ((58 <= k && i <= 5) && (j <= 8 && 10 <= m) && 10 <= n)) || (((i <= 3 && 10 <= m) && 40 <= k) && 10 <= n)) || ((i + 1 <= n && (10 <= m && j <= 0) && 10 <= n) && 90 <= k)) || (((10 <= m && 10 <= k) && i <= 0) && 10 <= n)) || ((((10 <= m && j <= 1) && i <= 0) && 10 <= n) && 1 <= k)) || ((((10 <= m && 22 <= k) && i <= 2) && j <= 2) && 10 <= n)) || ((((11 <= k && 10 <= m) && j <= 1) && i <= 1) && 10 <= n)) || ((((30 <= k && i <= 3) && 10 <= m) && j <= 0) && 10 <= n)) || (((80 <= k && 10 <= m) && i <= 7) && 10 <= n)) || ((((j <= 5 && 10 <= m) && 5 <= k) && i <= 0) && 10 <= n)) || (((83 <= k && i <= 8) && 10 <= n) && 10 <= m && j <= 3)) || ((((10 <= m && 29 <= k) && i <= 2) && j <= 9) && 10 <= n)) || ((((j <= 5 && 10 <= m) && 25 <= k) && i <= 2) && 10 <= n)) || ((((10 <= m && 10 <= k) && i <= 1) && j <= 0) && 10 <= n)) || ((i <= 3 && (10 <= m && j <= 1) && 10 <= n) && 31 <= k)) || ((((10 <= m && i <= 4) && j <= 4) && 44 <= k) && 10 <= n)) || ((((10 <= m && 7 <= k) && j <= 7) && i <= 0) && 10 <= n)) || ((86 <= k && (10 <= m && 10 <= n) && j <= 6) && i <= 8)) || ((i <= 4 && (10 <= m && j <= 7) && 10 <= n) && 47 <= k)) || ((((2 <= k && 10 <= m) && j <= 2) && i <= 0) && 10 <= n)) || (((i + 1 <= n && 10 <= n) && 10 <= m && j <= 3) && 93 <= k)) || ((((10 <= m && 10 <= n) && j <= 6) && i <= 7) && 76 <= k)) || (((i <= 4 && 10 <= m && j <= 3) && 43 <= k) && 10 <= n)) || (95 <= k && (i + 1 <= n && j <= 5 && 10 <= m) && 10 <= n)) || ((((23 <= k && 10 <= m) && j <= 3) && i <= 2) && 10 <= n)) || ((78 <= k && (j <= 8 && 10 <= m) && 10 <= n) && i <= 7)) || ((((10 <= m && i <= 4) && j <= 9) && 49 <= k) && 10 <= n)) || ((((10 <= m && i <= 2) && j <= 4) && 10 <= n) && 24 <= k)) || ((((j <= 5 && 75 <= k) && 10 <= m) && i <= 7) && 10 <= n)) || (((84 <= k && i <= 8) && 10 <= n) && 10 <= m && j <= 4)) || (((30 <= k && 10 <= m) && i <= 2) && 10 <= n)) || ((((10 <= m && j <= 4) && i <= 0) && 4 <= k) && 10 <= n)) || (((70 <= k && 10 <= m) && i <= 6) && 10 <= n)) || ((((37 <= k && i <= 3) && 10 <= m) && j <= 7) && 10 <= n)) || ((i <= 5 && (10 <= m && j <= 7) && 10 <= n) && 57 <= k)) || ((((i <= 3 && 10 <= m) && 36 <= k) && 10 <= n) && j <= 6)) || ((((10 <= m && j <= 1) && 10 <= n) && 81 <= k) && i <= 8)) || ((68 <= k && (j <= 8 && 10 <= m) && 10 <= n) && i <= 6)) || (((60 <= k && 10 <= m) && i <= 5) && 10 <= n)) || ((((j <= 8 && 10 <= m) && 10 <= n) && i <= 4) && 48 <= k)) || (((59 <= k && i <= 5) && 10 <= m && j <= 9) && 10 <= n)) || (((i <= 8 && 10 <= m) && 10 <= n) && 90 <= k)) || ((((10 <= m && i <= 1) && j <= 2) && 12 <= k) && 10 <= n)) || ((((i <= 3 && j <= 5) && 10 <= m) && 35 <= k) && 10 <= n)) || ((((10 <= m && 20 <= k) && i <= 2) && j <= 0) && 10 <= n)) || ((i + 1 <= n && (j <= 8 && 10 <= m) && 10 <= n) && 98 <= k)) || ((((10 <= m && j <= 7) && 10 <= n) && i <= 7) && 77 <= k)) || ((((50 <= k && 10 <= m) && i <= 5) && j <= 0) && 10 <= n)) || ((i <= 4 && (10 <= m && j <= 1) && 10 <= n) && 41 <= k)) || ((((10 <= m && i <= 1) && j <= 9) && 10 <= n) && 19 <= k)) || ((((j <= 5 && 10 <= m) && 15 <= k) && i <= 1) && 10 <= n)) || ((((10 <= m && j <= 9) && i <= 7) && 79 <= k) && 10 <= n)) || (((54 <= k && i <= 5) && 10 <= n) && 10 <= m && j <= 4)) || (((74 <= k && i <= 7) && 10 <= n) && 10 <= m && j <= 4)) || ((((10 <= m && j <= 1) && 10 <= n) && 71 <= k) && i <= 7)) || (((53 <= k && 10 <= m && j <= 3) && i <= 5) && 10 <= n)) || ((((j <= 8 && 10 <= m) && 18 <= k) && i <= 1) && 10 <= n)) || (91 <= k && i + 1 <= n && (10 <= m && j <= 1) && 10 <= n)) || ((((10 <= m && j <= 3) && 63 <= k) && i <= 6) && 10 <= n)) || ((80 <= k && i <= 8) && (10 <= m && j <= 0) && 10 <= n)) || ((((i <= 3 && j <= 8) && 10 <= m) && 38 <= k) && 10 <= n)) || ((((10 <= m && j <= 2) && 62 <= k) && i <= 6) && 10 <= n)) || ((((14 <= k && 10 <= m) && i <= 1) && j <= 4) && 10 <= n)) || ((((10 <= m && i <= 2) && j <= 7) && 10 <= n) && 27 <= k)) || (((i + 1 <= n && 10 <= n) && 10 <= m && j <= 4) && 94 <= k)) || ((((10 <= m && 40 <= k) && i <= 4) && j <= 0) && 10 <= n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 128.2s OverallTime, 19 OverallIterations, 100 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 118.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 640 SDtfs, 1207 SDslu, 2496 SDs, 0 SdLazy, 1148 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1728 GetRequests, 1351 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2162 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=18, traceCheckStatistics: No data available, 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: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 206 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 26 PreInvPairs, 5143 NumberOfFragments, 1975 HoareAnnotationTreeSize, 26 FomulaSimplifications, 6253508 FormulaSimplificationTreeSizeReduction, 68.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 169524 FormulaSimplificationTreeSizeReductionInter, 50.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 3125 NumberOfCodeBlocks, 3074 NumberOfCodeBlocksAsserted, 223 NumberOfCheckSat, 3090 ConstructedInterpolants, 0 QuantifiedInterpolants, 2215476 SizeOfPredicates, 32 NumberOfNonLiveVariables, 3450 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 35 InterpolantComputations, 3 PerfectInterpolantSequences, 23423/77196 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...