./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/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 f01979d5da4d022026be8efd02bfc41090b6cbce ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:16:41,920 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:16:41,921 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:16:41,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:16:41,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:16:41,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:16:41,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:16:41,934 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:16:41,936 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:16:41,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:16:41,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:16:41,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:16:41,938 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:16:41,941 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:16:41,945 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:16:41,946 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:16:41,947 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:16:41,948 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:16:41,950 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:16:41,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:16:41,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:16:41,965 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:16:41,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:16:41,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:16:41,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:16:41,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:16:41,968 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:16:41,969 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:16:41,969 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:16:41,970 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:16:41,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:16:41,971 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:16:41,971 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:16:41,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:16:41,972 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:16:41,972 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:16:41,973 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-27 00:16:41,990 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:16:41,991 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:16:41,991 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:16:41,992 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:16:41,992 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:16:41,992 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:16:41,992 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:16:41,993 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:16:41,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:16:41,994 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:16:41,994 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:16:41,994 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:16:41,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:16:41,994 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:16:41,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:16:41,995 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:16:41,996 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:16:41,997 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:16:41,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:16:41,998 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_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/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 -> f01979d5da4d022026be8efd02bfc41090b6cbce [2018-10-27 00:16:42,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:16:42,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:16:42,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:16:42,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:16:42,038 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:16:42,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-10-27 00:16:42,091 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/data/420662178/25c3386e699d467d8da548f5fa172900/FLAG0fa23b439 [2018-10-27 00:16:42,551 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:16:42,552 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-10-27 00:16:42,562 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/data/420662178/25c3386e699d467d8da548f5fa172900/FLAG0fa23b439 [2018-10-27 00:16:42,574 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/data/420662178/25c3386e699d467d8da548f5fa172900 [2018-10-27 00:16:42,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:16:42,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:16:42,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:16:42,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:16:42,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:16:42,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:16:42" (1/1) ... [2018-10-27 00:16:42,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c17ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:42, skipping insertion in model container [2018-10-27 00:16:42,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:16:42" (1/1) ... [2018-10-27 00:16:42,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:16:42,647 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:16:42,945 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:16:42,954 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:16:43,062 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:16:43,081 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:16:43,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43 WrapperNode [2018-10-27 00:16:43,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:16:43,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:16:43,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:16:43,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:16:43,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... [2018-10-27 00:16:43,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:16:43,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:16:43,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:16:43,262 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:16:43,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/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 [2018-10-27 00:16:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:16:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:16:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:16:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:16:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:16:45,981 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:16:45,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:16:45 BoogieIcfgContainer [2018-10-27 00:16:45,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:16:45,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:16:45,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:16:45,985 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:16:45,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:16:42" (1/3) ... [2018-10-27 00:16:45,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42faaa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:16:45, skipping insertion in model container [2018-10-27 00:16:45,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:16:43" (2/3) ... [2018-10-27 00:16:45,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42faaa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:16:45, skipping insertion in model container [2018-10-27 00:16:45,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:16:45" (3/3) ... [2018-10-27 00:16:45,989 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label34_true-unreach-call_false-termination.c [2018-10-27 00:16:45,997 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:16:46,005 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:16:46,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:16:46,047 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:16:46,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:16:46,047 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:16:46,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:16:46,048 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:16:46,048 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:16:46,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:16:46,048 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:16:46,048 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:16:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-27 00:16:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-27 00:16:46,076 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:16:46,077 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:16:46,079 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:16:46,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:16:46,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1144269880, now seen corresponding path program 1 times [2018-10-27 00:16:46,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:16:46,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:16:46,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:46,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:46,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:46,552 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:16:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:46,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:16:46,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:16:46,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:16:46,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:16:46,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:16:46,620 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-27 00:16:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:16:47,570 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-27 00:16:47,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:16:47,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2018-10-27 00:16:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:16:47,592 INFO L225 Difference]: With dead ends: 550 [2018-10-27 00:16:47,592 INFO L226 Difference]: Without dead ends: 340 [2018-10-27 00:16:47,598 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:16:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-27 00:16:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-27 00:16:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-27 00:16:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-10-27 00:16:47,652 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 112 [2018-10-27 00:16:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:16:47,653 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-10-27 00:16:47,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:16:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-10-27 00:16:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-27 00:16:47,663 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:16:47,663 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:16:47,664 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:16:47,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:16:47,664 INFO L82 PathProgramCache]: Analyzing trace with hash -255516033, now seen corresponding path program 1 times [2018-10-27 00:16:47,664 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:16:47,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:16:47,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:47,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:47,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:47,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:16:47,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:16:47,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:16:47,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:16:47,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:16:47,809 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-10-27 00:16:49,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:16:49,203 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-10-27 00:16:49,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:16:49,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-10-27 00:16:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:16:49,221 INFO L225 Difference]: With dead ends: 1079 [2018-10-27 00:16:49,225 INFO L226 Difference]: Without dead ends: 745 [2018-10-27 00:16:49,227 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:16:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-10-27 00:16:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-10-27 00:16:49,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-10-27 00:16:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-10-27 00:16:49,269 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 122 [2018-10-27 00:16:49,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:16:49,270 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-10-27 00:16:49,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:16:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-10-27 00:16:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-27 00:16:49,274 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:16:49,274 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:16:49,275 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:16:49,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:16:49,275 INFO L82 PathProgramCache]: Analyzing trace with hash -289707029, now seen corresponding path program 1 times [2018-10-27 00:16:49,275 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:16:49,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:16:49,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:49,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:49,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:49,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:16:49,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:16:49,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:16:49,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:16:49,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:16:49,470 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 3 states. [2018-10-27 00:16:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:16:50,569 INFO L93 Difference]: Finished difference Result 1919 states and 3096 transitions. [2018-10-27 00:16:50,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:16:50,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-10-27 00:16:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:16:50,576 INFO L225 Difference]: With dead ends: 1919 [2018-10-27 00:16:50,576 INFO L226 Difference]: Without dead ends: 1192 [2018-10-27 00:16:50,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:16:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2018-10-27 00:16:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2018-10-27 00:16:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2018-10-27 00:16:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1735 transitions. [2018-10-27 00:16:50,612 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1735 transitions. Word has length 132 [2018-10-27 00:16:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:16:50,613 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 1735 transitions. [2018-10-27 00:16:50,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:16:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1735 transitions. [2018-10-27 00:16:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-27 00:16:50,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:16:50,617 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:16:50,617 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:16:50,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:16:50,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1523382030, now seen corresponding path program 1 times [2018-10-27 00:16:50,618 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:16:50,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:16:50,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:50,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:50,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:51,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:16:51,040 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/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 [2018-10-27 00:16:51,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:51,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:16:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 00:16:51,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:16:51,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2018-10-27 00:16:51,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:16:51,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:16:51,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:16:51,375 INFO L87 Difference]: Start difference. First operand 1192 states and 1735 transitions. Second operand 7 states. [2018-10-27 00:16:54,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:16:54,254 INFO L93 Difference]: Finished difference Result 4011 states and 6158 transitions. [2018-10-27 00:16:54,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 00:16:54,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2018-10-27 00:16:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:16:54,274 INFO L225 Difference]: With dead ends: 4011 [2018-10-27 00:16:54,275 INFO L226 Difference]: Without dead ends: 2825 [2018-10-27 00:16:54,281 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:16:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2018-10-27 00:16:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2739. [2018-10-27 00:16:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2739 states. [2018-10-27 00:16:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3893 transitions. [2018-10-27 00:16:54,376 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3893 transitions. Word has length 134 [2018-10-27 00:16:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:16:54,377 INFO L481 AbstractCegarLoop]: Abstraction has 2739 states and 3893 transitions. [2018-10-27 00:16:54,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:16:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3893 transitions. [2018-10-27 00:16:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-27 00:16:54,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:16:54,387 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:16:54,387 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:16:54,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:16:54,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1372599714, now seen corresponding path program 1 times [2018-10-27 00:16:54,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:16:54,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:16:54,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:54,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:54,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:16:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:54,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:16:54,874 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/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 [2018-10-27 00:16:54,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:16:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:16:54,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:16:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:16:55,067 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 00:16:55,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-10-27 00:16:55,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:16:55,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:16:55,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:16:55,068 INFO L87 Difference]: Start difference. First operand 2739 states and 3893 transitions. Second operand 9 states. [2018-10-27 00:16:59,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:16:59,241 INFO L93 Difference]: Finished difference Result 7232 states and 10720 transitions. [2018-10-27 00:16:59,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-27 00:16:59,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2018-10-27 00:16:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:16:59,243 INFO L225 Difference]: With dead ends: 7232 [2018-10-27 00:16:59,243 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:16:59,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2018-10-27 00:16:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:16:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:16:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:16:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:16:59,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2018-10-27 00:16:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:16:59,270 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:16:59,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:16:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:16:59,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:16:59,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:16:59,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 00:16:59,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 00:16:59,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 00:16:59,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 00:16:59,664 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-27 00:17:00,080 WARN L179 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 46 [2018-10-27 00:17:00,206 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2018-10-27 00:17:00,295 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a21~0 |old(~a21~0)|)) [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L565(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L532(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L499(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L466(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,296 INFO L425 ceAbstractionStarter]: For program point L433(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L400(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L568(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,297 INFO L425 ceAbstractionStarter]: For program point L535(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L502(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L469(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L436(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L403(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-10-27 00:17:00,298 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-10-27 00:17:00,299 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L571(lines 571 573) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L538(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,300 INFO L425 ceAbstractionStarter]: For program point L505(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L472(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L439(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L406(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-10-27 00:17:00,301 INFO L425 ceAbstractionStarter]: For program point L541(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L508(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L475(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L442(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L409(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-10-27 00:17:00,302 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L544(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L511(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L478(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L445(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L412(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2018-10-27 00:17:00,303 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L547(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L514(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L481(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L448(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L415(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,304 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-10-27 00:17:00,305 INFO L425 ceAbstractionStarter]: For program point L550(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L517(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L484(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L451(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L418(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-10-27 00:17:00,306 INFO L425 ceAbstractionStarter]: For program point L553(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L520(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L487(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L454(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L421(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-10-27 00:17:00,319 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse9 (= 1 ~a7~0)) (.cse10 (= |old(~a8~0)| ~a8~0)) (.cse12 (not (= ~a16~0 6))) (.cse11 (= ~a21~0 |old(~a21~0)|))) (let ((.cse6 (and .cse9 .cse10 .cse12 .cse11)) (.cse8 (and (= ~a7~0 |old(~a7~0)|) .cse10 .cse11)) (.cse7 (< 13 |old(~a8~0)|)) (.cse2 (not (= 1 |old(~a20~0)|))) (.cse4 (not (= 1 |old(~a7~0)|))) (.cse3 (= 1 ~a20~0)) (.cse0 (= 6 |old(~a16~0)|)) (.cse1 (not (= 1 |old(~a21~0)|))) (.cse5 (< 0 |old(~a7~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse2 .cse5) (or .cse0 .cse1 .cse6 .cse4) (or .cse0 .cse7 .cse6 .cse4) (or .cse1 (= 13 |old(~a8~0)|) .cse8 .cse5) (or .cse1 .cse2 .cse5 .cse8) (or .cse0 .cse1 .cse5 .cse8) (or .cse7 .cse2 .cse4 (and .cse9 .cse10 .cse3 .cse11)) (or .cse0 .cse1 .cse12 .cse5)))) [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L556(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L523(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,320 INFO L425 ceAbstractionStarter]: For program point L457(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L424(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L391-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-10-27 00:17:00,321 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L559(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L526(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L493(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L460(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L427(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L394(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,322 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-10-27 00:17:00,327 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L562(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L529(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L496(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L463(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L430(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L397(lines 30 575) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-10-27 00:17:00,328 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a20~0) (not (= ~a16~0 6)) (= 1 ~a21~0) (<= ~a7~0 0) (not (= ~a8~0 13))) [2018-10-27 00:17:00,329 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= 1 ~a20~0) (not (= ~a16~0 6)) (= ~a21~0 |old(~a21~0)|)) (= 13 |old(~a8~0)|) (< 0 |old(~a7~0)|)) [2018-10-27 00:17:00,329 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-10-27 00:17:00,329 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= 1 ~a21~0)) (.cse3 (<= ~a7~0 0)) (.cse4 (= 1 ~a20~0)) (.cse5 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6)))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= 1 |old(~a20~0)|)) (< 0 |old(~a7~0)|) (and .cse1 .cse2 .cse3) (= 6 |old(~a16~0)|) (and .cse4 .cse2 .cse3) (and .cse2 (not (= ~a8~0 13)) .cse3) (and .cse5 .cse0 .cse4) (= 13 |old(~a8~0)|) (and .cse5 .cse0 .cse1))) [2018-10-27 00:17:00,330 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-10-27 00:17:00,330 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-10-27 00:17:00,330 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-10-27 00:17:00,330 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse2 (= 1 ~a21~0)) (.cse3 (<= ~a7~0 0)) (.cse4 (= 1 ~a20~0)) (.cse5 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6)))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= 1 |old(~a20~0)|)) (< 0 |old(~a7~0)|) (and .cse1 .cse2 .cse3) (= 6 |old(~a16~0)|) (and .cse4 .cse2 .cse3) (and .cse2 (not (= ~a8~0 13)) .cse3) (and .cse5 .cse0 .cse4) (= 13 |old(~a8~0)|) (and .cse5 .cse0 .cse1))) [2018-10-27 00:17:00,330 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-10-27 00:17:00,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:17:00 BoogieIcfgContainer [2018-10-27 00:17:00,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:17:00,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:17:00,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:17:00,350 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:17:00,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:16:45" (3/4) ... [2018-10-27 00:17:00,355 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:17:00,363 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:17:00,364 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-10-27 00:17:00,364 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:17:00,374 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-27 00:17:00,375 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:17:00,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == \old(a21)) || ((1 == a7 && !(a16 == 6)) && 1 == a21)) || !(1 == \old(a20))) || 0 < \old(a7)) || ((!(a16 == 6) && 1 == a21) && a7 <= 0)) || 6 == \old(a16)) || ((1 == a20 && 1 == a21) && a7 <= 0)) || ((1 == a21 && !(a8 == 13)) && a7 <= 0)) || ((a8 <= 13 && 1 == a7) && 1 == a20)) || 13 == \old(a8)) || ((a8 <= 13 && 1 == a7) && !(a16 == 6)) [2018-10-27 00:17:00,521 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc065db7-f2d7-42aa-bf7c-2f4c79044ef6/bin-2019/uautomizer/witness.graphml [2018-10-27 00:17:00,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:17:00,524 INFO L168 Benchmark]: Toolchain (without parser) took 17945.75 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 370.7 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -218.4 MB). Peak memory consumption was 152.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,525 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:17:00,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 922.2 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,526 INFO L168 Benchmark]: Boogie Preprocessor took 178.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 922.2 MB in the beginning and 1.1 GB in the end (delta: -219.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,526 INFO L168 Benchmark]: RCFGBuilder took 2720.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,526 INFO L168 Benchmark]: TraceAbstraction took 14366.72 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 222.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -157.9 MB). Peak memory consumption was 380.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,526 INFO L168 Benchmark]: Witness Printer took 172.03 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:17:00,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 503.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 922.2 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 178.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 922.2 MB in the beginning and 1.1 GB in the end (delta: -219.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2720.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14366.72 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 222.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -157.9 MB). Peak memory consumption was 380.1 MB. Max. memory is 11.5 GB. * Witness Printer took 172.03 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a21)) || ((1 == a7 && !(a16 == 6)) && 1 == a21)) || !(1 == \old(a20))) || 0 < \old(a7)) || ((!(a16 == 6) && 1 == a21) && a7 <= 0)) || 6 == \old(a16)) || ((1 == a20 && 1 == a21) && a7 <= 0)) || ((1 == a21 && !(a8 == 13)) && a7 <= 0)) || ((a8 <= 13 && 1 == a7) && 1 == a20)) || 13 == \old(a8)) || ((a8 <= 13 && 1 == a7) && !(a16 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 14.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 10.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 507 SDtfs, 4121 SDslu, 701 SDs, 0 SdLazy, 6219 SolverSat, 1326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 342 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2739occurred in iteration=4, 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, 5 MinimizatonAttempts, 98 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 101 PreInvPairs, 229 NumberOfFragments, 428 HoareAnnotationTreeSize, 101 FomulaSimplifications, 4570 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1825 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 986 NumberOfCodeBlocks, 986 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 979 ConstructedInterpolants, 0 QuantifiedInterpolants, 311826 SizeOfPredicates, 3 NumberOfNonLiveVariables, 890 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 210/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...